Le Connaisseur sells port from the following port houses, among others: Calem, Delaforce, Dow's Port, Fonseca, Graham's Port, Niepoort, Quinta do Vesuvio and Royal Oporto.
Port wine is produced in a special way. If the Port contains 6% alcohol during the fermentation process, pure wine alcohol is added, this ensures that the alcohol content rises to 18 to 20%. At that moment the fermentation stops and all non-fermented sugars ensure that the Port gets a sweeter taste. Port is a typical sweet red, white or rosé wine, served as an aperitif, digestif or dessert wine.
The port wines are made in the Douro Valley, located at the headwaters of the Douro River in northeastern Portugal. Many vineyards grow grapes for port wineries in Porto and Vila Nova de Gaia. A small number of them make their own postage. The vineyards are laid out in terraces on the flanks of the valley. The Douro Valley was declared a World Heritage Site by Unesco in 2001.
There are different port types. The most commonly used subdivisions are ruby, vintage, tawny, white and rosé port.