Pasteurization

Pasteurization is a process of heat treating milk to kill bacteria. Although Louis Pasteur developed this technique for preserving beer and wine, he was not responsible for applying it to milk. That was done at the end of the 1800s as a temporary solution until filthy urban dairies could find a way to produce cleaner milk. But instead of cleaning up milk production, dairies used pasteurization as a way to cover up dirty milk. As milk became more mass produced, pasteurization became necessary for large dairies to increase their profits. So the public then had to be convinced that pasteurized milk was safer than raw milk. Soon raw milk consumption was blamed for all sorts of diseases and outbreaks until the public was finally convinced that pasteurized milk was superior to milk in its natural state.

Today if you mention raw milk, many people gasp and utter ridiculous statements like, You can die from drinking raw milk!" But the truth is that there are far more risks from drinking pasteurized milk than unpasteurized milk. Raw milk naturally contains healthy bacteria that inhibit the growth of undesirable and dangerous organisms. Without these friendly bacteria, pasteurized milk is more susceptible to contamination. Furthermore, modern equipment, such as milking machines, stainless steel tanks and refrigerated trucks, make it entirely possible to bring clean, raw milk to the market anywhere in the US.

Not only does pasteurization kill the friendly bacteria, it also greatly diminishes the nutrient content of the milk. Pasteurized milk has up to a 66 percent loss of vitamins A, D and E. Vitamin C loss usually exceeds 50 percent. Heat affects water soluble vitamins and can make them 38 percent to 80 percent less effective. Vitamins B6 and B12 are completely destroyed during pasteurization. Pasteurization also destroys beneficial enzymes, antibodies and hormones. Pasteurization destroys lipase (an enzyme that breaksdown fat), which impairs fat metabolism and the ability to properly absorb fat soluble vitamins A and D. (The dairy industry is aware of the diminished vitamin D content in commercial milk, so they fortify it with a form of this vitamin.)

We have all been led to believe that milk is a wonderful source of calcium, when in fact, pasteurization makes calcium and other minerals less available. Complete destruction of phosphatase is one method of testing to see if milk has been adequately pasteurized. Phosphatase is essential for the absorption of calcium.

From: Weston A. Price