Comparing E319 - Tertiary-butylhydroquinone (tbhq) vs E321 - Butylated hydroxytoluene

Synonyms
E319
Tertiary-butylhydroquinone (tbhq)
Tert-butyl-1‚4-benzenediol
Butylhydroxinon
TBHQ
Tert-Butylhydroquinone
tertiary butylhydroquinone
E321
Butylated hydroxytoluene
BHT
2‚6-Ditertiary-butyl-p-cresol
bht added to preserve freshness
Products

Found in 3,147 products

Found in 5,513 products

Search rank & volume
#13610.2K / mo🇺🇸U.S.
#9122.6K / mo🇺🇸U.S.
Awareness score

×0.47
under-aware

×0.60
under-aware

Search volume over time

Interest over time for 7 keywords in U.S. during the last 10 years.

Interest over time for 5 keywords in U.S. during the last 10 years.

Popular questions
  1. What is tbhq in food?

    TBHQ (E319) is a synthetic antioxidant added to fats and oils to slow oxidation, helping prevent rancidity, off-flavors, and color loss in foods.

  2. Is tbhq bad for you?

    At the low levels allowed in foods, it’s considered safe by regulators; adverse effects have been observed only at much higher doses in animal studies, with an ADI of 0–0.7 mg/kg body weight/day.

  3. Tbhq what is it?

    TBHQ (tert‑butylhydroquinone) is a phenolic antioxidant preservative used to stabilize fats and oils in processed foods.

  4. What foods contain tbhq?

    It’s commonly used in vegetable oils and fat-rich processed foods such as snacks (chips, crackers), instant noodles, microwave popcorn, baked goods, and some fast‑food frying oils.

  5. How much tbhq is harmful?

    The acceptable daily intake is 0–0.7 mg per kg body weight per day (about 50 mg/day for a 70‑kg adult); regulations typically cap TBHQ at 200 mg/kg (0.02%) of the fat or oil, and adverse effects are linked to doses far above these levels.

  1. What is bht in food?

    BHT (butylated hydroxytoluene, E321) is a synthetic antioxidant added in small amounts to keep fats and oils from oxidizing, helping foods stay fresh and resist rancidity.

  2. Is bht bad for you?

    Major regulators (FDA, EFSA, JECFA) consider BHT safe at permitted levels, with an acceptable daily intake around 0.25–0.3 mg/kg body weight/day. High doses in animal studies have caused liver/thyroid effects, but evidence of harm at normal food-use levels in humans is limited.

  3. What is bht in cereal?

    It’s an antioxidant preservative used to keep the cereal’s fats from going rancid; in some products it’s applied to the packaging liner rather than the cereal itself to help preserve freshness.

  4. What is bha and bht?

    BHA (E320, butylated hydroxyanisole) and BHT (E321, butylated hydroxytoluene) are synthetic antioxidants used to slow the oxidation of fats and oils in foods, helping preserve flavor and shelf life.

  5. What is bht and why you should avoid it?

    BHT is a synthetic antioxidant used to prevent rancidity and preserve freshness. It’s considered safe at regulated levels, but some people choose to avoid it due to its synthetic origin or concerns from high-dose animal studies.