Yllera produces wines from Castilla y León, Spain's expansive continental plateau. The winery focuses on two distinct expressions of terroir: Verdejo whites that capture the region's mineral character, and Tempranillo-based reds that reflect the area's diurnal temperature swings. Meraldis Vinificación Integral Verdejo and Islero Verdejo demonstrate the varietal's capacity for structure and complexity in this climate, while Jesús Yllera Crianza—a Cabernet Sauvignon and Tempranillo blend—shows how the winery integrates international and indigenous grapes. The wines have been assessed by Wine Enthusiast, Wine Advocate, Decanter, Wine Spectator, and Falstaff.