Among the pioneers of organic farming in Ribera Del Duero, the organically-farmed vineyards of Bodegas Valderiz, watched over by owner Tomás Esteban, cover 60 hectares and are spread over 35 plots on different soil types. The total absence of herbicides, pesticides and synthetic fertilisers is the bodega’s trademark, and the family is currently in the process of moving to ultra-pure biodynamic viticulture. Oak barrels at Valderiz are 80% French and 20% American, and the degree of toasting is matched carefully to the various terruñas (terroirs, or soils) of the estate.