What is E261?

Potassium acetate, is the potassium salt of acetic acid. It is a hygroscopic solid at room temperature. E261 sits in the E200–E299 series, which in the EU classification mainly covers preservatives.

What is E261 used for?

E261 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 E261 safe?

E261 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 E261 appears on labels

On food packaging you'll find E261 either as the number “E261” or by the name “Potassium acetate” 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 E261 vegan?

Yes, E261 is suitable for vegans.