TBHQ Blend

TBHQ stands for tertiary butylhydroquinone. It is a synthetic antioxidant, meaning it prevents oxidation, a chemical process that can cause food to spoil. It is often blended with other antioxidants like BHA, BHT, or citric acid to improve its effectiveness.

Manufacturers add TBHQ to foods to prevent fats and oils from going rancid, which helps extend shelf life. It is commonly found in products with high fat content, such as vegetable oils, animal fats, baked goods, cereals, and snack foods like crackers and potato chips.

In the U.S., TBHQ is approved as a food additive and is generally recognized as safe (GRAS) by the FDA when used within specified limits. Regulatory bodies like JECFA and EFSA have evaluated TBHQ. While generally considered safe at typical consumption levels, some studies have raised questions about potential health effects at very high doses, though evidence is mixed and often based on animal studies. More research is ongoing.