Home Wine Grape Varieties Tinto Cao (red) Decanter Staff August 13, 2010 One of the rarest, high quality port grapes grown in the Douro Valley, highly prized for its spicy character. Written by Latest Wine News A Spectacular Day at the 27th DFWE London Scotch producer claims Guinness World Record for ‘The Greatest Variety of Flavours in a Whisky’ French protests: Growers block motorway and hijack lorries containing Spanish wine Baudains: Are old vines important? Trump returns: The impact on the US wine industry