Question:
How long are protein drinks stable - the protein of use to us?

I found out that I can mix my protein extra concentrated and use it in my coffee (yes, I know I shouldn't drink coffee, but it's one of my few remaining joys - although this diminishes that joy.) Can I mix up enough for a week are at least several day? THanks for your response - oh yes, if this posts twice - its because I asked the same question 5 hours ago but it hasn't cleared so don't know if it was lost in the never never land of the internet. THanks -    — Krista L. S. (posted on January 13, 2002)

January 13, 2002
2 things you need to be aware of. If you are using whey protein, the protein loses its composition if mixed with hot water. Also it begins to form bacteria after 30 minutes so it should be made fresh and consumed within 1/2 hour if possible. Not sure on soy protein.
   — Kimberly L.