EVAPORATED MILK COOLING 131 



the agitation of the contents and bringing all parts of the milk 

 in direct contact with the cooling surface. 



In factories where these large glass-lined tanks are installed, 

 each successive batch of evaporated milk is transferred, at the 

 conclusion of the process of evaporation and homogenization, to 

 this large holding and cooling tank, where all the batches of the 

 same day's make are cnoled, mixed and held until the last batch 



Fig 1 53. Holding* tank for evaporated milk 

 Courtesy of The Pfaudler Co. 



is in the tank. The standardization of the evaporated milk may 

 be deferred, until all the batches of one and the same day's make 

 have reached the holding tank and the entire mixture is then 

 standardized to the desired composition by the addition of 

 distilled water, skim milk, or cream, according to needs. The 

 evaporated milk in this tank is usually cooled to and held at 40 

 to 45 degrees P. until next morning, when the filling into tins 

 commences. See also "Standardization," Chapter XXIX. 



