Whey Expiration Dates

I have found a place to buy designer whey protein water. The problem is it says best buy date april 2010. I was wondering how long the whey remains effective after expiration. I have used expired whey that was 3 months old with no problem but a year seems a little wrong. Just wondering if anyone had any thoughts. Thanks all.

as long as it is SEALED and NOT ROTTING you’re fine

much appreciated MAF

I beg to differ. With meat and dairy-related products like whey I wouldn’t risk it. Especially since it’s been a whole year!