132 MILK SURVEY OF THE CITY OF ROCHESTER 



entire milk supply of the City of Rochester. Plant No. 4, which is the 

 largest sized plant in the list, is able to furnish power and refrigeration 

 through the labor of 11 employees working 92 man hours. This plant is 

 admittedly at the present time not equipped with the best type of equip- 

 ment. We have selected as a fair basis for the labor of operating the 

 engine room and refrigerating plant of a sufficient size to furnish power 

 and refrigeration for the entire milk supply of Rochester the labor of 12 

 employees at 8 hours daily, or a total of 96 man hours. Using the average 

 Rochester wage scale of .477 per hour, this would give a cost per quart 

 for the entire milk supply of 82,075 quarts of .000558 per quart, and a 

 yearly cost of $16,714.08. 



In considering this figure, it must be borne in mind that at the present 

 time only 55,144 quarts of the milk supply of the city is handled by 

 power plants and refrigerating plants worthy of the name. It would be 

 expected therefore that considerable additional expense would be neces- 

 sary to furnish proper machinery of this kind for the handling of the 

 entire milk supply, consequently under a centralized system one would 

 not expect to show a saving in this department of the business which 

 would correspond to the savings shown in other departments as the result 

 of a centralized system. The savings per quart from the above figures 

 would be .000451, and the annual saving through abandoning the numer- 

 ous small boilers, engines, and refrigerating plants, and centralizing this 

 work in large plants would be $3,605.47. 



Under such a centralized system the greatest advantage obtained 

 would consist in the application of the best possible methods of steriliza- 

 tion and of pasteurization and cooling of the entire supply. 



PLANT PROTECTION 



This item of expense refers to the fact that factories which contain 

 valuable machinery and equipment must employ night watchmen as care- 

 takers. In the City of Rochester at the present time there are onlv 2 

 men employed in this way. The cost of these men is $4.17 daily, as they 

 only work part time on this service. This is a yearly cost of $1,522.45. 

 Under a centralized system the services of these men would still be neces- 

 sary, and we would not anticipate any great reduction in this cost. 



EXPERIMENTAL 



This item refers to the operation of laboratories for the testing of 

 milk for butter fat and for bacteria. In five of the plants in the list such 

 laboratories are operated, while in the City of Rochester under the 

 auspices of the milk dealers themselves there are no such laboratories or 

 laboratory workers. The cost of performing this work in the five plants 

 mentioned is shown in Table No. 63. 



