Whey Protein

So I mix protein powder with some soy milk, and pour it in a bottle. I’ll have to drink it after practice, which will make it about 5 hours unrefrigerated. Will it spoil?

5 hours unrefrigerated should not be a problem. I used to carry it in a "Tupperware" tumbler – pack it at 8 a.m. in the morning and drink it around 1 p.m. It was not refrigerated. It does taste good. Beyond 6 hours, I have my own doubts. It could get spoiled.

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