Home Learn DOCa (Denominacin de origen calificada) Decanter Staff November 11, 2010 The highest quality wine designation in Spain. Rioja was the first DO to be promoted. Written by Latest Wine News Bordeaux 2023 market analysis: Mouton price falls more than 30% Leading producers declare 2022 Vintage Ports Chinese fraudster jailed for five years for bottling fake Lafite and Petrus