Expiration & Storage Tips
When does whey protein powder expire?
Whey protein powder typically comes with a best by date printed on the packaging, which is generally 1-2 years from the manufacturing date. However, if stored properly, unopened whey protein can last several months beyond the best by date. Once you have opened the container, it is recommended to consume the powder within 6 months for optimal freshness although it can still be safe to consume for up to a year. If mixed with liquid to form a shake, it should be consumed immediately or refrigerated and used within 24 hours. Freezing is not typically needed or recommended for preserving whey protein powder.
How do you tell if whey protein powder is bad?
To identify if whey protein powder has gone bad, first check the appearance and texture. Good whey protein powder should be fine and smooth. If you notice clumps even after stirring or shaking, that could be a sign of moisture contamination. More importantly, give it a good smell. Whey protein gone bad often emits an unpleasant, sour odor. If you detect any strange, off-putting smell, it's best to throw it away. Finally, you can taste a small amount. If it tastes sour or off, it's likely spoiled.
Tips for storing whey protein powder to extend shelf life
• Always store your whey protein powder in a cool, dry place out of direct sunlight. Heat and sunlight speed up degradation, reducing the shelf life of the protein.
• Always tightly seal the lid after every use to prevent exposure to air and moisture. A sealed container keeps the protein fresh and prevents cross-contamination with other substances.
• Always use clean, dry scoops or utensils to prevent the introduction of any moisture or contaminants in the powder.
• If the original package is damaged or doesn't seal well, consider transferring the powder to an airtight container.