Cheddar Cheese Sauce: Whey

Whey is a liquid byproduct of cheesemaking. It is the watery part of milk that separates from the curds during the process. Whey can be further processed into whey powder, a common food ingredient.

Whey is often added to processed foods as a source of protein and to improve texture and flavor. It functions as a binder and emulsifier, helping to keep ingredients mixed together. It is commonly found in baked goods, dairy products, and sauces.

Whey is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of high-quality protein and contains various bioactive compounds. International bodies like JECFA have evaluated whey, and EFSA has also reviewed its safety. At typical dietary levels, it is not associated with adverse health effects.