What E392 actually is
Rosemary extract stops fats and oils going rancid, the same job BHA and BHT do, using compounds naturally present in the herb. It is the single most common way manufacturers reformulate away from synthetic antioxidants while keeping shelf life. It is deliberately deodorised so it does not make the product taste of rosemary.
What it is made from
Extracted from rosemary leaves using solvents or supercritical carbon dioxide, then purified and largely stripped of aroma. Entirely plant-derived.
Vegan, vegetarian, and halal status
Rosemary extract is plant-derived and suits every dietary requirement. Where an emulsifier or carrier oil is added to make it disperse, that carrier is worth its own check, though it is normally plant-based too.
Is E392 safe?
Rosemary extract is permitted in the EU, UK, and US. EFSA evaluated it in 2008 and set acceptable daily intakes for the specific preparations. It is generally regarded as one of the lower-concern additives, which is exactly why it is the reformulation target when a brand drops BHA or BHT. One point worth knowing is that it is declared as an additive, E392, not as an ingredient, so seeing it does not mean the product contains herbs.
- No established concerns at permitted levels
- Deodorised, so it does not flavour the product
- Declared as an additive rather than an ingredient, so it does not indicate herb content
Where regulators stand
- EFSA (EU)
- Evaluated in 2008 with acceptable daily intakes set for the specified preparations.
- FDA (US)
- Rosemary extract is used as a generally recognized as safe flavouring and antioxidant.
Foods it turns up in
- Oils, fats, and spreads
- Processed and cured meat
- Snack foods and crisps
- Sauces and ready meals
- Pet food
Names it hides behind
- E392
- Extracts of rosemary
- Rosemary extract
- Antioxidant (E392)
Common questions
- Why is rosemary extract in my food?
- As an antioxidant to stop fats going rancid, not for flavour. It is deodorised specifically so it does not taste of rosemary.
- Is rosemary extract better than BHA or BHT?
- It is plant-derived and carries no carcinogen listing, which is why brands moving away from synthetic antioxidants choose it. It is generally less effective, so it is often used at higher levels or with other antioxidants.
- Is rosemary extract vegan and halal?
- Yes. It is a plant extract. Any carrier oil added to disperse it is normally plant-based too.
- Does E392 mean the product contains herbs?
- No. It is declared as an additive, and it is deodorised, so it contributes shelf life rather than herb content or flavour.
- Is rosemary extract natural?
- It is a plant extract, and it is one of the few antioxidants permitted in organic food, which is a practical marker of that status.
Checking a real pack
This page answers the code. The pack in your hand is what decides, because the same code can come from different sources depending on the manufacturer. LabelWise, formerly SafeChoice, scans the label and explains what is in front of you.
LabelWise content is educational and describes how additives are made, regulated, and labelled. It is not medical, dietary, or religious advice. For certification questions, the mark on the pack and the certifying body are the authority.