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Didn't Believe There Were Microplastics in Gum So I Tested My Spit

In March of 2025, scientists announced they'd found microplastics in 10 brands of chewing gum, including five brands of so-called “natural” gum. Watch as George tries to replicate this result, clogging filters, decanting liters of spit, and burning things that shouldn’t be burned.
Season 11 Episode 11 Length 15:15 Premiere: 10/22/25

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Season 11 Episodes

Making Citric Acid at Home is Easy (EMOTIONAL DAMAGE)
S11 E13 Length 16:29 Premiere Date 12/31/25

I Used DNA to Fireproof Fabrics
S11 E12 Length 08:34 Premiere Date 12/04/25

Didn't Believe There Were Microplastics in Gum So I Tested My Spit
S11 E11 Length 15:15 Premiere Date 10/22/25

Is Water Magnetic?
S11 E10 Length 08:46 Premiere Date 09/17/25

Liquid Marbles are the Coolest Scientific Breakthrough I've Made (So Far)
S11 E9 Length 11:15 Premiere Date 08/06/25

Exposing Fake Honey Using Carbon-13
S11 E8 Length 12:00 Premiere Date 07/03/25

George Figures Out Static Electricity
S11 E7 Length 20:29 Premiere Date 06/05/25

The Performance Enhancing Drug They Can't Ban
S11 E6 Length 11:25 Premiere Date 05/15/25

Why Norway's Osmosis Power Plant Failed
S11 E5 Length 08:10 Premiere Date 04/09/25

Hot Water Freezes Either Faster or Slower Than Cold Water
S11 E4 Length 13:59 Premiere Date 03/26/25

Why a Carbon Capture Breakthrough Will/Won't Save Us
S11 E3 Length 09:56 Premiere Date 02/26/25

What the Research Actually Says About Fluoride in Drinking Water
S11 E2 Length 14:50 Premiere Date 02/12/25

How an HIV Miracle Drug Vanished
S11 E1 Length 09:47 Premiere Date 01/22/25

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