E326: Potassium lactate

What is E326?

Potassium lactate is the potassium salt of lactic acid. Labelled E326, it is usually supplied as a clear, slightly syrupy liquid with a mild salty taste.

Origin and production

It is made by neutralising lactic acid, which is produced by fermenting sugars from sources such as maize or sugar beet, with potassium hydroxide. Despite the name, it is not derived from milk.

Why is it used?

Potassium lactate helps inhibit the growth of spoilage and harmful bacteria, retains moisture and enhances flavour in meat and poultry products. It is common in cooked hams, sausages, bacon lardons and prepared chicken, and is useful in reduced-sodium products as an alternative to sodium lactate.

Vegan, vegetarian and halal

Potassium lactate is produced by fermentation of plant sugars and is suitable for vegans and vegetarians, and it contains no dairy. It is not generally a halal or kosher concern in itself.

Safety and regulation

Potassium lactate is authorised as a food additive in the EU and may be used at the level needed for its purpose in most permitted foods. Lactate is a normal product of human metabolism.

Common in