Aside from Rioja, what is the other officially recognized DOCa wine region?

Priorat is indeed the other officially recognized DOCa (Denominación de Origen Calificada) wine region in Spain, alongside Rioja. The designation of DOCa is given to regions that meet strict quality criteria and have demonstrated consistently high-quality wine production for an extended period.

Priorat, located in Catalonia, is known for its powerful red wines made primarily from Garnacha and Cariñena grapes. The region's unique terroir, characterized by its slate soils and steep vineyard terraces, contributes to the distinct flavors and complexity found in its wines. The recognition as a DOCa reflects not only the quality of the wines produced but also the commitment of the producers to maintain high standards in viticulture and winemaking.

In contrast, Jerez is known for sherry production but holds the Denomination of Origin (DO) status rather than DOCa. Torres is a prominent winery within the Penedès region and not an official wine region itself. Rías Baixas is known for its Albariño wines and is classified as a DO, but it has not achieved DOCa status. Thus, the designation of Priorat aligns with the stringent criteria set forth for DOCa recognition, affirming its status as a region of high-quality wine production.