E949Glazing agentLow concern
Hydrogen
In plain words
The short version
A packaging gas used in modified-atmosphere applications; niche in food.
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
The lightest element, produced industrially from water or natural gas.
02Usage
How it's used
A packaging gas used in some modified-atmosphere applications; a niche food use.
03Safety
Safety profile
No ADI specified; not metabolized at the trace levels involved.
04Properties
Physical & chemical properties
Colourless, odourless, highly flammable gas.
05Regulation
Regulation worldwide
Permitted in the EU and other jurisdictions as a packaging gas.
Educational information only. Not medical or dietary advice.