PROFITS FROM MANUFACTURE OF ICE CREAM 207 



The following method by the author ' is also easy and quick 

 for the operator to use: 



Let Ci represent amount of original cream. 

 C2 represent amount of standardized cream. 

 M represent amount of miUc. 

 t represent test of milk, 

 ti represent test of original cream. 

 t2 represent test of standardized cream. 

 If the value of Ci is given, but the value of C2 is unknown, 

 then 



C2X t2 = CiX ti+ (C2-Ci)t or 



t2 — t 



This may be expressed as follows: "When a definite amount 

 of original cream is to be standardized with milk of known rich- 

 ness then the amount of standardized cream is equal to the 

 figure representing pounds of original cream used multiplied by 

 figure representing the difference between test of original cream 

 and test of milk, this product divided by figure representing 

 the difference between test of standardized cream and test of 

 milk." 



Example 5: 



Prepare 20 per cent cream from 100 pounds of 30 per cent 

 cream and 4 per cent milk. 



C2 = 100 X = 162 1/2 pounds of 20 per cent cream 



20 — 4 



162 1/2 — 100 =62 1/2 pounds of 4 per cent milk to be used 

 for standardizing. 



If the value of C2 is given the value of Ci unknown, then 

 from the same equation we have the following: 



Ci = C2X^' 

 tl — t 



This may be expressed as follows: "When a definite amount 

 of standardized cream is desired then the amount of original 



' Creamery Journal, June i, 1911. 



