Vintners are individuals or businesses involved in the production of wine. They oversee the entire winemaking process, from growing grapes in vineyards to fermenting and aging the wine. Vintners often have a deep understanding of grape varieties, climate, and soil, which helps them create high-quality wines. In addition to producing wine, vintners may also be responsible for marketing and selling their products. They often work closely with grape growers and winemakers to ensure the best possible outcome. Many vintners also operate wineries, where visitors can taste and purchase their wines.