With Chardonnay is the most important and popular white grapes, which are derived from some of the best white wines in the world. It 'good to specify Blanc, because there are other varieties including, depending on the color of the grapes, Sauvignon Gris or Rosé, appreciated in Bordeaux and the Loire, Sauvignon Jaune, Noir and Violet; finally Sauvignon Vert or Sauvignonasse, considered by some close relative of Tocai Friulano, widespread in Chile, with features smaller than the known Sauvignon Blanc (minor extract, greater hardiness, reduced ability to aging etc.). It 's a penetrating grape aroma that allows the immediate recognition, among the typical scents: gooseberries, nettles, moss and cat pee (qualities that are at their best in Sancerre and in the central areas of the Loire). In California, Australia and New Zealand, was tested fermentation and aging in oak, resulting in wines with a decidedly more complex, but with the loss of those characteristics of freshness and aroma that have rightly made famous. However, with this method have been produced, thanks to careful selection in the vineyard and dosages increasingly calibrated timber, great Sauvignon capable of long aging. Accompanied by Sémillon and to a lesser extent from Muscadelle, produces, in Sauternes, one of the greatest sweet wines in the world, of great longevity. Very vigorous plant, needs a good pruning, to avoid excessive vegetative growth. In Italy, even today, the best Sauvignon are produced in Friuli and Alto Adige, in almost all accrued steel.