Whey powders are dairy products, manufactured by spray drying whey or milk plasma. Whey is a co-product of cheese or casein production. It is one of the components which separates from milk after curdling and straining, when rennet or an edible acidic substance is added. Sweet whey is manufactured during the making of rennet types of hard cheese like Cheddar or Swiss. Acid whey (also known as "sour whey") is obtained during the making of acid types of cheese such as cottage cheese.advantage is that they do not have to do their own blending, purchasing of the different ingredients, quality control etc.

Whey powders are dairy products, manufactured by spray drying whey or milk plasma. Whey is a co-product of cheese or casein production. It is one of the components which separates from milk after curdling and straining, when rennet or an edible acidic substance is added. Sweet whey is manufactured during the making of rennet types of hard cheese like Cheddar or Swiss. Acid whey (also known as "sour whey") is obtained during the making of acid types of cheese such as cottage cheese.advantage is that they do not have to do their own blending, purchasing of the different ingredients, quality control etc.