The shelf life of rice protein powder can vary depending on the brand and the storage conditions. Rice protein powder generally has a shelf life of 2-3 years if stored properly.
To maximize the shelf life of rice protein powder, it is important to store it in an airtight container in a cool, dry place, away from direct sunlight and heat. Refrigeration is not necessary or recommended. Storing in a refrigerator can cause condensation to form which can cause your protein powder to spoil. Avoid storing rice protein powder in a humid environment, as moisture can cause it to spoil.
It's also a good idea to check the expiration date on the package, as well as the color and odor of the powder, to determine if it is still fresh and safe to consume. If you notice any signs of spoilage, such as discoloration, an off odor, or a change in texture or taste, it is best to discard the powder and buy a new container.