This week Reactions delves into the surprisingly complex chemistry behind coffee. The science runs deep in this one. The chemistry of the universe is, in a way, in your morning cup of coffee — from the evolution of caffeine as a defensive chemical weapon in plants to the swirling eddies of milk and coffee fueled by diffusion, Brownian motion and other phenomena. After watching the video, you’ll never look at coffee the same way again.

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Writer:
Sam Lemonick

Host/Executive Producer:
Adam Dylewski

Video Producer:
Sean Parsons

Scientific consultants:
Darcy Gentleman, Ph.D.
Kyle Nackers
Andy Jorgensen, Ph.D.

With thanks to Richard Feynman

Music:
Broke for Free – Wash Out (via Creative Commons)
https://soundcloud.com/broke-for-free/broke-for-free-wash-out

References:
https://www.chemistryworld.com/feature/chemistry-in-every-cup/1012386.article
http://www.compoundchem.com/2015/02/17/coffee-aroma/
http://www.ift.org/~/media/KnowledgeCenter/Publications/Books/Samples/IFTPressBook_Coffee_PreviewChapter.pdf
http://www.thegoodscentscompany.com/search2.html
http://www.nytimes.com/2015/10/19/science/the-caffeinated-lives-of-bees.html
https://www.brainpickings.org/2014/01/06/the-universe-in-a-glass-of-wine-feynman/

Ever wonder why dogs sniff each others’ butts? Or how Adderall works? Or whether it’s OK to pee in the pool? We’ve got you covered: Reactions a web series about the chemistry that surrounds you every day.

Reactions is produced by the American Chemical Society.