arakboss

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I have a large container of Whey Protein Powder that has a March 2022 expiration date but has been open for over a year. How long will whey protein powder typically last once the seal is broken?


Edit: I just mixed up a spoon full in some water and it still taste as nasty as when I first opened it so it should be good to go.
 
Last Edited:
Edit: I just mixed up a spoon full in some water and it still taste as nasty
I find they all taste nasty when mixed with water...milk drinker here. With three of us in the house that use protein powder it doesn't expire, even when purchasing a few Costco size bags when they go on sale. We keep some milk powder around in case we would like better flavor when the zombies show up though. :D
 
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It definitely gets worse when it sits. A brand new jug is delicious, a month old stale jug is drinkable but not desirable. You just need the right brand and flavor along with mixing base at your preferred temperature. I find straight water base tastes much better warm and mixes better.
 

erikjill

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I have a Costco-sized bag of whey powder that expired about 3 years ago. I've been using it for the last few months, mixed with milk ( about 4 scoops/week) and it tastes no different than the new stuff. No ill effects at all.
 

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