International Code of Oenological Practices

Download document

Protection under inert atmosphere

II.2.2.5 Protection under inert atmosphere


  • Nitrogen : processing aid
  • Argon : processing aid


Definition :

Operation consistent with creating an inert atmosphere using nitrogen, carbon dioxide and/or argon.


To keep the must protected from air to avoid oxidation and the growth of aerobic organisms.

Prescriptions :

The nitrogen, carbon dioxide and argon shall comply with the prescriptions of the International Oenological Codex.

Recommendation of OIV: