What is E290?

Carbon dioxide is a chemical compound with the chemical formula CO2. It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. E290 sits in the E200–E299 series, which in the EU classification mainly covers preservatives.

What is E290 used for?

E290 belongs to the preservatives group. Preservatives stop food from spoiling by slowing bacteria, mould and yeast. Most are safe, though some people limit certain ones.

Is E290 safe?

E290 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 E290 appears on labels

On food packaging you'll find E290 either as the number “E290” or by the name “Carbon dioxide” 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 E290 vegan?

Yes, E290 is suitable for vegans.