What is E940?

Dichlorodifluoromethane (R-12) is a colorless gas popularly known by the genericized brand name Freon. It is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant. E940 sits in the E900–E999 series, which in the EU classification mainly covers glazing agents, gases and sweeteners.

What is E940 used for?

E940 belongs to the packaging gases group. Packaging gases are used in packaging to extend shelf life, like nitrogen and CO2.

Is E940 safe?

E940 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 E940 appears on labels

On food packaging you'll find E940 either as the number “E940” or by the name “Dichlorodifluoromethane” 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 E940 vegan?

Yes, E940 is suitable for vegans.