UNITED STATES DEPARTMENT OF AGRICULTURE 



DEPARTMENT BULLETIN No. 973 



Washington, D. C. T June 5, 1923 



MILK-PLANT OPERATION 



By 



CLARENCE L CLEMENT, Market Miik Specialist, Dairy Division, 

 . Bureau of Animal Industry 



CONTENTS 



Page 



The need for lechniMl knowledge 1 



Beccirint milk at the plant ''. 2 



Cradini. samplinc and lestiag 3 



Pasleuriting and CMling 4 



Ballfint and capping 7 



Walking bollles 16 



Watkinguns 25 



Sanitation in city milk plants 25 



Wastes incurred in handling milk 28 



Checking milk through the plant 34 



Number of men required to operate milk plants 38 



Systems of buying milk 39 



Disposalof surplus milk 42 



Manufacture of by-products 44 



Wctglils of milk and crean • 44 



WASHINCTOM 



GOVERNMENT PRINTING OFHCE 



1923 



