UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 744 



Contribution from the Bureau of Animal Industry 

 JOHN R. MOHLER, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



January 17, 1919 



COOLING MILK 



AND STORING AND SHIPPING IT AT 



LOW TEMPERATURES 



By 



JAMES A. GAMBLE, Market Milk Specialist, and 

 JOHN T. BOWEN, Technologist, Dairy Division 



CONTENTS 



Scope of Experimental Work .... 1 



The Principle of Cooling 1 



Cooling -Mi!k on the Farm 4 



Effect of Low Temperatures on Bade- . 



rial Count of Milk 4 



Cooling Efficiency of Various Kinds of 



Tanks . 8 



Page 



The Construction of Milk Tanks . . 15 



How to Cool Milk Quickly 18 



Efficiency of Different Kinds of Cans for 



Holding Milk . 21 



Transporting Milk at Low Temperatures 24 



Summary 28 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1919 



