We vacuum process our milk through a Mechanical Vapor Recompressor (MVR) Processing System. Braum's MVR is 4-stories high, weighs approximately 80,000 pounds and is made of stainless steel. The vacuum MVR Processing System makes it possible to process milk at a low temperature causing a water vapor or steam to be released. This water removal varies from 28,000 – 40,000 lbs. per hour depending on the type of milk being processed. In an hour, 9000 gallons of regular fat free skim milk goes through the MVR Processing System and 6000 gallons of Braum's Fat Free Skim Milk comes out, ready for bottling! Another advantage of Braum's unique MVR Processing System is taste. By processing the milk at lower temperatures, you eliminate the possibility of having a "cooked" flavor. By removing this water from the product, the milk is condensed or concentrated naturally, thereby automatically raising the levels of not-fat milk solids. Braum's Skim Milk is fat free and has 50% more protein, calcium, niacin, riboflavin and other essential nutrients than regular skim milk! So not only does it taste better, it's actually better for you! (And it's 100% natural!) It takes 3 gallons of regular skim milk to make 2 gallons of Braum's Fat Free Skim Milk.