Nonfat Dry Milk Powder is typically made by spray drying liquid nonfat-skim milk.  Pasteurized nonfat milk is typically spray dried in a low pressure chamber where the water is evaporated leaving behind fine particles of nonfat dry milk powder, often called dry nonfat milk, nonfat dry milk solids, dried nonfat, and nonfat milk powder.  

Alternatively, nonfat dry milk powder can also be manufactured by drum drying and in that process, the liquid skim milk - nonfat is applied to the surface of a heated drum and the nonfat milk powder is then scraped off by knives.  Nonfat Dry Milk powder manufactured by this process tends to have a cooked flavor, due to the increased carmelization of the milk sugar (lactose) that occurs in this process. 

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Last updated on August 4, 2011 by All American Foods, Inc.