What is E556?

E556 (Calcium aluminium silicate) is a anti-caking agents food additive. Anti-caking agent, contains aluminium. E556 sits in the E500–E599 series, which in the EU classification mainly covers acidity regulators and anti-caking agents.

What is E556 used for?

E556 belongs to the anti-caking agents group. Anti-caking agents stop powders clumping, as in salt and spices.

Is E556 safe?

E556 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 E556 appears on labels

On food packaging you'll find E556 either as the number “E556” or by the name “Calcium aluminium silicate” 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 E556 vegan?

Yes, E556 is suitable for vegans.