PASTEURIZATION 



27 



Fig. 24. — Regenerator in use in Schier's Dairy, Baltimore, Md. 



milk by means of the Pasteurizer is used to partly 

 heat the milk which shall enter the Pasteurizer, while 

 the cold milk helps to cool that which flows from it. 

 It is obvious that if the service of conduct is large 

 enough a complete exchange of the two temperatures 

 must take place. 



