For Flux Sake

Do things ever explode in a glaze firing? Jul 08, 2026

Today we have a special NCECA focused episode featuring questions recorded in person at this year's conference in Detroit. The gang answer questions about explosions in a glaze firing, sanding bisque ware, and wheel cleaning. They also start the episode taking a trip to Materials Corner to talk about changes in the Red Art supply. Thanks to everyone who stopped by the booth to record with us at NCECA. We can't wait to see you again next year.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Explosions, sanding, cleaning, NCECA, materials corner, Red Art

Do all glazes need Bentonite? Jul 01, 2026

Today we have a special NCECA focused episode featuring questions recorded in person at this year's conference in Detroit. The gang answer questions about using hot wax, refiring in a community studio, particle packing for brushing glazes, and best practices for using Bentonite in glazes. Thanks to everyone who stopped by the booth to record with us.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Wax, refiring, brushing glazes, particle packing, bentonite, NCECA

The Cost versus Reliability episode Jun 10, 2026

Today the gang compares cost versus reliability when buying kilns and kiln shelves. The episode starts with a question about purchasing S-type thermocouples for new kilns and a discussion about preventing warping in cordierite kiln shelves. On a related but strange note, they also talk about how a popular outdoor grill helped lead the U.S. into our current talc shortage.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Rohde Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

S-type, K-type, thermocouple, cordierite, advancer, kiln shelf, Big Green Egg, talc

Can I add something to a commercial glaze to change its temperature? Jun 03, 2026

To start today's episode the gang talk about their upcoming live show in Boston. We hope you will join us June 5th at the Harvard Ed Portal, where Kathy, Matt, Rose, and Producer Ben will be ready to answer your burning questions about clay and glaze. They also answer listener questions about what to do when all your glazes mature at a different temperature, and how to identify a mystery white spot in the surface of your fired glaze.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Rhode Kilns, Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Live show, glaze temperature, Cone 5, Cone 5 ½, Cone 6, crystal formation

Why do layered glazes look different every time? May 13, 2026

Today we have a special Flux U episode where the gang dive deep into glaze application to answer a listener's question about the chemical and physical limitations of glaze layering. What seems like a simple topic turns out to be quite complex. They also talk about helpful tips for buying and installing your first home kiln.

Have you ever wanted to be on a For Flux Sake episode? Join the gang in person for a live taping June 5th at the Harvard Ed Portal! Kathy, Matt, Rose, and Producer Ben will be in Boston to answer your burning questions about clay and glaze. Do you secretly need even more live shows? June 6th you can join a special Flux U taping at Harvard Ceramics. It's going to be a whole wonderful weekend of clay and glaze mania.

Flux U, is an exclusive perk for Patreon members. If you'd like to have access to additional episodes like this one and special merch head on over to Patreon and join the For Flux Sake community.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Glaze application, kiln, electrician, particle packing, layering

Can I use ash from a volcano in my glaze? May 06, 2026

To start today's explosive episode a listener writes in wondering about using ash from Mt. St. Helens in a glaze. The gang also talk about best cleaning practices for keeping pets and children safe in a home studio, and methods for reducing pinholing.

Would you like to ask your burning questions about clay and glaze to Kathy, Matt, and Rose in person? June 5th the whole gang heads to Boston for a live show. It's going to be a blast! Tickets are available now through the Harvard Ed Portal.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Ash Glaze, home studio, silica, silicosis, pinholing

What materials should I buy to start mixing glazes? Apr 08, 2026

We love questions from our educator friends. Today's episode starts with a question from a high school teacher who wondered what the best materials are for starting a glaze lab. The gang also answer a question about cleaning up clay with soap and take a trip to Materials Corner to report on the recent bankruptcy of a major ceramic materials supplier.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Glaze lab, beginner glazes, soap, Materials Corner

Is it best to use the medium or fast fire setting on my kiln? Apr 01, 2026

Have you ever wondered what the firing rates are for the pre-programmed kiln schedules in modern kilns? In today's episode the gang talk about the differences between slow, medium, and fast on Bartlett controllers, and how the rates affect glaze outcomes. They also answer a listener question from Sweden about Boron sources and why some of them were recently banned. To start the episode Rose and Matt also announce their exciting new adventure into the world of commercial glaze - Ware Glaze.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Firing speed, Bartlett controller, borax, boron, Sweden

Why are my plates cracking? Mar 11, 2026

Unloading a kiln can be an emotional rollercoaster, especially if it's filled with a new ceramic form that gives you trouble. Today the gang answer a listener question about how to keep plates from cracking, the best temperature for firing terracotta, and if there is a vegan alternative for shellac.

Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show. Are you coming to NCECA? Look for Matt and Rose at the Ceramic Materials Workshop booth and Kathy at the Harvard Ceramic booth in the expo hall. Hope to see you there.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Compression, particle packing, terracotta, low fire, shellac

What causes carbon coring in clays? Mar 04, 2026

What is carbon coring, and should we care about it? The term is actually a misnomer, with the real culprit being iron, a common ingredient in reduction fired clays. Today the gang talk about the phenomenon along with questions about kiln safety, and best studio practices for kids and pets.

Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show. Are you coming to NCECA? Look for Matt and Rose at the Ceramic Materials Workshop booth and Kathy at the Harvard Ceramic booth in the expo hall. Hope to see you there.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Carbon coring, red iron oxide, black iron oxide, reduction, stoneware clay

Do I really need to sieve my glazes? Feb 11, 2026

Glaze preparation is a necessary part of the ceramic process, but have you ever wondered why sieving glazes is important? Today the gang talk about various ways to prepare a glaze and why you might not need to sieve as much as you think. They also break down the idea of glazes that fire at multiple temperature ranges, and answer a listener's question about bubbling in a clear glaze.

Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Sieving, bubbling, clear glaze, low fire, mid range, high fire

Should I make my own clay? Feb 04, 2026

To start today's episode we take a ride to Materials Corner to talk about the situation with EPK, as well as, if there is an easy substitute to use in clay and glazes. The gang also answers a listener's questions about the feasibility of making your own clay. What equipment do you need? Does doing it yourself save money?

Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

EPK, Materials Corner, clay mixing, pug mill, Pioneer Kaolin, Georgia Kaolin

Do kilns really need peep holes? Jan 15, 2026

Have you ever wondered why kilns have peep holes? Today Matt, Rose, and Kathy debate the function and necessity of peep holes, while also tackling a question about glazing only the interior of a pot. They also start the episode talking about the research Kathy is doing at Harvard Ceramics into the historic use of graphite as a ceramic sealer. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Peep hole, kiln venting, glaze tension, glaze compression, dunting, vitrification

Is there a difference between real and fake ash glazes? Jan 08, 2026

Happy New Year! To start 2026 the gang answer listener questions about ash glazes, mixing brushing and dipping glazes, and how the particle size of colorants affects glaze outcomes. They also begin the episode sharing stories about the highs and lows of art center holiday sales. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Ash, Fake Ash, colorant, particle size, holiday sale, brushing glaze, dipping glaze

Gabriel Kline and Bill Collins on food safe glazes Dec 11, 2025

Have you wondered what makes a glaze food safe? Today we are happy to welcome Gabriel Kline and Bill Collins to the show to talk about the topic, and their new book Amazing Glaze: Food Safe Recipes. They discuss the definition of food safety, how to test glazes, and what they learned after testing dozens of popular cone 6 and cone 10 recipes.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Food safety, leaching, crazing, cone 6, cone 10, shino, phase separation

Why is the last 200 degrees of the firing the most important? Dec 03, 2025

Do you fire your kiln fast or slow? And does it really matter? Today the gang answer a few listener questions about the relationship between temperature, glaze melt, and vitrification. They also discuss a class of clays out of the UK that vitrify at low fire temperatures.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Firing rate, glaze melt, shino, cone 6, cone 8, vitrification

Why is my casting slip hard-panning? Nov 20, 2025

Commercial casting slips are great for their convenience, but what do you do when your recipe hard-pans in the bucket? Today the gang talk about why hard-panning happens and how you can fix it. They also discuss making temp checks, the best bisque temp for commercial glazes, and the controversy around the sale of fake ceramic pigments.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Materials corner, hard-panning, casting slip, commercial glaze, temp checks,

Help my clay is plucking! Nov 12, 2025

Have you ever had small pieces of an unglazed foot ring stick to a kiln shelf? This bummer of a phenomenon is called plucking, and today the gang talk about how and why it happens. They also answer a listener's question about increasing plasticity in halloysite porcelains and take a trip to Materials Corner to discuss the rumors swirling around EPK production. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

EPK, Materials corner, Halloysite, Frost porcelain, Southern Ice porcelain, Bentonite

Halloween Extravaganza with Lord Celsius, Wizard of Clays, and Copper Carb Nov 01, 2025

Halloween is our favorite holiday at For Flux Sake. We can't get enough of the costumes, candy, and science! Join the gang this week as they answer listener questions about using wild clays in a community studio, washing dirty clay laundry, and the proper way to open a bag of dry ceramic material. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Halloween, Lord Celsius, Clay Wizard, Copper Carb, laundry, silicosis, wild clay, dry materials storage

What are the do's and dont's of working in a community studio? Oct 15, 2025

Joining a new community studio can be exciting, but also a little scary. Today the gang talk about how to be a good community member. They also answer listener questions about clay color changes, using tar paper in the studio, and where to start when you get your first potter's wheel. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

vitrification, under fired, clay color, tar paper, community studio, potters wheel

How do you convert glazes to European materials? Oct 08, 2025

Have you ever moved and had to convert your glazes to materials from a different continent? Today the gang talk about how you might do that along with why 'S' type thermocouples are the best for accurate firings. They also answer listener questions about upcycling large amounts of casting slip and solutions for handles that keep popping off. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

thermocouple, casting slip, pulling handles, BMix, European glazes

What's the history behind Orton cones' unusual numbering system? Oct 01, 2025

Today's episode starts with a trip to Materials Corner where the gang talk about the likely end of a favorite Kaolin for soda firing. They also answer listener questions about the logic behind Orton cone's numbering system, the cause of scumming in clay, and the lowest temperature that it's ok to store clay. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Materials Corner, Helmar Kaolin, Orton cones, scumming, winterizing your studio

Is the bacteria in reclaimed clay a problem? Sep 18, 2025

To start the show Kathy shares about the research being conducted into vanishing historic lusters at the Harvard Art Museum. The gang also answer listener questions about material supply chains, the cleanliness of reclaimed clay, and why Matt and Rose went solar. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Chinese lusters, supply chains, reclaimed clay, bacteria, carbon foot print, solar

What makes a glaze have a wide firing range? Sep 10, 2025

Have you ever wondered why some glazes have a wide firing range? Today the gang talk about this phenomenon, answer listener questions about adding stains to clay bodies, and discuss underglaze application. This episode also starts with a trip to Materials Corner along with a check in from a listener about the porosity of flower pots. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Firing range, materials corner, frit 3134, flower pots, underglaze, brushing glaze

What defines low-fire ceramics? Sep 03, 2025

We are back for season 5 of the show with a low-fire themed episode. Today the gang talk about a few parameters that define low-fire ceramics, as well as how de-airing pug mills work. They also start the show talking about the brand new For Flux Sake Patreon. This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today.

Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Cornell Studio Supply, and Ceramic Materials Workshop's Making Glaze Make Sense.

This week's episode features the following topics:

Low-fire, terracotta, pugmill, de-airing, wedge, vitrification

How does a kiln sitter work? Jul 16, 2025

Do you remember the joys of using a kiln sitter? Those mini cones were so cute until you dropped one in the bottom of a fully loaded kiln. Even though manufacturers have shifted to computer controlled models, sitters were a key part of electric kilns for decades. Today on the show the gang answer listener questions about firing a kiln with a kiln sitter and making your own decals. Rose also reads a hilarious story about a clay plasticity experiment gone wrong. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This episode is the last of the season. We will take a summer break for the month of August and be back to start season five in September.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Snow Farm: The New England Craft Program, and Cornell Studio Supply.

