I think the time constants associated with the heat-the-water, 
transfer-to-the-milk scenario will get you. I think they use "flash plates" 
in this kind of process wher the milk runs over the heated (cooled) plate at 
a rate to change it to the desired temperature. The plate is a constant 
temperature and the rate of flow is contolled to get the desired output 
temperature.

Are you pasteurizing the milk? That is what it sounds like to me!

John Ferrell
http://DixieNC.US


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