CHAPTER V 



CLEANING AND COOLING THE MILK CLEANING 



CONTAINERS HOME PASTEURIZATION, ETC. 



It is of course needless to say that all milk 

 should be clean when it arrives at the plant where 

 it is to be pasteurized. That is, there should be no 

 visible dirt in the milk. It is also desirable that 

 all dirt which is not readily detected be absent. 

 While visible dirt and bacteria are not identical, 

 still it is true that visible dirt is almost always ac- 

 companied by bacteria in large numbers. Dealers 

 should therefore make every effort to induce the 

 dairymen to be so cleanly in their methods that 

 very little dirt will find entrance into the milk. 

 The sediment test when properly used is an ex- 

 cellent method of finding out whether or not the 

 dairyman is cleanly in his methods. If, however, 

 the producer is allowed to strain his milk before 

 bringing it to the shipping station, then the sedi- 

 ment test simply tells the dealer whether or not 

 the farmer has strained the dirt out. Or rather, 

 let us say it indicates either that the farmers' 

 methods of caring for the milk are cleanly, or that 

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