A professional who directs and coordinates all activities of winery concerned with production of wine. Responsibilities include:

• Contracts with growers to provide fruit for processing or cooperates with horticulturist of company vineyard in grape production.
• Examines grape samples to ascertain presence and extent of such factors as sugar and acid content, and ripeness.
• Orders grapes picked when analysis indicates they are at degree of ripeness desired.
• Coordinates processes and directs workers concerned with testing and crushing grapes, fermenting juice, fortifying, clarifying, aging, and finishing of wine, including cooling, filtering, and bottling.
• Blends wines according to formulas or knowledge and experience in wine making.
• May develop new processes to improve product.
• When processing champagne, may be designated Champagne Maker.
• When processing wine into vinegar, is designated Vinegar Maker.