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Glossary of Wine Terms

Redox

The reductive-oxidative way that wine ages. As one part gains oxygen and becomes oxidized, another part loses oxygen and becomes reduced. Early in its life, a wine will exhibit oxidative aromas and traits due to the relatively recent influence and exposure of oxygen when the wine was barrel aged and/or bottled. As the wine ages and is shut off from a supply of oxygen in the bottle, a mature wine will develop reductive characteristics.

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