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E938Glazing agentLow concern
Argon
In plain words
The short version
A noble inert packaging gas — used for wine and oil purging where nitrogen-acceptable interactions are unwanted.
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.
Safety profile
ADI not specified — completely inert noble gas. The only practical hazard is asphyxiation from oxygen displacement in confined spaces (industrial-safety concern).
The detail
Educational information only. Not medical or dietary advice.