Royal Colheita Port 1975
The home of Port—perhaps the most internationally acclaimed beverage—the Douro region of Portugal is one of the world’s oldest delimited wine regions, established in 1756. The vineyards of the Douro, set on the slopes surrounding the Douro River (known as the Duero in Spain), are incredibly steep, necessitating the use of terracing and thus, manual vineyard management as well as harvesting. The Douro's best sites, rare outcroppings of Cambrian schist, are reserved for vineyards that yield high quality Port.
While more than 100 indigenous varieties are approved for wine production in the Douro, there are five primary grapes that make up most Port and the region's excellent, though less known, red table wines. Touriga Nacional is the finest of these, prized for its deep color, tannins and floral aromatics. Tinta Roriz (Spain's Tempranillo) adds bright acidity and red fruit flavors. Touriga Franca shows great persistence of fruit and Tinta Barroca helps round out the blend with its supple texture. Tinta Cão, a fine but low-yielding variety, is now rarely planted but still highly valued for its ability to produce excellent, complex wines.
White wines, generally crisp, mineral-driven blends of Arinto, Viosinho, Gouveio, Malvasia Fina and an assortment of other rare but local varieties, are produced in small quantities but worth noting.
With hot summers and cool, wet winters, the Duoro has a maritime climate.
Apart from the classics, we find many regional gems of different styles.
Late harvest wines are probably the easiest to understand. Grapes are picked so late that the sugars build up and residual sugar remains after the fermentation process. Ice wine, a style founded in Germany and there referred to as eiswein, is an extreme late harvest wine, produced from grapes frozen on the vine, and pressed while still frozen, resulting in a higher concentration of sugar. It is becoming a specialty of Canada as well, where it takes on the English name of ice wine.
Vin Santo, literally “holy wine,” is a Tuscan sweet wine made from drying the local white grapes Trebbiano Toscano and Malvasia in the winery and not pressing until somewhere between November and March.