In the old times, a Douro vineyard held a muddle of any number of different local grapes. This wine, from 80-year-old vines, is a tribute to the old style of vineyard planting. It's firm, very concentrated and dark, with stunning tannins and rich fruit. The black plum-skin texture, superripe fruit, chocolate and final acidity are all developing slowly and impressively. Drink from 2018.