Is E319 (tert-Butylhydroquinone / TBHQ) Halal?

MUIS lists E319 (tert-Butylhydroquinone / TBHQ) as doubtful (mashbooh), which means the source cannot be confirmed from the E-number alone — not that it is haram. Although it is made synthetically, some production routes use animal-derived processing aids or carriers, and the E-number does not identify the producer. The reliable check is a recognised halal certification logo on the finished product, or a manufacturer statement of the source.

tert-Butylhydroquinone (TBHQ) is a synthetic antioxidant derived from petroleum, used to extend the shelf life of fats and oils. It is highly effective against oxidative rancidity at low concentrations.

• vegetable oils
• frozen meat products
• instant noodles
• snack crackers
• fast-food fryer oils

• Look for a recognised halal certification logo (MUIS, JAKIM, MUI, HMC or similar) on the packaging — certified products have had the source of this additive verified.
• Check whether the label states the origin, for example 'vegetable origin', 'plant-based' or 'soy'.
• If there is no certification and the origin is not stated, contact the manufacturer or choose a product with a halal alternative.

BHA (E320), BHT (E321), tocopherols (E306)

E319 (tert-Butylhydroquinone/TBHQ) is doubtful for Muslims according to the MUIS food additive listing. tert-Butylhydroquinone (TBHQ) is a synthetic antioxidant derived from petroleum, used to extend the shelf life of fats and oils.

tert-Butylhydroquinone (TBHQ) is a synthetic antioxidant derived from petroleum, used to extend the shelf life of fats and oils. It is highly effective against oxidative rancidity at low concentrations.

E319 is commonly found in vegetable oils, frozen meat products, instant noodles, snack crackers, and fast-food fryer oils.