Hey…I have mixed some Grow! Whey into peanut butter as a homemade power butter type deal. Anyone know how long I can keep this in the jar? I know you should drink protein shakes within the day you mix them…is that the same for the peanut butter whey mix?
I Also do that with ON Whey but I just do a scoop at a time with a tebelspoon of Natural Peanut butter! I dont think you should leave it for beyond the day. However if its in the fridge it might be ok?