A vintner is a person or business involved in the production of wine. This role encompasses various tasks, including growing grapes, harvesting them, and overseeing the fermentation process. Vintners can operate small family-owned wineries or large commercial enterprises, and they often have a deep understanding of viticulture, the science of grape growing. In addition to producing wine, vintners may also be responsible for marketing and selling their products. They often participate in wine tastings and festivals to promote their wines. The work of a vintner is essential to the wine industry, which includes related fields like viticulture, oenology, and wine tourism.