principles and practice of butter making a treatise on the chemical and physical properties of milk and its components the handling of milk and cream and the manufacture of butter therefrom butter milk farm separators 153 that if thin cream is skimmed greater can capacity is necessary and the express charges will be heavier than if the thicker cream were skimmed rich cream does not sour so rapidly as does thin cream fig 81the reid hand separator fig 85empire hand separator the thickness of cream can be readily ascertained by the use of a babcock test which every farmer pg414h.jpg from » milk bo View Photo