I would like to make the Ultrafrothy Milk Shake on page 89. The recipe states to "To avoid any unpleasant flavor, use only high-quality, DEODERIZED whey protein isolate" . I have never heard of deoderized whey protein isolate, but I can say that I have had some which left an unpleasant aftertaste which is what I'm guessing they are referring to here. Does anyone know of a brand name that I could look for? Or do I just go to my local health food store and ask for this product? And if I do, will the product state that it has been deoderized (whatever that means)?