E202: Potassium sorbate

What is E202?

Potassium sorbate (E202) is the potassium salt of sorbic acid, a naturally occurring unsaturated fatty acid. It is a white, water-soluble powder or granule, which makes it easier to use in liquid foods than sorbic acid itself.

Origin and production

Sorbic acid was first identified in rowan berries, but potassium sorbate for food use is produced synthetically by neutralising sorbic acid with potassium hydroxide.

Why is it used?

It is a preservative that inhibits moulds and yeasts, especially in mildly acidic foods. You will find it in cakes and pastries, sauces, soft drinks, wine, cheese, yogurts and fruit fillings, where it extends shelf life after opening.

Vegan, vegetarian and halal

Potassium sorbate is synthesised without animal-derived materials and is suitable for vegans and vegetarians. It raises no specific halal or kosher concern in itself.

Safety and regulation

Potassium sorbate is authorised as a preservative in the EU with maximum levels set for each food category. When EFSA re-evaluated sorbates, it identified a risk of exceeding the acceptable daily intake for some population groups, particularly high consumers, based on maximum permitted levels.

Common in