91 points Robert Parker's Wine Advocate
"The 2018 Tío Uco was radically different from the 2017 I also tasted next to it, and right so, because the years were also very different. There is contained ripeness here and a lot more nuance and freshness. It's more elegant and shows better balance, and it's a good expression of Tinta de Toro (aka Tempranillo), with a softening 10% Garnacha that fermented with wild yeasts and matured in used oak foudres of different sizes for six months, followed by a further six months in stainless steel before it was bottled. 28,000 bottles produced. It was bottled in September 2019."
Vinous Reverie Notes
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.