Touriga Nacional is old dark-skinned red wine grape variety indigenous to Portugal and one of the main grapes for Port wine production in Douro and Dāo regions. It is used as well for dry red table wines in the past decade, gaining more popularity nowadays. The grape has tiny berries and high skin to pulp ratio which improves the amount of extract in the wine. The varietal produces intense, very aromatic wines with high tannin content. In the Douro, it is grown in very hot conditions in steep schist vineyards that are more rock than soil. It is almost 80% of all Port wine blend together with Touriga Franca, Tinta Barroca, Tinta Roriz and Tinta Cão. It gives the structure and the high tannin to the fortified wines which are vital for the long ageing process in the barrel or in the bottle. The grape has found a new home in the hot South Australia and gives very promising results such as in California in the United States.