What is E508?

Potassium chloride is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous crystal appearance. E508 sits in the E500–E599 series, which in the EU classification mainly covers acidity regulators and anti-caking agents.

What is E508 used for?

E508 belongs to the stabilisers group. Stabilisers keep mixtures even and stop ingredients separating. Most are safe.

Is E508 safe?

E508 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 E508 appears on labels

On food packaging you'll find E508 either as the number “E508” or by the name “Potassium chloride” 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 E508 vegan?

Yes, E508 is suitable for vegans.