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 Pursehouse: Cool climate is the future of wine Penderyn launches first whisky from its North Wales distillery Katherine Cole: When wine met tariffs, history rarely went according to plan London wine heist: Tuk-tuk driver steals bottles worth £24,000 Growth of English and Welsh still wine sales outpaces sparkling