What is E300?

Ascorbic acid is an organic compound with the formula C6H8O6, originally called hexuronic acid. It is a white solid, but impure samples can appear yellowish. E300 sits in the E300–E399 series, which in the EU classification mainly covers antioxidants and acidity regulators.

What is E300 used for?

E300 belongs to the antioxidants group. Antioxidants stop fats going rancid and food discolouring. Several are natural, such as ascorbic acid (vitamin C).

Is E300 safe?

E300 is considered safe at the levels used in food and is approved for use in the EU. “Safe” means it is approved in the EU and regarded as safe at the levels used in food.

How E300 appears on labels

On food packaging you'll find E300 either as the number “E300” or by the name “Ascorbic acid (Vitamin C)” 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 E300 vegan?

Yes, E300 is suitable for vegans.