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Tend equipment that pasteurize, incubate, and blend sweet or sour milks.

What does a Pasteurizer do?

Tends equipment that pasteurizes, incubates, and blends sweet or sour milk for use in manufacture of margarine: Opens valve to pump prescribed amount of water into tank and adds preweighed powdered milk or opens valve to pump fresh milk or reconstituted powdered milk into tank. Starts agitator. Turns steam valve to heat batch to designated temperature for specified period of time. Admits water into cooling system to reduce heat of batch to storage temperature. Adds specified culture of mixture to produce batch of sour milk. Pumps sweet and sour milk mixture into mixing tank preparatory to churning. Records number of batches produced. May clean and sterilize tank and auxiliary equipment, using steel wool, detergent, and caustic soda solution.