When you go to
buy whey protein, you'll notice there are a few different types:
whey protein concentrate, isolate and hydrolysate (aka hydrolyzed
whey protein).
However, you need to keep in mind that heat denatures
protein, so if you intend to cook with it,
buy a cheaper
concentrate, and not an isolate (these
whey proteins are manufactured with a cold - filtered ultrafiltration process that leaves vital fractions intact.