What E160b actually is
Annatto is the reason cheddar ranges from pale yellow to deep orange. The practice started in England, where cheesemakers who had skimmed the cream off added colour to restore the golden look of a full-fat cheese. The habit stuck, and it now defines what cheddar is expected to look like in many markets.
What it is made from
Extracted from the seed coating of the achiote tree, native to tropical America. Bixin is the fat-soluble form and norbixin the water-soluble one, which is why the label sometimes names them separately.
Vegan, vegetarian, and halal status
Annatto is plant-derived and suits every dietary requirement. Cheese itself raises a separate question for vegetarians, because animal rennet is common, and that is unrelated to the colour.
Is E160b safe?
Annatto is approved in the EU, UK, and US. EFSA re-evaluated the annatto extracts in 2016 and set intake limits for the individual forms. It is one of the few natural colours with documented allergy reports: a small number of people react to it, and it has been implicated in urticaria and, rarely, more serious reactions. That is uncommon but real, and it is worth knowing for anyone with unexplained reactions to cheese or snack foods.
- A small number of documented allergic reactions, including urticaria
- Rarely implicated in more serious reactions, which is unusual for a natural colour
- No general toxicity concern at permitted levels
Where regulators stand
- EFSA (EU)
- Re-evaluated in 2016 with intake limits set for the individual annatto preparations.
- FDA (US)
- Annatto extract is exempt from certification as a colour additive.
Foods it turns up in
- Cheddar, Red Leicester, and other coloured cheese
- Butter and margarine
- Smoked fish and smoked haddock
- Snack foods and crisps
- Custard and dessert products
Names it hides behind
- E160b
- Annatto
- Bixin
- Norbixin
- Achiote
- Colour (E160b)
Common questions
- Why is cheddar orange?
- Annatto. English cheesemakers who skimmed cream off the milk added colour to restore the golden appearance of full-fat cheese, and the look became the expectation.
- Is annatto vegan and halal?
- Yes, it comes from achiote seeds. Cheese itself may contain animal rennet, which is a separate question from the colour.
- Can annatto cause an allergic reaction?
- Rarely, but it is documented. It is one of the few natural colours with recorded allergy reports, including urticaria.
- Is annatto a natural colour?
- Yes. It is a plant extract and is exempt from colour certification in the US, which is the category natural colours fall into there.
- What is the difference between bixin and norbixin?
- Bixin is fat-soluble and used in butter and cheese. Norbixin is water-soluble and used in products with more water. They come from the same seed.
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.
Related
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.