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E942Glazing agentLow concern
Nitrous Oxide
In plain words
The short version
Laughing gas — the propellant in aerosol whipped cream and a culinary aerator.
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 — considered safe as a food additive at use levels (the gas leaves the food as it expands). Inhalation abuse (recreational laughing-gas use) is a separate, increasing public-health concern unrelated to the food use, but driving tighter retail controls on bulk N2O chargers in many jurisdictions.
The detail
Educational information only. Not medical or dietary advice.