A professional who tends machine that clarifies wine prior to filtering. Respnsibilities include:

• Starts pump to transfer fermented wine from settling cask to clarifying tank.
• Spreads chemicals over surface of wine to aid in clarification, and starts agitator to mix ingredients for specified period of time.
• Stops agitator to allow suspended matter to settle.
• Starts pumps to transfer clarified wine to filtering tank.
• May fumigate empty wine casks with bottled gas and burn sulfur sticks in casks to kill bacteria.