Provam is a society of quotas, constituted by 10 wine-growers of the sub-region of Monção. With an installed capacity of 510.000 litters, 25% of the grapes coming from the vineyards of the partners and the remaining grapes are bought to other growers of this sub-region. The vineyards are selected by their viticulture and oenological potencial in order to select the best ones for the elaboration of excellent and diversified Alvarinho. The technology of the cellar allows raising the oenological value of the casts by the determination of the vintage in each vintage, passing through the grape harvesting made exclusively in pierced boxes of 20 kg, until the soft pressing with pellucular maceration option, must cooling and controlled temperature fermentation. Nothing is made at random, but, in a rational way with the alliance of the highest standards od quality and authenticity.