Ingredient Resource Center

Milk Permeate

Also known as: Dairy Permeate and Dairy Products Solids.

Milk Permeate is produced by the removal of protein and other solids from milk resulting in a product with a high concentration of lactose. Removal of the dairy constituents is accomplished by physical separation techniques such as filtration and diafiltration. 

The acidity of Milk (Dairy) Permeate may be adjusted by the addition of safe and suitable pH adjusting ingredients.

Milk (Dairy) Permeate meets the definition of Dairy Products Solids, which is the subject of a GRAS notification to the U.S. Food and Drug Administration, and complies with all provisions of the U.S. Federal Food, Drug, and Cosmetic Act.

ADPI members can access all product standards information through the “Ingredients Resource Center for Members.”

Milk Permeate is a by-product of the Milk Protein Concentrate (MPC) or the Milk Protein Isolate (MPI) production process, formed after ultrafiltration of milk to extract protein and fat. The product is then dried using advanced spray drying techniques. Milk permeate powder is characterized by a clean, slightly salty taste and uniform particle size. It consists of lactose, water, vitamins and minerals.

Milk Permeate Powder is typically 80% lactose (minimum 75%), 3% protein, 8.5% ash plus a trace amount of fat. The total moisture level averages 5% with free moisture at 1.5% or below.

Applications include being used as a direct replacement of other dairy solids in many food applications, including bakery products and pizza crust dough; confectionary products; as a replacement for sucrose or corn syrups; to reduce the level of salt in formulated products; and for fermentation.

Milk Permeate may also be used to standardize Skim Milk Powder or Whole Milk Powder. 

Permeate can be a source of lactose and minerals required for the development of nutritional products for the feed sector – especially for baby animals.

Products should be stored and shipped in a cool, dry environment with temperatures below 80°F and relative humidity below 65%. Stocks should be rotated and utilized within 9 months-1 year.

Multiwall kraft bags with polyethylene inner liner or other suitable closed container – i.e., “tote bins,” etc.



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