VARIATIONS IN TEMPERATURE OF FARM BULK TANK MILK AT TIME OF PICK UP1

Abstract
A study was made of the temperature of bulk tank milk at the time of pick up. The study included 534 Grade A producers from routes of 29 bulk tank haulers, with 22 brands of tanks ranging in age from 10 yr. Actual temperatures of milk at the time of pick up ranged from 0 to 12.8C (32 to 55 F). Differences were observed in the temperature of the top layer of milk before agitation and the blend temperature after agitation. Butterfat particles and ice were observed in approximately 8% and 2% of the tanks, respectively.

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