230 CREAMERY BUTTER }f.-lKING 



cream the less the amount of acid necessary for a test, tor 

 acid does not act upon the fat but spends its energy upon 



Fig. 71. -Cream tester. 



the serum, which becomes less the richer the cream. 14 or 

 15 c.c. of acid is usually sufficient for 18 grams of ordinary 

 cream. 



In case 18 grams of cream are divided between two 

 30% bottles and the same quantity of water is added, the 

 full measure of acid may 'be used with satisfactory 

 results. 



It must be remembered that when only half a sample of 

 cream is used for a test the fat in the neck must 

 always be multiplied by 2 to get the correct reading. 



Necessity of Grading Cream. It is a fact which can 

 not be disputed that in most of the gathered cream 

 factories some cream is received sweet and some more 



