Hand harvested. The grapes were fermented separately with native yeast - first the 2 white varietals with maceration/infusion and low temperatures. When Sumoll is ripe enough it is picked and co-fermented with the skins of the whites.
Aging
Just before finishing the indigenous fermentation (along with control of residual sugar and densities) it is bottled for Ancestral Method. Annual production is around 300 bottles.