Wine vinegar is a type of vinegar made from fermented wine. The fermentation process involves converting the alcohol in the wine into acetic acid, which gives vinegar its sour taste. It can be made from various types of wine, including red wine and white wine, each contributing unique flavors to the final product. This versatile ingredient is commonly used in cooking, salad dressings, and marinades. Wine vinegar can enhance the taste of dishes and is often favored for its complex flavor profile compared to regular vinegar. It is also used in pickling and preserving foods.