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Preservatives & additives

TBHQ

Tertiary butylhydroquinone, printed as TBHQ or E319.

Matches personal ingredient preferences based on label evidence; not medical, allergy, or dietary safety advice

What the label is naming

TBHQ is tertiary butylhydroquinone, an antioxidant preservative used in oils and fried snacks. Labels use the acronym or the long name. E319 is the code. It is its own entry, not a synonym of BHA or BHT.

Where it hides

Instant noodles, crackers, and fried snacks, usually in the oil portion of the formula. A seed-oil match and a TBHQ match can both be true on the same product.

Names and codes

Aisles to check

Label-reading tips

Check a label for TBHQ

Paste an ingredient list. This checker looks only for TBHQ. It does not score the rest of the food.

Questions

Is TBHQ a seed oil?

No. It is filed with preservatives. A product can flag both if the oil and TBHQ are both printed and both categories are on.

What is the long name?

Tertiary butylhydroquinone. That full phrase and the acronym TBHQ share this page.

Related in Preservatives & additives

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