We've all heard the term tannins mentioned when talking about wine. But what is tannin?
Tannin is an organic component, which the scientific community calls polyphenol, and is present in plants, wood, leaves and fruit peels. Its function is to protect them against insects, ultraviolet radiation and microbial infections.
The answer? It depends.
It all started at a time when the most popular wines like red Bordeaux had a very high concentration of tannins. This feature was very useful for preserving wine on long voyages by ship, however, it also had a major problem: young wines were unpalatable and needed years of maturation to soften tannins.
Nowadays, several factors influence the longevity of a wine, the quality of the grapes, the winemaking process, a go
It is an indigenous Portuguese grape variety. Its origin has been claimed by two wine regions, Douro and Dão, but scholars indicate Dão as the most likely region of origin. Historically it was once known by other names such as Tourigo (Dão), Preta Mortágua (Dão and Bairrada), Mortágua (Dão) and Touriga Fina (Douro) among others.
Wine produced by artisan methods through the millenary technique of fermenting the grapes in clay amphoras. Originated in Roman times, this technique remained unchanged for more than 2000 years, passing from grandparents to parents and from parents to children through popular wisdom.
Wine is part of Portuguese culture, and viniculture is one of the most significant sectors of national agriculture. The heritage connected to wine production is extensive, from the Douro region recognised by UNESCO as a Cultural Landscape to the centuries-old wine production methods modernised with the help of the latest technology.