Wine classification refers to the system used to categorize wines based on various criteria, including grape variety, region of production, and winemaking techniques. The most common classifications include red, white, rosé, and sparkling wines, each distinguished by their color, flavor profile, and production methods. Additionally, wines can be classified by their sweetness levels, such as dry, semi-sweet, and sweet. Another important aspect of wine classification is the designation of origin, which often includes terms like Appellation d'Origine Contrôlée (AOC) in France or Denominazione di Origine Controllata (DOC) in Italy. These classifications ensure that wines meet specific quality standards and reflect the unique characteristics of their respective regions.