Teinturier

Teinturier (French: to dye or to stain) grapes are grapes whose flesh and juice is red in colour due to anthocyanin pigments accumulating within the pulp of the grape berry itself.[1] In most cases, anthocyanin pigments are confined to the outer skin tissue only, and the squeezed grape juice of most dark-skinned grape varieties is clear. The red color of red wine comes from anthocyanins extracted from the macerated (crushed) skins, over a period of days during the fermentation process.

An example of the difference between a red fleshed teinturier grape (Agria left) and a red wine grape variety with its skin peeled off to show that its flesh and juice is naturally white (Grenache right). The vast majority of red wine grapes are like the Grenache on the right with the red color of wine coming from skin contact during winemaking.

Wines

Teinturier varieties, while containing a lot of color, usually make special wines, perhaps due to a higher level of tannins, compounds structurally related to the anthocyanins. Many winemakers blend small volumes of teinturier juices into their wines, to boost the colour, without dramatically impacting the taste.

Examples
Grapes of the teinturier variety Kolor
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References
  1. Jancis Robinson, ed. (2006). "Teinturier". Oxford Companion to Wine (Third ed.). Oxford: Oxford University Press. pp. 688–689. ISBN 0-19-860990-6.


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