E943aGlazing agentLow concern
Butane
In plain words
The short version
A hydrocarbon propellant that pushes food out of aerosol cans such as cooking-oil sprays.
Why it's green
It's widely considered safe at the amounts used in food, so we mark it green. The Safety section below has the details.
01Origin
Where it comes from
A hydrocarbon gas from natural gas and petroleum refining; food grade is highly purified.
02Usage
How it's used
A propellant in aerosol food sprays — cooking-oil sprays and similar products — where it forces the contents out of the can.
03Safety
Safety profile
No ADI specified; a propellant that largely escapes rather than being eaten. Food grade is purified to remove impurities.
04Properties
Physical & chemical properties
Colourless flammable gas, liquefies under modest pressure.
05Regulation
Regulation worldwide
Permitted in the EU, the US, and globally as a propellant.
Educational information only. Not medical or dietary advice.