Adegas Gran Vinum is a family winery owned by Enrique Pineiro. In 1998 the Val do Salnes subregion was added to D.O. Rias Baixas spurring a renewed focus on quality wines. Adegas Gran Vinum reacted by adding new vineyard plots on steep, sandy, south-facing slopes, near the ocean which minimized temperature swings and extended maturation times giving more spice, saline and fruity varietal character to the wines. Soils in the vineyards are enriched in the traditional manner by digging in shells of local mollusks.
Albariño is the local grape and is known for its ability to ripen in this cool corner of Spain. In addition, it maintains its natural acidity well leading to fresh, balanced wines. Adegas Gran Vinum uses different rootstocks on free-draining slopes as opposed to slightly more fertile plots to assure even ripening.