so i am entering police academy. i get a 10 minute break every hour, but i am only allowed to drink water in the classroom. saturday class is 0800-1700. now i know i get a lunch break, but if i would like some extra calories during my break, can i blend a weight gainer shake at 0700 and have it last throughout the day, or does the protein eventually become denatured like creatine does? obviously i won't have access to a blender while i'm in class. i guess i can protein bar it, but they're more expensive, and class is going to set me back a bit.