Dissolved Oxygen (DO): a measured amount

The standard

A measured oxygen amount makes a wine's oxygen exposure traceable rather than estimated. Only the figure in milligrams per litre allows oxidative development to be foreseen.

Criteria

  • The content is given in milligrams per litre
  • It is measured at a defined place and time, not for the wine as a whole
  • Its value rises with air contact and falls through binding in the wine
  • It describes an amount, not its effect on taste

Distinction

Dissolved oxygen ≠ oxidation: dissolved oxygen is the amount present, oxidation its chemical effect over time. Dissolved oxygen ≠ bottling: bottling is an event, a measured oxygen amount the result left by it and every other air contact.