Whey powder can remain in excellent condition for at least 24 months, if prepared and stored under optimal conditions.
However, exposure to a number of adverse conditions during shipment and storage can lead to defects in whey powder - for example colour change, loss of solubility, pH changes etc.
** Refer to the article attached which can be used as a guide to identify and eliminate defects in whey products, which can lead to shorter shelf life.