What is E504?

Magnesium carbonate, MgCO3, is an inorganic salt that is a colourless or white solid. Several hydrated and basic forms of magnesium carbonate also exist as minerals. E504 sits in the E500–E599 series, which in the EU classification mainly covers acidity regulators and anti-caking agents.

What is E504 used for?

E504 belongs to the raising agents group. Raising agents make baked goods rise, like baking soda and baking powder.

Is E504 safe?

E504 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 E504 appears on labels

On food packaging you'll find E504 either as the number “E504” or by the name “Magnesium carbonates” 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 E504 vegan?

Yes, E504 is suitable for vegans.