The minimum percent of solids, crude protein, and lactose and the maximum percent ash must be prominently declared on the label. This acid does not affect stainless steel, but will react with brass, copper, etc.
Most product is stored in mild steel tanks which has proven to be adequate.
Agitation and heating are required when product is stored in a very cold environment. Utilization of NPN has been improved by use of whey in ruminant diets. Condensed whey product is used in hog, poultry, and cattle feeds as a nutritious supplement to other energy feedstuffs. It will prevent dustiness and improve palatability. Whey varies in composition depending upon the nutrients of the original milk, on the cheese making process, and upon the techniques of the cheese maker.