Vinegar

Vinegar is a liquid made from the fermentation of ethanol (alcohol) into acetic acid by acetic acid bacteria. It can be produced from various sources, including fruits, grains, or wine, with the specific source often giving it distinct flavors.

Manufacturers add vinegar primarily for its tangy flavor and as an acidity regulator. Its acidic nature also helps preserve foods by inhibiting the growth of certain microorganisms. It is commonly found in dressings, marinades, pickles, sauces, and condiments like ketchup and mustard.

In the United States, vinegar is generally recognized as safe (GRAS) by the FDA for its intended uses. When consumed as part of a typical diet, it is not associated with adverse health effects. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated acetic acid, the main component of vinegar, and did not set a numeric acceptable daily intake (ADI not specified), indicating that its use as a food ingredient is not considered a safety concern at current levels. There are no notable controversies regarding its safety as a food ingredient.