This week's episode features the following topics:

Kiln sitter, cones, electric kiln, decals, plasticity, clay formulation

How can you tell if a glaze is fully melted? Jul 09, 2025

Today your favorite glaze experts answer a listener's question about judging the melt of an ash glaze, methods for wet mixing bentonite, and whether or not it's safe to use industrial dinnerware made before lead was regulated. They also open the show talking about why you should never crush encapsulated stains. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Today's episode is brought to you by Monkey Stuff, The Rosenfield Collection, Snow Farm: The New England Craft Program, and Cornell Studio Supply.

This week's episode features the following topics:

Ash glaze, glaze melt, bentonite, macaloid, lead test, encapsulated stain

Are metallic glazes similar to melted metal? Jul 02, 2025

Have you ever wondered what makes a bronze glaze work? This week on the show the gang answer a listener's question about metallic oxides in glazes, and discuss the finer points of what makes a pinhole a pinhole. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Today's episode is brought to you by Cornell Studio Supply and Ceramic Materials Workshop Consulting.

This week's episode features the following topics:

Pin holing, metallic oxides, bronze glazes, cobalt crystalline glazes, crystalline glaze

Can you adjust a cone 6 glaze up to cone 10? Jun 20, 2025

Have you ever found the perfect glaze, but it is formulated for a different temperature? Today the gang talk about adjusting glazes from cone 6 up to cone 10, and how you might tell if your kiln can handle going to cone 10. They also start the episode checking in about their summer plans. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Today's episode is brought to you by Cornell Studio Supply and Ceramic Materials Workshop Consulting.

This week's episode features the following topics:

Cone 6, Cone 10, Bristol glaze, kiln, elements

Does how tight a kiln is packed affect its final temperature? Jun 11, 2025

Have you noticed how a tight kiln pack can slightly change your cones? In this week's episode the gang talk about why this happens, as well as answer a listener's question about firing a balloon inside of a ceramic sculpture. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This episode is made in memory of Megan Whetstine, a beloved member of the For Flux Sake and Ceramic Materials Workshop family. Her sense of humor and creativity will be deeply missed.

This week's episode features the following topics:

Mentorship, kiln packing, cones, balloon, carbon

Today's episode is brought to you by Cornell Studio Supply and Ceramic Materials Workshop Consulting.

What does vinegar do to clay? Jun 05, 2025

Have you ever wondered why vinegar is added to joining slip? This week on the show the gang talk about the use of vinegar in the studio and the absorption rates of blending reclaimed clays. They also answer a listener's question about glazing terracotta flower pots. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Vinegar, Vitrification, reclaim, absorption, terracotta flowerpots

Today's episode is brought to you by Cornell Studio Supply and Ceramic Materials Workshop Consulting.

Fluxed Up with Steven Young Lee May 21, 2025

Get ready for a wild ride in the studio with ceramic artist Steve Lee! In this episode of our Fluxed Up series, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Steven shares about his path to harnessing failure to create his beautiful porcelain forms, as well as his time as director of the Archie Bray Foundation and his role in starting the Brickyard Network. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist.

Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics:

Porcelain, Archie Bray Foundation, Brickyard Network, gas firing

Today's episode is brought to you by Cornell Studio Supply and Ceramic Materials Workshop Consulting.

Are ceramic sealers safe to use on functional ceramics? May 14, 2025

Today we return to the much loved topic of glaze durability on For Flux Sake. Kathy, Matt, and Rose start by talking about the long term durability of Bristol glazes. Then they delve into listener questions about ceramic sealers and substituting for Gerstley Borate in Raku glazes. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Glaze durability, Bristol glaze, ceramic sealer, tile sealer, Gerstley Borate, Gillespie Borate

Today's episode is brought to you by Cornell Studio Supply and the newly translated Spanish version of Ceramic Materials Workshop The Middle Glazes.

Episode 100! May 07, 2025

Today we are celebrating the 100th episode of For Flux Sake! We'd like to thank the listeners for their excellent questions and for following along as the show has evolved over the last four years. To start this episode Kathy, Matt, and Rose share a few things they have learned making the show. They also answer listener questions about aging your glazes and single firing. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Bisque Firing, single firing, aging glazes, glaze

Today's episode is brought to you by Cornell Studio Supply and the newly translated Spanish version of Ceramic Materials Workshop The Middle Glazes.

Fluxed Up with Susan Feagin Apr 23, 2025

Get ready for a wild ride in the studio with ceramic artist Susan Feagin! In this episode of our Fluxed Up series, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Susan shares funny stories about working at the Penland School of Craft, as well as how she creates brightly colored slips for soda firing. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics:

Soda Firing, Slip, Penland, glaze, cone 6

Today's episode is brought to you by Cornell Studio Supply and the newly translated Spanish version of Ceramic Materials Workshop The Middle Glazes.

When do glazes actually melt during the firing? Apr 17, 2025

Have you ever wondered when the magic happens during the firing? This week on the show the gang talk about the last 100 degrees C of the firing when glazes generally do their melting. They also answer a listener's question about thermocouples placement, and take a trip to Materials Corner to talk about Frit 3110. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Firing, Frit 3110, Thermocouple, Materials Corner, glaze melting, boron

Today's episode is brought to you by Cornell Studio Supply and the newly translated Spanish version of Ceramic Materials Workshop The Middle Glazes.

Who are we? Apr 09, 2025

This show has been going on for so long that the gang thought they should reintroduce themselves. Kathy, Matt, and Rose start the show talking about the experiences that lead them into a life of clay. They also answer a listener's question about calcining clay. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Kaolin, calcining, Alfred, Connecticut College

Today's episode is brought to you by Cornell Studio Supply and the newly translated Spanish version of Ceramic Materials Workshop The Middle Glazes.

Fluxed Up with Meredith Host Mar 25, 2025

Get ready for a wild ride in the studio with ceramic artist Meredith Host! In this episode of our Fluxed Up series, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Meredith shares about working with decals and layered underglaze, as well as how she had to pivot away from her favorite glaze in the middle of a major commission. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics:

Underglaze, crawling, decals, Kitten's Clear, Cone 6, pattern

Today's episode is brought to you by Cornell Studio Supply and the newly translated Spanish version of Ceramic Materials Workshop The Middle Glazes.

