Platform tests for milk

This document describes several platform tests used to examine milk quality at reception docks for acceptance or rejection. The tests include organoleptic evaluation of odor, appearance, color and consistency. The clot on boiling test examines milk stability at heat processing. The alcohol test detects abnormal mastitic milk. The two-minute resazurin test determines bacterial quality by comparing color change to a standard. The sediment test examines visible dirt. Specific gravity is tested using a lactometer to detect water adulteration. Other tests include methylene blue reduction and fat content estimation. Interpretations for cow and buffalo milk specific gravities are provided.