Question about protein (powder, liquid, etc..)

[starfishwish 129]

Good morning everyone, I have a question about Protein powders and liquids. I've been doing some reading and research but this is not something I've used before. Since most of them are whey based and/or contain milk derivatives and products, what is the shelf life? For example, post-op, I will only be drinking two ounces at a time, to start. If I'm using a premixed Liquid Protein drink, how long will it last in the refrigerator once I open it? I think the containers are about 16 oz. that could last days. Also, adding Protein Powder to things like Jell-O and pudding that I would pre make in 2 ounce containers. How long will that protein be good in the refrigerator prepared like that? I hope I'm making sense

I honestly would have never of thought to ask this question, but I bought the Isopure zero bottles, to try, and I drank half of one bottle closed it and put it in the refrigerator and when I went to drink it the next day it smelled rancid. I don't know if I just got a bad bottle, or if it wasn't supposed to be refrigerated again after I opened it and drank half. Any opinions or experience on this would be appreciated!

[AprSleever 6]

Bacteria grows the fastest in high Protein moist environment. I prob wouldn't recommend pre making protein pudding in large quantities unless you plan on freezing them. I just remember trying to wash my Blender Bottle after after drinking protein powder. It's disgusting!!