Tannat is a red wine grape, historically grown in South West France in the Madiran AOC, and is now one of the most prominent grapes in Uruguay, where it is considered the “National grape”. It is also grown in Argentina, Australia, Brazil, Bolivia, Peru, South Africa, Turkey and in the Italian region of Apulia, where it is used as a blending grape. It is also used to make Armagnac and full bodied rosé. In France, efforts to solve the harsh tannic nature of the grape led to the development of the winemaking technique known as micro-oxygenation.