De Los Abuelos works with Mencia and Godello in Bierzo, the slate-soiled region of Castilla y León where these varieties thrive. Mencia produces wines of dark fruit and mineral tension, while Godello yields white wines marked by stone fruit and acidity. The winery's Viñedo Barreiros Mencia and Viñedo Barreiros Godello both demonstrate the precision of the site, rated 89.7 by prestige critics including Wine Spectator, Wine Advocate, and Wine Enthusiast. The Viñas Centenarias Godello, also from Godello, scores 88.3 across the same panel. These wines reflect Bierzo's cool climate and distinctive terroir—a region where both red and white expressions command serious attention from established critical voices.