What is E 508?

Potassium chloride as a white powder
Potassium chloride as a white powder Photo: Pań w żółtym kapeluszu, CC0, Wikimedia Commons

E 508 is the E number of Potassium chloride. Mineral salt often used as a partial replacement for table salt in reduced-salt products.

Where is E 508 most commonly used?

Potassium chloride is mainly used as a partial replacement for table salt, for example in reduced-salt seasonings and salt substitutes. It also tastes salty, but slightly bitter.

What is E 508 used for?

E 508 belongs to the group "Other additives" and is used as flavour enhancer, firming agent, carrier.

  • Flavour enhancer: Flavour enhancers enhance the existing taste or odour of a food.
  • Firming agent: Firming agents keep fruit or vegetables firm and crisp.
  • Carrier: Carriers dissolve, dilute or disperse other additives, flavourings or nutrients without having a technical effect themselves.

Which foods may contain E 508?

According to the European Commission's database, E 508 may be used in 68 food categories and subcategories, each only in specific products and usually with maximum levels. The categories come from these areas:

  • Dairy products and analogues
  • Fats and oils and fat and oil emulsions
  • Edible ices
  • Fruit and vegetables
  • Confectionery
  • Cereals and cereal products
  • Bakery wares
  • Meat
  • Fish and fisheries products
  • Eggs and egg products
  • Sugars, syrups, honey and table-top sweeteners
  • Salts, spices, soups, sauces, salads and protein products
  • Foods for specific groups (infants, young children, special medical purposes)
  • Beverages
  • Ready-to-eat savouries and snacks
  • Desserts
  • Food supplements
  • Processed foods not covered by categories 1 to 17

Is E 508 vegan?

Usually yes: the substance is normally made from plant, mineral or synthetic raw materials or with microorganisms. In individual cases, only the manufacturer or a vegan label can give certainty.

Is E 508 linked to genetic engineering?

No typical link to genetic engineering is known for this substance: it is not usually obtained from plants for which GM varieties exist, nor produced by fermentation.

How does E 508 appear on the label?

In the list of ingredients, the substance appears with its function, followed by the E number or the name, for example "Flavour enhancer: E 508" or "Flavour enhancer: Potassium chloride".

Sources