HANDLING OF MILK AND CREAM 



ii5 



The temperature of the milk may be lowered to a point two 

 degrees above that of the water circulating through the cooler. 



The Star cooler is made of two sheets of corrugated copper, 

 tinned on its outer surface, which comes in contact with the milk. 

 The water enters below, filling the entire space between the copper 

 sheets, and flows upward through the cooler, while the warm milk 

 drops through the holes punched along the whole length of the feed 

 trough at the top of the cooler and flows down over both cooling 

 sheets. As the milk is cooled, flowing down the outside, the water 

 is warmed as it moves up the inside of the cooler (see Fig. 16). 



Kg. 18. 



Fig. 19. 



Star Milk Cooler. 



Star Milk Cooler. 



The water supply for the cooler may be obtained in various 

 ways : From a common source of water, as a town supply ; from a 

 barrel or tank over the cooler (see Fig. 18) ; or from a barrel be- 

 neath the cooler by means of a siphon attachment (see Fig. 19). If 

 it be desired to cool the milk much under 50 , it may be necessary 

 to use ice water in a part of the cooler. 



This is most economically accomplished by an ice water sec- 

 tion, which is made to be hung on the bottom of the Star cooler 

 and is practically a small counterpart of the larger cooler above 



