8 DAIRY LABORATORY GUIDE 



4. Repeat experiment one, using a high speed 

 of bowl in one instance and in the other a low 

 speed. 



Milk Can Washer 



5. Similarly separate a can of milk, allowing the 

 milk to flow slowly through the separator bowl at 

 about one-half capacity. Then separate 

 can of milk running at full capacity. 



6. Separate a can of milk testing less 

 than .2 per cent acid and another can at 

 the same temperature but testing 35 per 

 cent to .4 per cent acid. In every ex- 

 periment make careful tests of cream 

 and milk to ascertain causes of varia- 

 Tii- ~ tion in the test of both skim-milk and 



Milk Stirrer 



and Aerator cream. 



