Teinturier grape

Teinturier grapes are grapes whose flesh and juice are red in colour due to anthocyanin pigments accumulating within the pulp of the grape berry itself. In non-teinturier red grapes, 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 normally comes from anthocyanins extracted from the macerated (crushed) skins, over a period of days during the fermentation process. The name teinturier comes from French, meaning "dyer".