Colour · INS 150d

Caramel Colour (Class IV)

Sulphite ammonia caramel, the brown colour in colas and sauces. It can contain 4-MEI, a by-product IARC lists as possibly carcinogenic.

Class IV caramel colour is made by heating sugars with ammonium and sulphite compounds. It gives colas, sauces and gravies their dark brown colour.

What the research says

The process can create 4-methylimidazole (4-MEI), which IARC classifies as possibly carcinogenic to humans. Regulators set limits on how much 4-MEI caramel colour may contain.

CleanPlate verdict

Cosmetic, and worth watching in products you consume often, like colas.

Worth watching
CleanPlate rating
Also listed asINS 150d
TypeColour
RatingWorth watching
Rated products with it2
Look for any of these names or codes in the ingredient list.

Found in

Products we've rated that list Caramel Colour (Class IV), best first.

Related additives

Full index →