Grade 



Date 



EXERCISE 31. 



(51) 



Object. — To determine the effect of variations in temperature of milk and 



proportion and richness of cream and loss of fat. 

 Apparatus. — Separator in separator room; quantity of whole milk. 

 Step 1. Separate half the milk at about 90° F. 

 Step 2. Separate half the milk at about 50° F. 



Note. — Maintain correct and uniform speed. Save samples and test. 



Report. 



Name of separator Size . 



Write the reasons and effects of the variations that you have found in 

 this exercise. 



