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Most raw milk collected at farms is pumped from stainless steel tanks into tank trucks for delivery to processing plants. The truck drivers are required to check flavor, temperature, and volume of milk in the farm tank and to collect a sample of raw milk for analysis before pumping the milk into the truck. At the receiving station of the processing plant the milk in the farm truck is weighed and pumped into the plant through flexible plastic and stainless steel pipelines. The actual processing of raw milk begins with either separation or clarification. These machines are essentially similar except that in the clarifier the cream and skim milk fractions are not separated. Separators have two discharge pipes, one for cream and one for skim milk. Clarifiers have only one pipe for whole milk.
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In the clarifier the cream and skim milk fractions …
are collected at farms
have only one pipe
are required to check flavor
are not separated