What should we know about cristobalite and quartz inversion? Mar 06, 2025

Cristobalite and quartz inversion are the great boogie men of ceramics, often being used to explain cracking clay, glaze fit issues, and general ceramic mayhem. In this episode the gang sort fact from fiction and explain the changes that silica goes through during firing. They also start the episode talking about Matt's amazing new computer keyboard, which has beautiful celadon-glazed porcelain keys. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Porcelain, celadon, cristobalite, quartz inversion, silica

Today's episode is brought to you by Cornell Studio Supply and the Rosenfield Collection of Ceramic Art.

Fluxed Up with Paul Andrew Wandless Feb 20, 2025

Get ready for a wild ride in the studio with ceramic artist Paul Andrew Wandless! In this episode of our Fluxed Up series, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Paul shares about making casting slips out of dark clay bodies, as well as how he builds with cast slabs for extra strength and durability. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com.

This week's episode features the following topics:

Glaze testing, print making, underglaze, dark clay bodies, slip casting, deflocculation

Today's episode is brought to you by Cornell Studio Supply and the Rosenfield Collection of Ceramic Art.

Are there budget-friendly black and purple glazes? Feb 13, 2025

Have you ever tried to create budget-friendly glazes? It can be hard, especially when you want rich purples and blacks. This week the gang talk about ways to save money in your glaze lab, and how tariffs might affect the supply chain. They also start the episode commiserating on how cold it is this time of year in New England, and what to do if your clay freezes. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Frozen clay, glaze lab, glaze chemistry on a budget, purple, black

Today's episode is brought to you by Cornell Studio Supply and the Rosenfield Collection of Ceramic Art.

How can I measure thermal expansion? Feb 06, 2025

Have you noticed thermal expansion measurements on your clay or glaze recipes? If so you might be wondering what those measurements mean, and how you use them to predict glaze fit on a clay body. This week the gang discuss thermal expansion and why those numeric values aren't always so helpful. They also answer a listener question about glazes with rare earth elements. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Thermal expansion, glaze fit, clay body, rare earth elements, Praseodymium, Neodymium, Erbium

Today's episode is brought to you by Cornell Studio Supply and the Rosenfield Collection of Ceramic Art.

How can I get the best firing out of my new kiln? Jan 29, 2025

New kilns bring lots of excitement to the studio, but also a few questions. Should I calibrate my thermocouple? And, Do I need to adjust my firing rate to my new elements? This episode the gang talk about new kilns, ASTM standards for ware, and the difference between K23 and K26 soft bricks. They also start the show discussing testing methods for glaze durability. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Thermocouple, New Kiln, commercial kiln, K26, K23, bricks

Today's episode is brought to you by Cornell Studio Supply and the Rosenfield Collection of Ceramic Art.

Fluxed Up with Pattie Chalmers Jan 22, 2025

Get ready for a wild ride in the studio with ceramic artist Pattie Chalmers! In this episode of our Fluxed Up series, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Pattie shares a mishap with clay formulation, as well as how she teaches her students at Southern Illinois University Carbondale to be resourceful in the glaze lab. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics:

Wollastonite, material shortage, clay formula, terracotta, earthenware, sgraffito

Today's episode is brought to you by Cornell Studio Supply and the Rosenfield Collection of Ceramic Art.

What's up with all those pinholes? Jan 15, 2025

Pin holes are a pesky issue in ceramics, largely because multiple glaze defects are often called pinholes. The gang talk about the myriad issues with pinholes, and if you can fix them on an already fired pot. They also discuss why commercial glazes have wide firing ranges. They start the show laughing and questioning the existence of removable ceramic stickers. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

pin holes, glaze void, refiring, reglazing, glaze temperature range, commercial glaze

Today's episode is brought to you by Bailey Pottery Equipment and Cornell Studio Supply.

How can I make a speckled clay body? Dec 18, 2024

Speckled clay bodies have come roaring back in popularity and in this episode our intrepid clay experts talk about what you can add to your clay body to create this phenomenon. They also talk about plucking and why potassium fluxes are best for clay bodies. To start the show the gang introduce the mysterious case of the A.I. glaze book. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

As the end of the year approaches, we are asking you to donate to the Brickyard Network. You can help this show and our network of ceramic podcasts by supporting the Archie Bray Foundation with your tax-deductible donation. Thanks so much and happy holidays!

This week's episode features the following topics:

Plucking, ilmenite, clay body, sodium, potassium, glaze books, manganese

Today's episode is brought to you by Bailey Pottery Equipment and Archie Bray Residency.

Do I have to glaze my pieces? Dec 11, 2024

Today's episode features a simple question. Do I have to glaze my pieces? The FFS gang talk about unglazed surfaces, and also discuss what triggers vitrification during firing. To start the episode, they also gab about Producer Ben's new book on low-fire glazes for potters and sculptors. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Low fire, vitrification, underglaze, vitreous slip, terracotta, dunting, glaze tension

How do you make ceramic bakeware? Dec 04, 2024

Have you ever wanted to bake bread in one of your pots? Today the gang answer a listener's question about the best way to make ceramic bakeware. They also discuss a new trend in environmental design and why using sodium fluxes in clay bodies can cause trouble when reclaiming clay. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Bread, Sourdough, bakeware, spodumene, lithium, clay body, reclaim clay

Today's episode is brought to you by Bailey Pottery Equipment and Archie Bray Residency.

Fluxed Up with Osa Atoe Nov 27, 2024

Get ready for a wild ride in the studio with ceramic artist Osa Atoe! In this episode of our Fluxed Up series, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Osa shares her experience with letting go of a favorite glaze combo, and how this encouraged her to explore wild clay terra sigs. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics:

Glaze troubleshooting, bisque temperature, Jen's juicy fruit, terra sig, wild clay

Today's episode is brought to you by Bailey Pottery Equipment and Archie Bray Residency.

Bentonite versus Epsom Salts? Nov 20, 2024

Do you have the hard pan blues when your glazes settle like a rock to the bottom of the bucket? The gang talk about how bentonite and Epsom Salts might solve hard panning, as well as when and how much you should use. They also talk about how to calcine a substance, and why you shouldn't calcine egg shells as a calcium source.

This week's episode features the following topics:

Bentonite, Epsom Salts, calcine, calcium carbonate versus calcium oxide, glaze suspension, glaze settling

For today's episode we ask listeners to donate to the Craft Emergency Relief Fund and their efforts to help artists recover after Hurricane Helene.

