Select the first letter of the word whose definition you wish to obtain.
Constituents of the wines contained in the grape-skins and (on occasion) stalks and belonging to the family of polyphenols. If oxidised, they form quinones, giving rise to casse. Tannins give young red wines their astringency (reaction between tannins and the proteins in saliva). With age, the tannins are softened by polymerisation.
Press
professional access
Educator Area 
extranet
Partager
