Condensed Muk and Milk Powder 181 



PART VII 



MANUFACTURE OF MILK POWDER 



CHAPTER XXVI 



DEFINITION 



Milk powder, dry milk, pulverized milk, dehydrated milk, des- 

 iccated milk, is made from cow's whole milk, or partly or 

 wholly skimmed milk, to which sugar, or alkalies, or both may, or may 

 not have been added, and which has be,en evaporated to dryness, 

 either under atmospheric pressure, or in vacuo. 



KINDS 



The milk powders on the market vary chiefly in their solu- 

 bility and fat content. The bulk of the milk powders is produced 

 from wholly or partly skimmed milk. Most of the milk powders of 

 the early days of this industry, contained added cane sugar and 

 alkalies. The purpose of the addition of alkalies was to lend great- 

 er solubility to the proteids. 



The process of manufacture, however, has been improved to 

 the extent to where the solubility of the proteids can be preserved 

 without the admixture of alkalies. Most of the milk powders put 

 on the market in this country are free from admixture of any sub- 

 stances foreign to normal milk. 



HISTORY AND DEVELOPMENT OF INDUSTRY 



The origin and history of the milk powder industry are very 

 closely related and intimately connected with that of the con- 

 densed milk industry. The fundamental purpose of the two prod- 

 ucts is one and the same, i. e., to preserve milk as nearly as possible 

 in its natural condition, and to reduce its bulk to the minimum, so as 

 to make possible its economical transportation to all parts of the 

 world. 



