How Long Can You Store Whey

According to the most recent research, protein powders like whey protein powder have a shelf life of nine to 19 months when stored under normal conditions. These normal conditions are defined as 70°F and 35% humidity. If a protein contains additives, that can extend the shelf life for up to two years.

Does whey really expire?

Based on the available research, whey protein powder has a shelf life of 9–19 months when stored under normal conditions. Most protein powders contain additives that extend the shelf life for up to 2 years.

Does whey go bad in the fridge?

This source suggests that you can keep it for six months in the fridge!