Did you know that the average cup of coffee is actually 98 percent water? In the video below, Wired magazine explores what's in the other two percent. Some of the compounds include2-ethylphenol, which is actually a pheromone in cockroaches,, and trigonelline, which gives coffee its earthy taste. And of course, there's caffeine.
Learn about what you're drinking:
[h/t Eater]
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