212 



PASTEURIZATION 



those of a saw. The rings were fastened to the heating-wall at 

 proper intervals at an angle of 45. The rings were so arranged 

 that the drops of condensed water escaping from the end of each 

 saw-tooth would fall in the hollow between the teeth in the lower 

 rings and thus prevent any spattering of the water against the 

 heating wall. These contrivances greatly increased the effi- 



FIG. 70. Elyria pasteurizer (Elyria Enameled Products Co.). 



ciency as much as 48 per cent and the capacity of the pas- 

 teurizer experimented with. 



Cost of Pasteurization. Dr. Storch in his forty-third report 

 at the Royal Experiment Station at Copenhagen, Denmark, 

 reported that it required 80 pounds of steam to heat 1000 Danish 

 pounds of milk from 40 C. to 85 C. This would be equivalent 



