STANDARDIZATION OF CREAM. 265 



The following solution of this problem may also 

 be used: 4.5-^3.8X5,000=5,921 lbs., the total 

 amount of milk testing 3.8 per cent butter fat. 



5,921 — 5,000=921, the whole amount of skim-milk 

 added to reduce the test to 3.8%. 



These few problems will probably show that stand- 

 ardization is not too complicated to be made use of 

 in every cream and milk plant, where milk or cream 

 of different richness is mixed and in this manner 

 the per cent of butter fat is raised or lowered. Its 

 economical and commercial advantages can not be 

 questioned; and since we are legally and morally 

 bound not to take advantage of the public, its use 

 seems to be indispensable. The simplicity with 

 which the desired richness may be calculated is ob- 

 vious. 



49. How to use viscogen as a thickening agent. 



Where viscogen is employed as a thickening agent, 

 the following rule will help to simplify the work : 



Rule: Multiply the amount of cream to be treated 

 with viscogen by two-thirds of the number of cubic 

 centimeters used to neutralize the acidity in one 

 pound of cream. The product divided by 950 cubic 

 centimeters (the number of c. c. in one quart) will 

 equal the number of quarts of viscogen to be added 

 to the cream to be treated. 



Problem: If 6 cubic centimeters of viscogen will 

 neutralize the acidity in one pound of cream, how 

 many quarts of viscogen must be added to 800 lbs. 

 of cream? 



Solution: Six c. c. of viscogen will neutralize 

 acidity in one pound of cream. 



