T Nation

How Long Does Whey Last in Liquid?


#1

If I were to mix a bunch of whey protein in the morning with milk, how long would it last? I think I read somewhere that whey will start to break down after mixing after X hours and then will not be useful to the body.


#2

Well, seeing as it's extracted from milk in the first place, I doubt that mixing it with milk is going to do anything.


#3

no, standard whey will be fine doing that... how long it would last (as in a reasonable amount of time before bacteria/germs would be significant) depends on the conditions though.

is it refrigerated? room temp? a lot of air in the bottle (more air = more oxidation = easier for bad stuff to grow)? etc


#4

Yes refrigerated. I would probably fill half of my 32 oz. bottle.


#5

You will be fine within any reasonable time (days).

Even creatine is surprisingly stable in an aqueous environment.


#6

well if you have enough time you could freeze it then take it out and let it thaw until you want it...