Dried milk is a manufactured dairy product made by evaporating milk
to dryness. One purpose of drying milk is to preserve it; milk
powder has a far longer shelf life than liquid milk and does not
need to be refrigerated, due to its low moisture content. Another
purpose is to reduce its bulk for economy of transportation.
Powdered milk and dairy products include such items as dry whole
milk, nonfat (skimmed) dry milk, dry buttermilk, dry whey products
and dry dairy blends. Many dairy products exported conform to
standards laid out in Codex Aliment Arius. Many forms of milk
powder are traded on exchanges as been mashed or otherwise broken
down