Fine wines are high-quality wines that are often produced in limited quantities. They are typically made from carefully selected grapes and undergo meticulous production processes, including aging in oak barrels. The characteristics of fine wines can include complex flavors, aromas, and a smooth finish, making them highly sought after by collectors and connoisseurs. The classification of fine wines often includes regions known for their exceptional vineyards, such as Bordeaux in France or Napa Valley in California. Factors like terroir, which refers to the unique environmental conditions of a vineyard, play a significant role in the wine's quality and taste.