What is E281?

Sodium propanoate or sodium propionate is the sodium salt of propionic acid which has the chemical formula Na(C2H5COO). This white crystalline solid is deliquescent in moist air. E281 sits in the E200–E299 series, which in the EU classification mainly covers preservatives.

What is E281 used for?

E281 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 E281 safe?

E281 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 E281 appears on labels

On food packaging you'll find E281 either as the number “E281” or by the name “Sodium propionate” 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 E281 vegan?

Yes, E281 is suitable for vegans.