Ripening: In viticulture, intermediate period in the creation process of the grapes in which the black due to the presence of anthocyanins and yellow is changing colour to bluish red white, to go replacing new chlorophyll pigments and go aparieciendo sugars, acids, the aromas and phenolic compounds. Maturation from the start of veraison takes place at 40 or 50 days depending on the climate, terrain, and the different varieties.