Port Wine or Porto Wine is a Portuguese wine variety which is very sweet and fortified in texture. It is usually made in North Portugal. It is named after the city of Oporto, the main business centre of this wine. The Port wine is being produced since 15th century and is still very popular amongst the wine lovers. Outside Portugal, it is very famous in England since the Methuen Treaty of 1703, when wine traders got permission to import Port at low duty. At that time French war hindered the English wine lovers to taste the French wine and Port filled up this gap.

The same clones of Port wines are often made in several countries, for example Australia, U.S. etc. Outside Portugal, it was first made in St.Augustine around Florida in the 16th century and still it is made there.

The best time for cultivation is late September to mid October in Douro Valley and Baixo-Corgovalley. The inhabitants of these regions celebrate this time as a wine festival for five weeks. At this time