Discover and read the best of Twitter Threads about #Thermo
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New thread! Now that we’re on a #FoodSci roll, let’s talk rolls! #1/16 
I want to use my rolls as an excuse to talk about my favorite #FoodSci & #Thermo concept, that’s right, it’s water activity (aw) time! 2/16
Brief recap: water activity is the thermodynamic activity of water in a mixture. It’s related to (but not exactly) the molecular-level concentration of water in the mix. It’s 1.0 for pure water, then less for mixtures, 0 for things w/o water #FoodSci 3/16
