A professional who tends equipment that melts and pasteurizes butter for use in fortifying and flavoring margarine. Respnsibilities include:

• Opens valves to admit steam to heat chambers of liquefier and pasteurizer to prescribed temperatures.
• Places butter blocks on revolving table and starts liquefier to melt and deposit liquefied butter into receiving tank.
• Pumps melted butter through pasteurizer and preset cooling unit into holding tank.
• Weighs and adds prescribed ingredients to complete batch.
• Dismantles piping, using handtools.
• Flushes lines, and cleans tanks and equipment, using solvents and water.
• Maintains operating log and temperature charts.