What is E 249?
E 249 is the E number of Potassium nitrite. Curing agent for meat products. It protects against certain bacteria and gives sausages and ham their red colour.
What is E 249 used for?
E 249 belongs to the group "Other additives" and is used as preservative.
- Preservative: Preservatives prolong shelf life by protecting food against microorganisms.
Which foods may contain E 249?
According to the European Commission's database, E 249 may be used in 6 food categories and subcategories, each only in specific products and usually with maximum levels. The categories come from these areas:
- Meat
Is E 249 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 249 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 249 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 "Preservative: E 249" or "Preservative: Potassium nitrite".
Sources
- Regulation (EC) No 1333/2008, consolidated version of 18.08.2026, Annexes I and II, EUR-Lex
- Food Additives Database, European Commission (accessed 19 October 2026)