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 Amber Gardner: ‘We are seeing a shift back towards the known, the familiar and, ultimately, the comforting’ Château Rayas: The enduring winemaking mysteries behind this Rhône icon How a 200% tariff on French wine could impact the US market Andrew Jefford critiques the ‘NoLo’ trend sweeping the wine world Katherine Cole: ‘Is the real question whether wine regions could shield the rest of us from wildfires?’