What is E151?

Brilliant Black BN is a synthetic black diazo dye. It is soluble in water. E151 sits in the E100–E199 series, which in the EU classification mainly covers colours.

What is E151 used for?

E151 belongs to the colours group. Colours are added to give or restore colour to food. Some are natural, like curcumin from turmeric; some synthetic dyes are debated and require warning labels in the EU.

Is E151 safe?

E151 is rated “moderate”. It is approved for use in food, but some people prefer to limit it. “Moderate” means it is approved, but is debated or something some people prefer to limit.

How E151 appears on labels

On food packaging you'll find E151 either as the number “E151” or by the name “Brilliant Black BN” in the ingredient list, often after its function. Ingredients are listed in descending order by weight, so an additive near the end is present only in small amounts.

Is E151 vegan?

Yes, E151 is suitable for vegans.