With TBHQ As Preservative

TBHQ, or tertiary butylhydroquinone, is a synthetic antioxidant. It is produced from the reaction of hydroquinone with isobutylene. TBHQ is a white or slightly colored crystalline powder.

TBHQ is added to foods to prevent oxidation, which can cause fats and oils to go rancid and spoil. It helps extend the shelf life of many processed foods, particularly those containing fats and oils, such as baked goods, cereals, and snack foods.

TBHQ is permitted as a food additive by the FDA. It is generally recognized as safe (GRAS) when used in accordance with federal regulations. Studies in animals have looked at high doses, but regulatory bodies like JECFA and EFSA have evaluated its safety. Some consumer groups have raised concerns about TBHQ, but current scientific consensus and regulatory approvals indicate it is safe at typical dietary levels.