Whey, in the form of either whey powder or so-called whey derivatives, can be used to make a variety of foods. Whey powder is the product of dehydration through a processing of steaming and drying. The resulting powder is the oldest and most widely used whey product. It contains the same concentration of substances as the whey in its original form, with its main constituent being lactose (at over 70 percent).
The term "whey derivatives" refers to all whey products, the individual components of which have been either enriched, separated or isolated. Any such products will have undergone a technical process of separation.