Why is this glaze so gloopy? Nov 13, 2024

Have you ever mixed a glaze with the correct amount of water, but it still seems gloopy and thick? If you have then you might need to add a dispersant to help solve this issue. The gang talk about using dispersants, and they answer a listener's question about the robustness of cone six versus cone ten. They also return to Materials Corner to talk about the discontinuation of a popular luster brand.

This week's episode features the following topics:

Gillespie Borate, Bentonite, Darvan, sodium silicate, vitrification, tin, cone six, cone ten

For today's episode we ask listeners to donate to the Craft Emergency Relief Fund and their efforts to help artists recover after Hurricane Helene.

Why do pots get hot in the microwave? Nov 04, 2024

Have you ever noticed how some pots get really hot in the microwave? The gang talk about why this happens, and answer a listener question about coloring reclaimed slop glaze. They also talk about glow in the dark glazes and Rose's recent video about them on the CMW YouTube channel. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Glaze colorants, glow in the dark, microwave, vitrification, Chrome

For today's episode we ask listeners to donate to the Craft Emergency Relief Fund and their efforts to help artists recover after Hurricane Helene.

Fluxed Up with Brett Kern-Happy Halloween! Oct 30, 2024

Welcome to a very spooky edition of Fluxed Up with Brett Kern. Today we dive into the precarious world of ceramics filled with funny stories, studio mishaps, and the quest for the ever-elusive perfect glaze. Join us as Brett shares his journey with slip casting inflatable dinosaurs, using commercial glazes, and dealing with dunting after material changes. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics:

Slip casting, Dunting, Commercial glazes, layering glazes, spraying, luster

For today's episode we ask listeners to donate to the Craft Emergency Relief Fund and their efforts to help artists recover after Hurricane Helene.

How can we help North Carolina? Oct 23, 2024

Have you wondered how you can help support artists affected by Hurricane Helene? This week's show is dedicated to sharing information and resources to assist the North Carolina clay community in rebuilding. The gang talks about assessing damage after a natural disaster, what supply chain issues we expect, and organizations needing support. If you'd like to contribute to disaster relief, please donate to the Craft Emergency Relief Fund at www.cerfplus.org.

This week's episode features the following topics:

Asheville, Marshall, Penland, Highwater Clays, Mudtools, CERF

Today's episode is brought to you by Ceramic Materials Workshop.

Are cone 6 soda fired pots durable? Oct 16, 2024

Atmospheric firing is so much fun! What's not to like about a process where you get to spray soda into a flaming hot kiln. This week the gang talk about the durability of cone 6 soda fired pots, and the process for identifying mystery materials. They also take us behind the scenes to talk about what goes into making videos for the CMW YouTube channel.

This week's episode features the following topics:

Glaze troubleshooting, atmospheric firing, cone 6, soda firing, glaze, flashing slip

Today's episode is brought to you by Ceramic Materials Workshop.

What's so special about a Bristol glaze? Oct 09, 2024

Have you heard of a Bristol glaze? This week on For Flux Sake the gang talk about the chemistry that makes these glazes work. They also discuss the crackle vs. crazing nomenclature, as well as the definition of porcelain. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Glaze troubleshooting, crazing, porcelain, Bristol Glaze, glaze

Today's episode is brought to you by Bailey Pottery Equipment and Archie Bray Residency.

Fluxed Up with Lisa Orr Oct 02, 2024

Get ready for the wonderful and hilarious ceramic artist Lisa Orr! In this episode of our new For Flux Sake segment Fluxed Up, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Lisa shares her journey with making low fired white wares, the influence red iron oxide has on aventurine glazes, and her recent research into Persian luster firing. Also, the gang talk about Lisa's development of the Rocket Kiln, a fast-firing smokeless wood kiln. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics: Glaze Troubleshooting, Rocket Kiln, Studio Stories, Ceramics Confessions, Lisa Orr, Red Iron Oxide, Filter Press, Studio Anecdotes, Behind the scenes, Potter, Ceramic Artist

Today's episode is brought to you by Bailey Pottery Equipment and Archie Bray Residency.

Is that an Oolite? Sep 25, 2024

Have you ever heard of an Oolite? Find out more about this rare and interesting glaze precipitate on this week's episode. The gang also take a trip to materials corner to discuss new potassium feldspars that could replace Custer Feldspar, and answer a question about kiln venting. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Glaze troubleshooting, kilns, kiln vent, Oolite, Custer Feldspar, Potassium Feldspar

Today's episode is brought to you by Bailey Pottery Equipment and Archie Bray Residency.

The agony and ecstasy of Gillespie Borate Sep 18, 2024

Join us as the For Flux Sake gang dive into layering glazes. Have you ever noticed some glazes look better below others, but not on top? Find out why the order you apply them matters and more on this week's episode. We also have a surprise visit and a great question about Gillespie Borate from their #1 superfan Kookie Kane. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

This week's episode features the following topics:

Glaze Troubleshooting, layering, Colemanite, Gerstley Borate, Gillespie Borate, Boron

Today's episode is brought to you by Bailey Pottery Equipment and Archie Bray Residency.

Fluxed Up with Nick Sevigney Sep 11, 2024

Get ready for a wild ride in the studio with ceramic artist Nick Sevigney! In this episode of our new For Flux Sake segment Fluxed Up, we dive into the precarious world of ceramics filled with personal stories, studio mishaps, and the ever-elusive perfect glaze. Join us as Nick shares his journey from porcelain skepticism to newfound appreciation, the impact of the Custer Feldspar shortage, and reveals the trials of handling glaze disasters. Plus, we uncover the joys and frustrations of gallery life and laugh over some truly memorable teaching moments. Tune in for a dose of humor, technical tips, and a behind-the-scenes look at the life of a ceramic artist. Got questions or need advice? Drop us a line at ForFluxSakePodcast@gmail.com

This week's episode features the following topics: Glaze Troubleshooting, DIY, Studio Stories, Ceramics Confessions, Nick Sevigney, Custer Feldspar, Studio Anecdotes, Behind the scenes, Potter, Ceramic Artist

Today's episode is brought to you by Immaterial: 5000 years of Art, One Material at a Time, a podcast from the Met Museum.

