How long does protein powder stay good once opened?

Unopened, protein powder will generally stay good for about one year. After about one year, the protein powder begins to lose some of its nutritional and flavor-enhancing properties. This is because the protein can become rancid, and as the protein powder decomposes, the nutritional value is reduced.

How long do you store protein powder?

A simple rule of thumb is that you should store protein powder at room temperature or in the refrigerator. However, you should only store it for as long as you opened it. Protein powder that has been sitting around for a few days is not only harmful to your health but also to the quality of the powder as it degrades.

How long should protein powder stay good?

The stability of protein powder is related to the type of protein it is made from. Whey protein is known to have the best stability, retaining more than 85% of its nutritional value after six months when stored at room temperature. Other proteins, like plant-based proteins, are less stable and retain about 65% of their nutritional value after the same time.

How long does whey protein stay good once opened?

The best answer to this question is that it depends on the quality of the product you purchased. Many brands of pre-packaged whey protein stay good for several weeks after opening, while those that aren’t sealed properly can quickly go bad. If you’re looking to avoid having to buy a whole new batch of protein powder after opening, check to make sure that your protein isolate or hydrolysate is sealed properly.

How long does protein powder stay fresh?

The protein powder is sealed in a bag, so you don’t have to worry about it drying out. However, once opened, the powder will lose some of its freshness. A good protein powder will last about two to three weeks after opening.