What is E250?

Sodium nitrite is an inorganic compound with the chemical formula NaNO2. It is a white to slightly yellowish crystalline powder that is very soluble in water and is hygroscopic. E250 sits in the E200–E299 series, which in the EU classification mainly covers preservatives.

What is E250 used for?

E250 belongs to the preservatives group. Preservatives stop food from spoiling by slowing bacteria, mould and yeast. Most are safe, though some people limit certain ones.

Is E250 safe?

E250 is one of the additives Skaren flags as “avoid”. Linked to colorectal cancer risk. Many people choose to limit their intake of it. “Avoid” means it is linked to health concerns, requires a warning label, or is banned in some countries.

How E250 appears on labels

On food packaging you'll find E250 either as the number “E250” or by the name “Sodium nitrite” 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 E250 vegan?

Yes, E250 is suitable for vegans.