Shivering Sucks Sep 04, 2024

We're kicking off Season 4 of For Flux Sake with a bang—or should we say a "ping"? Matt, Rose, and Kathy are joined by producer Ben to unveil some exciting surprises awaiting you in the new season. We're firing up a conversation about shivering, crazing, and all the unpredictable quirks that come with ceramics. Why is your glaze flaking off? Could your firing cycle or even hand sanitizer be the culprit? And what's the deal with delayed crazing? We're here to get to the bottom of your ceramic problems! If you'd like to be featured on a future episode of the show please send your audio questions to forfluxsakepodcast@gmail.com.

This week's episode features the following topics:Shivering, Crazing, Delayed Crazing, Paint your own pottery, Vitrification, Low-Fire Ceramics, Clay bodies, Thermal expansion

Today's episode is brought to you by Immaterial: 5000 years of Art, One Material at a Time, a podcast from the Met Museum.

Can I use paint on my ceramics? Jul 31, 2024

In Episode 72, the gang discuss using acrylic paints on pottery. You'll learn when it's safe to use acrylics and find out the effects of firing temperature on your cold-finished pieces. Also we'll get into pyrometric cones yet again and break down the difference between cones and temperature readings. Why are those last crucial 100 degrees Celsius so important? And finally, we're discussing the benefits of bisque-firing underglazes. Discover how this step can help prevent color bleeding and other potential glaze flaws. Glazing problems? Kiln meltdown? Send your questions to forfluxsakepodcast@gmail.com - you might hear the answer on the show!

This week's episode features the following topics:

Acrylic paint, painted ceramics, ceramic sculpture, cold finish, pyrometric cones, kiln firing, heatwork, temperature, underglaze, glaze flaws

Today's episode is brought to you by Immaterial: 5000 years of Art, One Material at a Time, a podcast from the Met Museum.

Cone packs or cone plaques? Jul 17, 2024

We start today's episode learning why self-supporting cones are crucial for accurate firings, as well as everything you need to know about using cone plaques, from proper placement to reusability. We also delve deep into the world of firing temperatures talking about how to achieve vibrant colors at cone 10 while exploring the influence of alkaline earth fluxes on chemistry. Have you been thinking of substituting feldspars in your glazes recently? Make sure to listen and learn about the importance of finding the perfect feldspar match to balance your glaze chemistry.

Confused about glazes or facing a kiln crisis? Don't suffer in silence! Send the For Flux Sake crew a voice memo or message with your question to forfluxsakepodcast@gmail.com - your problem could be solved on-air!

Today's episode is brought to you by the 28th Annual Bray Benefit Auction.

This week's episode features the following topics:

Pyrometric cones, cones, kiln, firing temperature, firing atmosphere, cone 6 vs cone 10, blue glaze, green glaze, copper carbonate

Does your water source affect glazes? Jul 03, 2024

Listen in as the gang visit Materials Corner to discuss the latest updates surrounding the loss of Custer. Matt also answers a question from a brewer about the source of water that you use in your glazes. The answer might surprise you! Also, Kathy and Rose share how they've both used CMC in glazes and Matt dives into the science behind it.

Today's episode is brought to you by Cornell Studio Supply.

This week's episode features the following topics:

Water, Custer Feldspar, Glaze troubleshooting, CMC, material substitution

Can ceramics be safely used for mixing hair dye? Jun 19, 2024

Listen to episode 69 where Matt, Rose, and Kathy discuss a listener's question about the use of ceramic bowls in the hair salon. Can ceramic be safely used for mixing hair dye? The team delves into the chemistry to determine if these bowls are a safe choice or a potential disaster.

Thinking about going green in the studio? The gang dives into listener concerns about sustainability in a large community ceramics space. Is lowering firing temperatures the answer? What about the materials themselves? Join the discussion as they explore how to strike a balance between eco-friendly practices and keeping a community studio functional.

Today's episode is brought to you by Bailey Pottery Equipment.

This week's episode features the following topics:

Toxicity, leaching, glaze chemistry, glaze flaws, sustainability, eco-friendly, firing temperature, recycling clay, cone 10, cone 6

What's the deal with Shino glazes? Jun 05, 2024

In episode 68, we're getting schooled on Shino glazes! Matt, Rose, and Kathy discuss some of the history, science, and stunning beauty of these unique glazes. The gang also takes a deep dive into the murky waters of water chemistry in glazes. Is it the secret ingredient or a total myth?

We'll also debunk some common misconceptions and explain why getting to know your specific gravity and viscosity is the real key to glaze consistency. Can you substitute tin in your glazes? Spoiler alert- it depends. Join the fun and listen in on the latest episode of For Flux Sake!

Today's episode is brought to you by Bailey Pottery Equipment.

This week's episode features the following topics:

Shino glaze, Japanese ceramics, specific gravity, viscosity, glaze application, glaze troubleshooting, glaze firing, material substitution, tin oxide

Should I be afraid of manganese? May 22, 2024

Clay drama got you throwing shade? We've ALL been there! Join the For Flux Sake gang for episode 67 as we commiserate over inconsistent clay bodies and the woes of surprise firing results. We'll explore the limitations of trying to adjust an existing clay body and glaze to meet your needs and some of the many reasons why commercial clay bodies can vary from batch to batch. Plus, we'll shed some light on the truth about manganese myths. Learn what is and what is not an actual hazard to your health. Don't rage-quit that project yet, listen to the latest episode of For Flux Sake and regain your sanity in the studio!

Today's episode is brought to you by Bailey Pottery Equipment. Bailey Pottery Equipment has everything you need, from beginner to pro. They offer top-notch supplies at discount prices, all backed by friendly service.

This week's episode features the following topics:

Manganese, Toxicity, Absorption rate, commercial clay body, Clay absorption, reformulating clay, reformulating glaze, glaze fit

Glaze Doctors Live from NCECA! May 08, 2024

Listen to Kathy, Rose, and Matt take your glaze concerns head-on in this fired-up live recording from the convention this year! The audience delivered rapid fire questions to the gang so get ready for a hodgepodge of hot glaze conundrums. From water content and adjusting a recipe, to cracking the code on crazing crystals and banishing hard pan pandemonium, they tackled every question that came their way, and then some. Do you think anybody was able to stump them? Listen and find out. A special thank you to NCECA for co producing this episode and for supporting podcasting in the ceramics community.

