Ageing vessels: oxygen balance, not aroma

The standard

The vessel-related oxygen balance describes a vessel by its oxygen ingress per unit of time and volume. Only this ratio explains why the same quantity of wine matures differently in different containers.

Criteria

  • Surface to volume determines the contact area
  • The material decides whether oxygen passes through
  • New wood additionally releases substances of its own
  • Duration acts multiplicatively on the ingress

Distinction

Ageing vessel ≠ oak aroma: a vessel shapes a wine even when it releases no aroma. The vessel-related oxygen balance separates shaping from seasoning. Its level determines the permitted oxidation.