Chemistry For Your Life

Latest Episodes:

Why do skunks smell so bad? (and is there anything we can do about it?) Oct 29, 2026

Show notes

What makes skunk spray smell so astonishingly bad, and why can the odor come roaring back whenever a sprayed dog gets wet? Are humans unusually sensitive to skunk smell? Does tomato juice actually remove it, or have cartoons been lying to us for decades? In this spooky episode, Melissa and Jam investigate skunk spray, sulfur compounds, olfaction, odor removal, and the chemistry behind a smell that simply refuses to die.

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Timestamps

00:00 – A spooky question: Why do skunks smell so bad?
02:43 – The listener question that inspired the episode
04:33 – The chemical family hiding inside skunk spray
08:46 – Why our noses are incredibly sensitive to sulfur compounds
11:38 – How skunks weaponized a smell mammals already hate
12:43 – Why skunk odor can return when it gets wet
17:00 – Drawing out the surprising water-triggered reaction
21:07 – Jam’s teach-back: skunk chemistry explained
31:11 – Does tomato juice actually remove skunk smell?
32:55 – What chemistry suggests might work instead
34:44 – Skunk species, warning signs, and spray strategy
37:58 – Melissa’s baby-skunk rescue and other skunk encounters

References from the Episode:

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Ask a Chemist: How long do you microwave ice cream? (and other questions) Oct 22, 2026

Show notes

Why does microwaving ice cream for two five-second bursts feel different from microwaving it once for ten seconds? Can a science podcast make chemistry accessible without accidentally wrapping complicated ideas in answers that feel a little too neat—and what do seeds know about light that we don’t? Melissa and Jam tackle those questions along with protons versus neutrons, refrigerant patents, leaded gasoline, and an important conversation about unexpected ads. It’s a Q&R episode featuring chemistry off the cuff, educational soul-searching, listener corrections, and an unusually serious investigation into optimal ice cream texture.

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Timestamps

00:00 — Melissa turns the questions on Jam
00:42 — How long should you microwave ice cream?
02:09 — Why two five-second bursts differ from ten continuous seconds
06:43 — How melting and refreezing changes ice cream’s texture
08:25 — Is the podcast making chemistry too easy?
11:00 — Do analogies encourage curiosity or provide overly tidy answers?
17:51 — Jam’s perspective as the podcast’s non-chemist learner
20:15 — Why “that’s just how it is” can end scientific inquiry
25:52 — How can seeds detect light through soil?
31:37 — Yes, Melissa knows the difference between protons and neutrons
35:15 — Patents, leaded gasoline, and the refrigerant industry
37:26 — An important note about gambling ads and podcast platforms

References from the Episode:

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Is personification helpful or harmful in science? Oct 15, 2026

Show notes

Do atoms “want” full electron shells, do molecules “prefer” stability, and are electrons really “attacking” each other? Or could it be that while personifying molecules might be quietly teaching us the wrong ideas? Chemistry education researcher Jessie Stenlund joins Melissa and Jam to investigate anthropomorphism, analogies, scientific language, and why a satisfying explanation isn’t necessarily an accurate one. Along the way, Melissa reckons with learning that one of her strongest teaching opinions might need revisiting.

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Timestamps

00:00 — Melissa discovers she may have been teaching something wrong
00:52 — Meet chemistry education researcher Jessie Stenlund
04:17 — Why does iron rust?
08:59 — What counts as anthropomorphizing molecules?
11:09 — Why personification makes chemistry easier to learn
15:17 — When chemistry’s official language already sounds human
18:49 — How personification can confuse cause and effect
24:58 — Oversimplification, unfalsifiable claims, and chemical evidence
34:07 — When scientific shorthand replaces real understanding
36:52 — Do students think atoms and molecules are alive?
40:48 — Can satisfying explanations stop us from asking questions?
47:35 — Are electrons really “attacking” other molecules?
52:09 — How to personify chemistry more responsibly
57:00 — Finding the right balance for different learners

References from the Episode:

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Is science always right? Oct 08, 2026

Show notes

Rebroadcast #068

This week we issue a correction, joining other science publications issuing the same correction. That's kind of an obvious answer to the question of "Is science always right?" So in this episode we explore that question, as well as what happens when science isn't right. And why that's NOT a bad thing.

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References from this episode

https://www.acs.org/content/acs/en/pressroom/reactions/videos/2019/citrus-scent-debunked.html
https://onlinelibrary.wiley.com/doi/full/10.1111/jfq.12226
Chemistry by Julia Burdge

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Can leftovers be healthier than freshly cooked food? Oct 01, 2026

Show notes

Can cooking pasta, rice, or bread, and then cooling it down, actually make it healthier? Could yesterday’s leftovers affect your blood sugar differently than a freshly cooked meal, or is this just another nutrition “hack” invented by the internet? Melissa and Jam investigate starch, glucose, insulin, digestion, crystallization, and the surprising chemistry that happens while your food sits in the fridge. Plus, the whole thing somehow turns into a Lord of the Rings battle involving glucose, hobbits, and ents, because of course it does.

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Timestamps

00:00 — Can cooking and cooling starch make it healthier?
03:52 — Why bread, pasta, and rice get a bad reputation
04:36 — Starch: a polymer made from glucose
07:03 — How glucose, insulin, and blood sugar work
09:25 — The internet’s cook-cool-reheat claim
12:14 — What crystallization has to do with leftovers
14:43 — How starch changes as cooked food cools
15:48 — What is resistant starch?
17:20 — Studies on reheated bread, rice, pasta, and potatoes
19:51 — Resistant starch, fiber, and your gut bacteria
21:26 — Can repeated reheating make even more resistant starch?
23:14 — Jam explains resistant starch using Lord of the Rings
30:44 — A free food hack with actual science behind it
34:49 — Melissa and Jam’s favorite starchy meals

References from the Episode:

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Ask a Chemist: What is "natural gas?" (and other questions) Sep 24, 2026

Show notes

What’s actually flowing through the “natural gas” pipes connected to your home—and did we get something wrong in our air-conditioning series? Which careers can an organic chemistry student pursue, how do topical pain-relief gels work, and what could make a successful HIV medication suddenly stop working? Melissa and Jam answer listener questions, revisit past episodes, correct the record, and stumble into a genuinely fascinating pharmaceutical mystery. Plus, could more chemistry history and chemistry-education stories be coming to the podcast?

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Timestamps

00:00 — Another round of listener chemistry questions
02:04 — Correction: methane, propane, and household natural gas
04:01 — How European AC systems handle propane safely
05:47 — Could more chemistry-education episodes be coming?
07:33 — The overlooked women and stories of chemistry
09:20 — What careers involve organic chemistry?
12:20 — A science teacher tackles the chemistry Praxis exam
13:38 — Do apples and human skin use the same protective pigment?
15:22 — Resources for learning organic chemistry
16:32 — How do topical pain-relief gels work?
19:35 — The HIV medication that suddenly stopped working
20:52 — How one crystal can transform an entire batch

References from the Episode:

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Is red light therapy real or a scam? Sep 17, 2026

Show notes

Can shining a red light on your face really improve acne, wrinkles, inflammation, or wound healing, or is red light therapy just an expensive skincare scam involving a slightly alarming mask? How could ordinary visible light affect cells beneath your skin, and should you trust the products filling your social media feed? Melissa and Jam investigate photobiomodulation, mitochondria, collagen, blue light, FDA clearance, and the research behind this increasingly popular wellness trend. The answer is more scientifically interesting, and more complicated, than either of them expected.

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Timestamps

00:00 — Is red light therapy real or a scam?
03:41 — How light transfers energy to molecules
06:24 — Is red light therapy actually infrared?
08:03 — How deeply can visible light penetrate your skin?
09:34 — What red light may do inside your mitochondria
12:00 — Oxygen transport and other possible mechanisms
13:39 — Could red light trigger collagen production and healing?
16:26 — What scientists know—and still don’t understand
20:45 — Red light, blue light, inflammation, and acne
30:03 — The major problems with current red light research
33:20 — What FDA clearance does—and doesn’t—mean
35:20 — How to evaluate a red light therapy device
40:04 — So, should you buy a red light mask?
44:06 — A new series idea: Is it a scam or is it chemistry?

References from the Episode:

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What the heck is going on inside microwaves? Sep 10, 2026

Show notes

#007 Rebroadcast

Melissa finally explains to Jam how microwaves work after making him wait for an entire week. What the heck is going on inside microwaves? How does it do it's thing and make our food tasty? Is it magic?

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Which chemistry lessons will we never forget? (Happy Chemiversary!) Sep 03, 2026

Show notes

What happens when a chemist and a non-chemist make a podcast together for seven years? Which chemistry lessons stuck, which episode ideas spectacularly refused to cooperate, and does Jam still count as a layperson after all this time? Joined by returning guest Claire, Melissa and Jam celebrate the seventh anniversary of Chemistry For Your Life with listener questions, behind-the-scenes stories, friendship reflections, favorite science facts, and one very large chemistry cookie cake. Come for the chemiversary; stay for the long-running argument about reality TV.

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Timestamps

00:00 — Celebrating seven years of Chemistry For Your Life
01:01 — Special guest Claire—and a chemistry cookie cake
03:04 — Nearly two million downloads and meeting listeners in real life
06:05 — What has the podcast done that Melissa and Jam never expected?
10:34 — The biggest surprises about making a podcast
16:35 — What has changed most over the past seven years?
18:30 — How the podcast changed Melissa and Jam’s friendship
25:24 — What would their past selves think of the show today?
27:24 — Episodes and guest collaborations that never panned out
35:02 — How has Jam used seven years of chemistry in everyday life?
39:09 — Is Jam still a chemistry layperson?
47:40 — Which chemistry concepts are hardest for Jam to understand?
52:12 — Their favorite things they’ve learned from the podcast
01:04:06 — Where do they hope to take the show next?

References from the Episode:

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Can water air-condition your house? Aug 27, 2026

Show notes

What exactly is a swamp cooler, and why can it beat the heat in Arizona but leave you sweaty and betrayed in Houston? How can an air conditioner run on water, what does humidity have to do with its effectiveness, and could an icy new invention help prevent overloaded power grids? In the final installment of our air-conditioning series, Melissa and Jam explore evaporative cooling, ancient climate-control tricks, and some promising innovations for a hotter world. It turns out “It’s not the heat, it’s the humidity” is more scientifically accurate, and more annoying, than we’d like.

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Timestamps

00:00 — The happier finale to our air-conditioning trilogy
00:37 — What exactly is a swamp cooler?
02:34 — How water can be used as a refrigerant
04:16 — The benefits and drawbacks of evaporative cooling
06:26 — Why air can only hold so much water
08:08 — How much can a swamp cooler lower the temperature?
08:56 — Why swamp coolers only work in certain climates
09:47 — Are refrigerants basically reusable sweat?
12:55 — Jam explains the complete swamp-cooler process
15:45 — Ancient evaporative cooling technology
17:19 — Could swamp coolers affect indoor air quality?
18:40 — An ice-slurry air conditioner designed to relieve the power grid
25:06 — Could underground temperatures heat and cool our homes?

References from the Episode: