Artificial Mothers* Milk. 



101 



The principal operations we shall have to follow 

 will be: 



The testing of the cow's milk for fat percentage 



and acidity. 



The separating into cream and skim milk. 

 The reduction of the casein in the skim milk 



and the transformation of the remaining into 



the finely coagulating form. 

 The mixing, sugaring and bottling. 

 The sterilizing and the testing of the sterilized 



milk as to its keeping qualities and its freeness 



from germs. 



Starting on the assumption that the manufacture is 

 to be connected with an es- 

 tablished dairy, and, as we 

 shall see later on, the man- 

 ufacture of the normal milk 

 and the maintenance of the 

 dairy, is inseparable one 

 from the other if any guar- 

 antee of purity is to be at- 

 tained it will then generally 

 be found advantageous for 

 the beginner to pass the 

 milk over a system of cool- 

 ers immediately after draw r - 

 ing, and this will become an absolute necessity where 

 the evening's milking has to be turned into normal 

 milk on the following morning. 



The milk, as it- runs from the cooler, is collected in 



Fig. 23-STAR MILK COOLER. 



