It’s best to not consume the protein powder in this condition. How Long Do Sprinkles Last? Can Protein Powder Expire? If the protein powder has an unpleasant smell, then it might have gone bad. Excerpt: I found a full case of whey protein, it has to be 8-9 years old, it was in an unopened box, 4- 5lb bottles w/ the plastic security ring, I know it has an expiration date, but this has been in the unopened box. Source(s): https://owly.im/a0nvt. The short answer is yes, but not easily. The factors are many and include unknowns such as: If you’ve bought a few more containers of whey than you needed at a time, the question “does whey protein go bad?” came up right after that realization. Here are some tips to recognize spoilage and how to store. While the label offers many important facts about the protein (including nutrition, ingredients, manufacturing process, etc. Although whey protein can go bad, its shelf life is pretty long if you store it properly. Let us make your judgment easy, by pointing the things to consider while using the whey protein powder post expiration date. Sure, it has an expiration date right there on the tub. Protein powder can last for a year beyond a best-by date if stored properly. Milk goes bad, whey goes bad. When it comes to open whey protein, it should last for at least 3 to 6 months after the best-by date. The short answer is: stored under the right conditions, it is very likely you be safe to use as much as a couple of years past the date stamped on the tub. Other sources include casein (also from milk), soy, egg white, peas, rice, hemp, collagen, etc. Lv 7. I thought of it like you once, I had whey protein sitting in my cabinet for a few years because I forgot about it, it was on the back thats why I didnt notice it. You May Not Have to Dispose of Your Expired Whey Protein. The following are some signs that indicate unusable whey protein: To conclude, whey protein is an essential supplement for the body, especially for athletes and bodybuilders. If there are clumps on the whey protein, then it can be a sign of growing mold. Yes, it can. As a consumer, you should be careful about consuming protein powder that has passed the expiration dates. You did check for an expiration date, right? Jan 10, 2008 #7 It contains milk products. However, if you are responsible in how you handle and store your whey protein, you may be able to continue its use well past a year after the expiration date. Wait, so can protein powder expire? if it's been stored in a cool dry place, i'm sure it's good. Expiration dates should not be taken lightly. Although whey protein has many benefits, it does come with quite a few side effects as well. All supplements expire, including protein powder. Whey is the yellowish liquid that is leftover after milk is curdled. Does Whey Protein Expire? Simply that, i know it has an expiration date, but does it actually go bad? Yes. 07-19-2013, 06:34 PM #16. "All forms of protein powder have an end of shelf life, and can expire," says Richards. If the protein powder has expired or stored incorrectly, it’ll give out the rancid smell, taste bitter, become yellow or clumped up. While rice protein powder does last a very long time, it does lose its protein efficiency in time. "All forms of protein powder have an end of shelf life, and can expire," says Richards. Does whey protein expire and how to find that? The majority of protein powders have about 2 years of shelf life when stored according to instructions. If you notice anything unusual after preparation, like an off smell or bad taste, throw it away. Whey Protein Expire. As with all kinds of consumable products, both natural and processed, whey protein powder has a shelf-life. “Like pretty much any food, protein powder can really expire,” she says. 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