Packaging Gas
Packaging gases (E941 nitrogen, E290 CO2, E938 argon) are inert atmospheric components. They are GRAS for use in food packaging at any quantum-satis level.
What it is
Inert gas (typically nitrogen, CO2, or argon) used to displace oxygen inside food packaging (modified atmosphere packaging).
Preserves freshness, prevents oxidative rancidity and microbial growth.
What regulators actually say
"Nitrogen (CAS Reg. No. 7727-37-9) is the chemical N2... The ingredient is used as a propellant, aerating agent, and gas as defined in §170.3(o)(25)... in accordance with current good manufacturing practice."
Regulatory status
United States — FDA
Nitrogen and CO2 affirmed GRAS (21 CFR 184.1540, 184.1240).
European Union — EFSA
Authorized as food additives (E941, E290, E938) under Regulation 1333/2008.
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