Today's episode is brought to you by Snow Farm. From June 2nd-7th, join David McDonald for a hands-on workshop on making perfect-fitting lids for your thrown pieces.

This week's episode features the following topics:

Glaze Flaws, Crazing, Crystalline, Crystallization, Glaze Formulation, Raw Materials, Glaze Application, Glaze making tips, NCECA, NCECA 2024

Electric Kiln 101 with Freddy Fredrickson pt. 2 Apr 24, 2024

Listen to the final part of our conversation with the fantastic Freddy Fredrickson, former kiln master at Alfred University and founder of Fredrickson kilns. This episode will have you thinking beyond temperature when trying to get the most out of your kiln during your firings. Is cone 6 truly more energy-efficient than cone 10? Can your thermocouple be the silent hero of your firings? Freddy has answers to all your burning questions (pun intended!) and more!

Glaze got you in a daze? Mystery clay malfunction? Fire up your phone and send the For Flux Sake crew a voice memo or a message with your ceramic crisis at forfluxsakepodcast@gmail.com - your problem could be solved on-air!

Today's episode is brought to you by:

Bray Poxy archiebrayclay.com

This week's episode features the following topics:

Electric Kiln, Cone 6, Cone 10, Cone 6 vs. Cone 10, Energy Efficiency, Energy Efficient Firing, Kiln Troubleshooting, Cones, Kiln Calibration, Kiln Design, Kiln Building, Kiln Efficiency

Electric Kiln 101 with Freddy Fredrickson pt. 1 Apr 10, 2024

Join Matt as he dives deep into kilns with Freddy Frederickson, the legendary founder of Fredrickson Kiln Company. For over 30 years, Freddy wasn't just building kilns at The New York State College of Ceramics at Alfred University, he was perfecting the craft as their master kiln builder. In this first episode of our two-part interview, Freddy shares his remarkable journey. From the evolution of electric kiln technology to filling and firing an even kiln, listen in as he answers some of your burning questions about using your electric kiln.

Today's episode is brought to you by:

Bray Poxy archiebrayclay.com

This week's episode features the following topics:

Electric Kiln, Firing, Kiln, Kiln Troubleshooting, Kiln load, kiln firing

Should I bisque higher than I glaze? Mar 27, 2024

Thanks to everyone who came out to our live taping at NCECA. We had a blast and look forward to airing that episode in a few weeks. Today on the show the gang talk about the effect of mold in clay, bisque firing higher than your glaze temperature, and the wild wild west of slip formulas. If you need assistance with a ceramic chemistry problem, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

Today's episode is brought to you by:

Bray Poxy archiebrayclay.com

This week's episode features the following topics:

Slip casting, Mold, Clay Durability, Glaze Application, Slip Formula, Bisque temperature

How can I make durable floor tiles? Mar 13, 2024

This episode of Flux Sake is a technical delight! Rose and Matt unpack the fascinating world of commercial clay body profiling with Ceramic Material Workshop's ongoing research project. They'll unpack the different tests used and what they reveal about a clay body's performance. Need to know the perfect clay body and glazes for your project? We've got you covered! The gang tackles listener questions on finding durable materials for high-use barware and crafting long-lasting floor tiles. Feeling the spray gun frustration? You're not alone! The episode wraps up with solutions to a clogged spray gun, with insights from Kathy, Rose, and Matt on keeping your glaze application smooth.

Join the Flux Sake Crew Live! Catch the whole gang for a live recording at the NCECA conference in Richmond, VA on Friday, March 22nd at 11 am. Don't miss out!

Today's episode is brought to you by:

Bray Poxy archiebrayclay.com

This week's episode features the following topics:

Food Safety, Functional Ceramics, Utilitarian Ceramics, Dinnerware, Restaurant ware, Clay Durability, Glaze Durability, Coefficient of Friction, Ceramic Tile, Glaze Application, Glazing with spray gun

Should I be afraid of lead leaching? Feb 28, 2024

The For Flux Sake crew is gearing up for NCECA! Tune in to find out their plans and where you can catch them live at the conference. They also dive deep into listener questions, tackling concerns about lead leaching in your kiln from past firings and fish tank safety. Can your ceramic pieces pose a hidden danger for you or your aquatic friends? Learn the facts with us and stay safe!

Got a perplexing ceramic problem? Send the crew a voice memo with your question to forfluxsakepodcast@gmail.com and they might just feature it on a future episode.

Today's episode is brought to you by:

Bray Poxy archiebrayclay.com

This week's episode features the following topics:

Lead, Leaching, Toxicity, Lead Toxicity, Lead Testing, Lead Leaching, NCECA, Studio Safety

What are those symbols on my glaze label? Feb 14, 2024

On today's episode the gang talk about deciphering the labels on your commercial glazes. They also answer listener questions about standard bisquing temperatures in the U.S., and if there is a toxicity risk when using lead glazed wares from the 19th century. If you need assistance with a ceramic chemistry problem, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

Kathy, Matt, and Rose are excited to be participating in this year's NCECA conference in Richmond, VA. Come on out and bring your friends for a live taping of the show on Friday March 22nd at 11 am. Hope to see you there.

Today's episode is brought to you by:

Bray Poxy archiebrayclay.com

How often can I recycle my clay? Jan 31, 2024

On today's episode the gang talk about recycling clay, knowing how hot a slip or glaze can be fired, and tips for running a community studio. If you need assistance with a ceramic chemistry problem, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

As we head into the new year, we are having a comment drive. This is one of the easiest ways to support this show, and the best part is that it's totally free. To participate simply leave a review and a rating for the show on your favorite podcast app. Thanks everyone for listening and supporting the show!

Today's episode is brought to you by:

The Bray www.archiebray.org

Can a glaze flaw be aesthetically attractive? Jan 17, 2024

On today's episode the gang answer an interesting question about the beauty of glaze flaws, as well as discussing fake reduction glazes using silicon carbide and making pots that are durable enough for restaurants. If you need assistance with a ceramic chemistry problem, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

As we head into the new year, we are having a comment drive. This is one of the easiest ways to support this show, and the best part is that it's totally free. To participate simply leave a review and a rating for the show on your favorite podcast app. Thanks everyone for listening and supporting the show!

