Ingredient · E942

Nitrous oxide

Source
Unknown
Not yet classified by editors
Allergen
No
Role in food
Nitrous oxide is most commonly used as a propellant in aerosol dispensers for whipped …

What is Nitrous oxide?

Nitrous oxide is a colourless gas with a slightly sweet odour. It is produced industrially through the thermal decomposition of ammonium nitrate. It is primarily used as a propellant in food products.

Is Nitrous oxide a major allergen?

Nitrous oxide is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Nitrous oxide used for?

Nitrous oxide is most commonly used as a propellant in aerosol dispensers for whipped cream and other dairy-based toppings.

Is Nitrous oxide safe?

Nitrous oxide is authorised as a food additive (E942) in Great Britain for use as a propellant.

Why it's used

Nitrous oxide is most commonly used as a propellant in aerosol dispensers for whipped cream and other dairy-based toppings. It helps to create a light, aerated texture and is injected into the cream under pressure. It is also used in some other food products to achieve a similar effect.

Health notes

Nitrous oxide is authorised as a food additive (E942) in Great Britain for use as a propellant. The European Food Safety Authority (EFSA) has evaluated its safety. JECFA has also evaluated it and set an acceptable daily intake. At the levels used in food, it is considered safe. However, misuse or excessive inhalation can lead to adverse health effects, including dizziness and potential oxygen deprivation.

Regulatory status

Authorised in Great Britain (FSA register): England, Scotland, Wales. FSA register of authorised products

Permitted uses in the EU

Nitrous oxide · legislation: 2025-2058

Substance is included in Group I, see also authorisation for Group I

Sources: Food Standards Agency (OGL v3); European Commission, Food Additives Database.

Allergen info

Nitrous oxide is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels. It is a gas and does not contain proteins that trigger allergic reactions. Not a major allergen.

Foods that contain Nitrous oxide

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.