E942: Nitrous Oxide
Main role: propellant and aeration
Also listed as: N2O, cream charger gas
What is E942 (Nitrous Oxide)?
Nitrous oxide is used as a food propellant, particularly to aerate cream in appropriate dispensing equipment. Its food function differs from inhaling the gas directly.
What does it do in food?
Its main role is propellant and aeration. Gas mixtures are chosen for a particular product and package. A protective atmosphere supports a storage system; it does not replace temperature control, hygiene, or the instructions printed on the pack.
Food and formulation examples
- Whipped-cream dispensers
- Aerosol cream preparations
These examples describe formulation roles, not a list of unrestricted legal uses. Availability and permitted applications differ by country and food category.
Label names and ingredient questions
Look for E942, E 942, or the ingredient name. Related names and label terms include N2O, cream charger gas. A family code can cover more than one specified form; check the full declaration when the distinction matters.
Use food dispensers according to their instructions. A food propellant authorization does not establish the safety of recreational inhalation or other non-food exposure.
Is E942 safe?
There is no meaningful personal risk estimate from an E number alone. Food-grade specifications, allowed uses, amount consumed, and individual circumstances all matter. The authorization record below gives the legal scope; it is not a claim that every possible use is appropriate.
A label identifies the ingredient but usually not its concentration. Calculating daily intake requires the amount in the food and the quantities eaten.
Authorization and conditions of use
The Great Britain food additive register lists E942 as Nitrous oxide. This is an entry subject to its stated conditions, not unrestricted permission for every food. The record links to the applicable authorization terms. For an EU product, use the European Commission food additive database to check the relevant food category and limits. Other countries may use different names or rules.