Brown vinegar, also known as malt vinegar, is a type of vinegar made from fermented malted barley or grains. It has a rich, deep brown color and a distinct, pungent flavor. Brown vinegar is commonly used as a condiment in various cuisines, adding a tangy and acidic taste to dishes such as fish and chips, pickles, and salad dressings. It is also used for culinary purposes, as a tenderizer for meats, and as a household cleaning agent due to its acidity and antimicrobial properties.