What is E526?

Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca(OH)2. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed with water. E526 sits in the E500–E599 series, which in the EU classification mainly covers acidity regulators and anti-caking agents.

What is E526 used for?

E526 belongs to the firming agents group. Firming agents keep fruit and vegetables firm when preserved.

Is E526 safe?

E526 is considered safe at the levels used in food and is approved for use in the EU. “Safe” means it is approved in the EU and regarded as safe at the levels used in food.

How E526 appears on labels

On food packaging you'll find E526 either as the number “E526” or by the name “Calcium hydroxide” 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 E526 vegan?

Yes, E526 is suitable for vegans.