Today's episode is brought to you by:

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

Can I create atmospheric effects in an electric kiln? Jan 03, 2024

Happy New Year from the For the Flux Sake gang! In today's episode Kathy, Rose, and Matt answer three listener questions about kiln peeps, creating atmospheric effects in an electric kiln, and the best ways to test wild clay. If you need assistance with a ceramic chemistry problem, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

As we head into the new year, we are having a comment drive. This is one of the easiest ways to support this show, and the best part is that it's totally free. To participate simply leave a review and a rating for the show on your favorite podcast app. Thanks everyone for listening and supporting the show!

Today's episode is brought to you by:

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

Do I have to sieve my glazes? Dec 20, 2023

On today's episode of For the Flux Sake the gang answer three listener questions about sieving glazes, burnishing clay, and wiping off bisque. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com. Thanks everyone for listening in 2023. We look forward to having lots of new episodes for you in the upcoming year.

Hello For Flux Sake Listeners! Have you ever wondered what me mean when we talk about the unity molecular formula on the show? The UMF is a great way to understand glaze chemistry, and we talk all about it in our Glazed and Confused class. To show our appreciation for your listenership, we are offering a free lifetime membership to our Glazed and Confused class until the end of December. To sign up for FREE visit www.ceramicmaterialsworkshop.com and use the offer code "UMF" when you sign up. Happy Holidays!

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

The end of an era... Dec 06, 2023

On today's episode the gang talk about the end of Custer Feldspar. How do we all adjust to one of America's most popular, and reasonably priced, feldspars going out of production? Hear more about potential substitutions and the ripple effect this will have on the ceramic community. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

Hello For Flux Sake Listeners! Have you ever wondered what me mean when we talk about the unity molecular formula on the show? The UMF is a great way to understand glaze chemistry, and we talk all about it in our Glazed and Confused class. To show our appreciation for your listenership, we are offering a free lifetime membership to our Glazed and Confused class until the end of December. To sign up for FREE visit www.ceramicmaterialsworkshop.com and use the offer code "UMF" when you sign up. Happy Holidays!

What is the advantage of diversifying your fluxes? Nov 24, 2023

On today's episode the gang answer questions about the rising cost of lithium and the advantages of diversifying your fluxes. They also talk about the slight color shifts that happen in clear glazes. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

Hello For Flux Sake Listeners! Until the end of November, we are offering a 25% discount on our beginner glaze workshop - Glaze of Our Lives. This is one of our on-demand workshops that help people learn about what glazes are, and how they really work. We answer the questions you've always wondered about and smash the ceramic myths you may have been told. Head over to www.ceramicmaterialsworkshop.com and use promo code - forfluxsake (all one word)- at time of check out to receive the 25% discount. Check it out and don't forget to keep on test, test, testing!

Cone six or bust! Nov 08, 2023

On today's episode the gang answer a few questions about cone six, including one about electric kiln temperatures, and another about firing cone 6 glazes to cone 10 in a soda kiln. They also talk about making lava-like effects on clay with vinegar. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

Hello For Flux Sake Listeners! Until the end of November, we are offering a 25% discount on our beginner glaze workshop - Glaze of Our Lives. This is one of our on-demand workshops that help people learn about what glazes are, and how they really work. We answer the questions you've always wondered about and smash the ceramic myths you may have been told. Head over to www.ceramicmaterialsworkshop.com and use promo code - forfluxsake (all one word)- at time of check out to receive the 25% discount. Check it out and don't forget to keep on test, test, testing!

Happy Halloween! From flame ware to the blood bricks of Boston Oct 25, 2023

On this extra spooky episode of For Flux Sake, the gang talk about flame ware, the best length of time to mix casting slip, and fast firing manual kilns. They also share a mysterious tale about the blood bricks of Boston. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com.

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

Hello For Flux Sake Listeners! Until the end of November, we are offering a 25% discount on our beginner glaze workshop - Glaze of Our Lives. This is one of our on-demand workshops that help people learn about what glazes are, and how they really work. We answer the questions you've always wondered about and smash the ceramic myths you may have been told. Head over to www.ceramicmaterialsworkshop.com and use promo code - forfluxsake (all one word)- at time of check out to receive the 25% discount. Check it out and don't forget to keep on test, test, testing!

How can I tell if my matte glaze has fully melted? Oct 11, 2023

This week on the podcast the gang talk about the chemistry of raku glazes, the prevalence of cone 8 in European ceramics, and the intricacies of a fully melted matte glaze. They also share fun facts about Prisma color pencils and their use in ceramics. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com. To see the supplemental info we talked about in this episode, visit Ceramic Materials Workshop.

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

What does wedging actually do to clay? Sep 27, 2023

Today the gang discuss three questions about clay, including what actually happens when you wedge. They also talk about the ever-evolving situation with EPK. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com. To see the supplemental info we talked about in this episode, visit Ceramic Materials Workshop.

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

What's the best way to test clay absorption? Sep 13, 2023

Welcome back for season three of For Flux Sake! Today the gang talk about fast firing, the best way to do an absorption test, and a pair of kiln questions about thermocouples and electricity types. If you have a ceramic chemistry problem you'd like help with, send us a voice memo with your question to forfluxsakepodcast@gmail.com. To see the supplemental info we talked about in this episode, visit Ceramic Materials Workshop.

Our friend Paul Blais, host of The Potters Cast, was recently in a bad accident. There's a Go Fund Me to help support his family during his recovery. We wish him a speedy recovery.

Today's episode is brought to you by:

AMACO Brent www.amaco.com

The Rosenfield Collection of Functional Ceramic Art www.Rosenfieldcollection.com.

The Bray www.archiebray.org

Season 3 coming soon! Sep 08, 2023

Your favorite glaze nerds are back for season three of For Flux Sake! New episodes drop every other Wednesday starting this week. If you have a question about ceramic chemistry send us a voice memo at forfluxsakepodcast@gmail.com.

See you soon!

Our TOPPODCAST Picks

Follow Us

Stay Connected

Related Podcasts

Links

Stay Connected