nitrogen

Basic Information

Field	Content
Chinese name	nitrogen
English name	nitrogen
INS/E number	INS 941
Functional class	Foaming agent, Packaging gas, Propellant
Year adopted	1965
Approved by	Australia/New Zealand (FSANZ), European Union (EFSA)

What is it?

Nitrogen is an inert gas most widely used in modified-atmosphere packaging and nitrogen flushing to prevent oxidation and aerobic spoilage.

Source

Industrial：液态空气分馏分离氮

Why is it used?

• Prevents oxidation by MAP/nitrogen flushing
• Inhibits aerobic microbes and extends shelf life
• Acts as propellant and dispersing medium
• Protects oxidation-prone foods

Common Foods

• Pre-packed meats
• Potato chips
• Nuts
• Coffee
• Edible oils
• Cheese

Safety

ADI (Acceptable Daily Intake)：Not applicable (evaluated, no limit set)

Usage Standard

China：GB 2760《食品安全国家标准 食品添加剂使用标准》（表A.2 加工助剂/其他）

International：

• EU Regulation 1333/2008 Annex II (E 941, propellant/packaging gas)
• FDA 21 CFR 184.1540 (GRAS)
• Codex GSFA (INS 941)
• FSANZ Food Standards Code (941)

In a nutshell

Nitrogen is the most common inert packaging gas for flushing and oxidation prevention.

Consumer Advice

Nitrogen is the most abundant gas in the air. In food it is used as a packaging gas: flushing packages with nitrogen removes oxygen, preventing fat oxidation and inhibiting microbial growth. It is widely used to preserve crisps, coffee, cooking oil and beer. It is colourless, odourless and completely inert, leaving no harmful residue, and is regarded as one of the safest food gases.

Dietary Restrictions

• Vegan: ✅
• Halal: ✅
• Kosher: ✅

Allergens

✅ Free from common allergens

Disclaimer

The information provided here is for discussion and educational purposes only. It is not medical advice or an evaluation/rating of any product or ingredient. This information may not apply to you; before using or taking any action, you should contact the manufacturer, vendor, medical, dietary, fitness, or other professionals. If you use any information provided here, you do so at your own risk.