In addition to his single vineyard wines, Alvar makes a wine from three plots of vines located in the northwestern part of Toro. Ranging in age from 25–40 years old, these Tempranillo and Garnacha vines are grown on a variety of soils. Named Tio Uco, this wine like those from his single vineyards, is made from organically farmed grapes, fermented whole cluster with indigenous yeasts, sees only a gentle maceration with pigeage by foot, and is aged primarily in neutral French oak barrels ranging in size from 300-1000L. Formerly pure Tempranillo, Tio Uco since the 2016 vintage includes about 10% Garnacha in the final blend.