Stains.

Thanks to Tide for sponsoring this episode and for their scientists' time in talking to me. That was very nice.

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Mary Roach's wonderful book "Gulp":
https://www.amazon.com/Gulp-Adventures-Alimentary-Mary-Roach/dp/0393348741

Enzymes in detergents:
http://www.academicjournals.org/app/webroot/article/article1380713950_Hasan%20et%20al.pdf

More on surfactants:
http://www.essentialchemicalindustry.org/materials-and-applications/surfactants.html

**Credits**

Patreon EPs: Star Melody, Ian Chi, Arsalan Noorafkan, Peter Buekering, Andrew Klein

Directed/Hosted/Edited by Jake Roper

Camera by Jack Merline

Research by Scott Frank

Próximo episódio

S01E173 - Could You Survive The Movies? - Official Trailer