Affects vines when air temperatures are high. Very high daytime temperatures, of more than 40°C/104°F, cause the vine to "shut down", or virtually cease photosynthesis, as the enzymes responsible can no longer work. High temperatures also lead to water stress, especially when accompained by bright sunshine, low humidity, and strong, dry winds.
System of fractional blending used most commonly in Jerez for maintaining the consistency of a style of Sherry which takes ist name from those barrels closest to the suelo, or floor, from which the final blend was customarily drawn.
Is Europe and the rest of the Mediterranean basin such as the Near East and North Africa. The term is used solely in contrast to the New World, the Old World having little sense of homogeneity. Old World techniques in vineyard and cellar have relied more on tradition and less on science than in the New World.
Qualitätswein is what POD wines are called in German. This is Germany's largest and lowest wine category and in practice includes all those wines once known as QbA. The grapes must originate in one of Germany's 13 official wine regions and reach minimum must weights.
Or bâtonnage, as it is called in French, is the once fashionable winemaking operation of mixing up the lees in a barrel, cask, tank or vat with the wine resting on them. It is an optional addition to the process of lees contact and is often employed, particularly for whites which have undergone barrel fermentation. Usually done with a stick. Stirring up the lees in the barrel also effects oak flavour.
The most famous northern Rhône appellation of all, producing extremely limited quantities of seriously long-lived reds and about a third as much full-bodied dry white wine which some believe is even more distinguished. Hermitage was one of France's most famous wines in the 18th and 19th centuries when the name alone was sufficient to justify prices higher than any wine other than a first growth bordeaux.
Of a wine is ist total concentration of volatile acids, those naturally occuring organic acids of wines that are separable by distillation. Wine's most common volatile acid by far is acetic acid (more than 96%).
Spanish term used both to describe the process of ageing a wine and also for the youngest officially recognized category of a wood-matured wine. A crianza wine must have spent a minimum of six months in cask.
Attractive small village in the Côte de Beaune district of Burgundy's Côte d'Or producing elegant red wines from Pinot Noir. The wines of Volnay were celebratet under the ancien régime for their delicacy.
Widely misused term meaning strictly the climate within a defined and usually very restricted space or position. In viticulture, it might be at specific positions between rows of vines, or distances above the ground.
The most valuable category of white wines made from the ripest grapes on the best sites of the Wachau in Austria. The category is named after the green lizard that basks in the sun on the Wachau's steep stone terraces above the river Danube. Alcohol levels in the unchaptalized Grüner Veltliners and Rieslings that qualify must be more than 12.5%.