So, how long does protein powder last once opened? Unfortunately protein powder does eventually expire, but it does last a long time.

Yes, whey protein powder does lose its protein efficiency and expire, but it lasts a good long while when stored correctly.

In short, protein powder should be considered expired when the manufacturers expiry date is exceeded.

Plant protein powders can cast for an extremely long time, perhaps even as long as a couple of years.

All protein powder loses its efficiency and can spoil over time, but in general egg protein powder lasts for a long time.

Yes, all protein powder can expire and spoil, but they do last a good long time first.

While rice protein powder does last a very long time, it does lose its protein efficiency in time.

Yes all protein powders expire, but vegan protein powders can last sometimes up to two years.

All protein powders degrade over time and beef protein powder is no different.

We would recommend disposing of soy protein powder after its manufacturers expiry date has been exceeded.