CHAPTER 8 

 MILK AND ITS PRODUCTS 



C. H. ECKLES 

 COMPOSITION OF MILK 



153. Average Composition. Milk is composed of water, 

 fat, protein, sugar, and ash or minerals. The milk of all 

 species of animals and of every individual within the species 

 contains these same constituents, but the proportions ar% 

 subject to wide variations. 



Cow's milk weighs approximately 2.15 pounds per quart. 

 (Density is 1.032.) It is not possible to give any single 

 statement that will give more than a general idea of its 

 composition on account of the wide variations due to the 

 influence of breed and other factors. If a quantity of milk 

 be taken as representative of the total amount sold for city 

 trade or of that sold to butter or cheese factories, it would 

 have approximately the following composition : 



PER CENT 



Water 87.3 



Fat 3.7 



Protein 3.5 



Sugar 4.8 



Ash 7 



154. Water. Milk contains on an average about 87.3 

 per. cent of water; The extreme variations are from about 

 83 to 90 per cent. The water in milk serves the same 



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