Port wine left ("pass the port to port") and for the bottle or decanter not to touch the table on its way around, though some cultures reject this tradition. If a diner fails to pass the port, others at the table may ask "Do you know the Bishop of Norwich?" The Port and Douro Wines Institute is an official body belonging to the Ministry of Agriculture of Portugal and is a key institution in promoting the industry and knowledge of making port wine. It was previously known as the Instituto do Vinho do Porto. Producers of port wine are often called "shippers".
Galician wine grapes produce crisp, aromatic white wines. The area's red wine production is centered on the Garnacha Tintorera which produces dark colored but light bodied wines. Due to the similar climates and Atlantic influence, many of the wines of Ribeiro often share a style with the Portuguese wines from the nearby Vinho Verde region though wine expert Tom Stevenson notes that Ribeiro wines are often fruitier and more aromatic. Other grapes grown in the Ribeiro region include Albariño, Brancellao, Caiño tinto, Caiño blanca, Ferrón, Garnacha, Godello, Jerez, Loureira, Mencía, Sousón Tempranillo, Torronté, Treixadura and Viura. The Valdeorras DO is the easternmost