524 



MILK 



proof, contamination of the milk may follow. By a new device 

 the tops of bottles may be protected from the water so that the 

 ordinary pulp caps can be used. 



Ayers and Johnson have devised a method combining the 

 holder process with that of pasteurization in the final package. 

 After the milk is pasteurized by the holding process it is filled 



Fig. 213. — Cauffman's pasteurizer properly installed. 



into hot steamed bottles and then cooled by a cold-air blast. The 

 use of hot steamed bottles prevents contamination of the milk 

 from the bottles. 



These authors have estimated the efficiency of the process of 

 bottling hot milk pasteurized in bulk as compared with that of 

 pasteurizing milk in bottles. When pasteurizing milk in bottles 



