Portuguese wine order to protect its superior wines from inferior ones. The quality and great variety of wines in Portugal are due to noble castas, microclimates, soils and proper technology. Official designations: Vinho Verde: This region is mainly in the Minho province and is in the extreme north-west of Portugal. There are six areas : Vinho Verde derived its name from the fact that the grapes used are 'green' meaning slightly under-ripe. Vinho Verde wines are now largely exported, and are the most exported Portuguese wines after the Port Wine. The most popular variety in Portugal and abroad are the white wines,
Piemonte (wine) the Langhe, Barolo is a big, tannic expression of the Nebbiolo grape. The soil of this area is a composition of clay and marl which helps to lessen the naturally high acidity of Nebbiolo. The Tanaro river flows through the heart of Barolo country and serves as a tempering influence on the region's summertime heat till harvest time in late October/mid November. A small wine region, extending over 7 miles in length and 5 miles at its widest point, Barolo produces about 500,000 cases of wine annually. Nearly 87% of the zone productions comes from vineyards in five communities: Barolo,