TBHQ And Citric Acid Added To Help Preserve Freshness

TBHQ (tertiary butylhydroquinone) is a synthetic antioxidant. It is made from hydroquinone and isobutylene. Citric acid is a natural acid found in citrus fruits, but it can also be produced industrially.

TBHQ and citric acid are added to foods to prevent fats and oils from spoiling, which helps keep products fresh. They are often found in processed foods containing fats and oils, such as vegetable oils, snack cakes, and frozen desserts.

TBHQ is permitted for use as a food additive in the US, and is generally recognized as safe (GRAS) by the FDA when used within specified limits. Studies in animals have shown mixed results regarding health effects at very high doses, but these doses are far higher than typically consumed by humans. JECFA and EFSA have evaluated TBHQ and established acceptable daily intakes. Citric acid is also GRAS and widely consumed in foods and beverages.