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Show Absolutely Germ-Free Milk Is Impossibility Clean milk should contain- neither foreign matter nor bacteria of any kind. If milk could be obtained and stored, that was entirely free of bacteria, bac-teria, it would keep indefinitely. In new of the fact that absolutely germ-free germ-free milk is impossible to obtain, under un-der practical conditions, it is important impor-tant to consider the ways and means of securing milk that is from healthy :ows, free of foreign matter and which contains only a small amount of bacteria, bac-teria, none of which are disease-producing. The tuberculin test is used as a means of eliminating cows that might pass tuberculosis germs through the milk. This test is prescribed hy practically prac-tically all city ordinances. In some cases cities require the cows to be tested or the milk pasteurized. Other cities insure a doubly safe product by requiring all the milk to come from tuberculin tested cows, whether it is pasteurized or not. Visible dirt in the milk Is not only a source of danger, but it indicates carelessness in handling. Usually such milk contains a large number of bacteria. |