Whey protein powder keeps its quality for about 12 to 18 months at room temperature. See how long an opened tub lasts, how to tell it has gone bad, and how long a mixed shake keeps in the fridge.
Whey protein powder keeps its quality for about 12 to 18 months at room temperature. See how long an opened tub lasts, how to tell it has gone bad, and how long a mixed shake keeps in the fridge.