E282: Calcium propionate

What is E282?

Calcium propionate (E282) is the calcium salt of propionic acid, a short-chain fatty acid. Propionic acid occurs naturally in some foods, notably Swiss-type cheeses, where it is produced by bacteria.

Origin and production

Calcium propionate for food use is manufactured by reacting propionic acid with calcium hydroxide or calcium carbonate.

Why is it used?

It is a preservative that is particularly effective against moulds and the bacteria that cause 'rope' in bread. It is widely used in packaged sliced bread, flatbreads, cakes and bakery products, as it does not interfere much with yeast fermentation.

Vegan, vegetarian and halal

Calcium propionate is synthesised without animal ingredients and is suitable for vegans and vegetarians. It raises no particular halal or kosher issue.

Safety and regulation

Calcium propionate is authorised as a preservative in the EU, mainly for bread and bakery products, with maximum levels. EFSA re-evaluated propionates and did not see a need to set a numerical acceptable daily intake.

Common in