Therefore this type milk will be fortified with vitamins A and D. Nonfat milk solids may also be added. It has about half the calories of whole milk. Be sure to buy brands that have vitamin A and D added. Now lactic acid is added to skim milk to produce flavor and texture. High fat liquid milk product separated from whole milk.
Pressure develops under film and causes milk to boil over around sides of film.
Problem may be reduced by covering pan, diluting milk, or by presence of fat floating on surface. This plan only helps at low temps. Beating with rotary beater and forming foam on surface helps this problem, but does not completely solve it. When you heat milk, lactose particles settle on the bottom and sides of the pan. Use low heat and cook only until bubbles form around sides of pan.