Skip to content
The Filtr Library
Additive · Filtr file

E319

TBHQ

Synthetic antioxidant with endocrine and immune concerns.

HIGH RISKPenalty−6 ptsFSANZPERMITTEDBanned in—
FILE · E319
High riskFiltr penalty−6 pts
ISSUED · 06.2026
01 / 04What it is

E319 in plain English

tert-Butylhydroquinone is a synthetic antioxidant used in oils and fried foods. Animal studies show immune effects; restricted in Japan.

Synthetic antioxidant with endocrine and immune concerns.

02 / 04Why it's used

It fights rancidity.

To stop fats and oils from going rancid by mopping up oxygen radicals, protecting flavour and shelf life.

antioxidant
03 / 04Health concerns

A real concern.

Banned in at least one major jurisdiction, or IARC group 2B (possibly carcinogenic).

04 / 04Regulatory status

How the world's regulators rule

Australia · FSANZ
Permitted
Banned jurisdictions
None recorded
Filtr risk tier
High risk
Filtr score penalty
−6 points
Category
Antioxidant