An accumulation of clay and silt particles that have been deposited by the wind. Loess is typically pale-coloured, unstratified, and loosely cemented by calcium carbonate. Favoured for viticulture because it is porous, permeable, readily warmed and easily penetrated by roots.
The connection of two pieces of living plant tissue so that they unite and grow as one plant, has been a particularly important element in growing vines since the end of the 19th century.
An element that is extremely important in wine production. The addition of sulfur dioxide during crushing and pressing deactivates enzymes that catalyse oxidation, which leads to juice browning and modification of aromas and flavours, which is why it is often added to freshly picked grapes in the salt form of metabisulfite. (The compound is widely, often more liberally, used in the preparation of other foods and drinks, particularly in fruit juices and dried fruits).
Term much used in the wine world, initially smoewhat patronizingly but with increasing admiration in the last quarter of the 20th century as the New World's share of global exports rose from 3 to 23%, to distinguish the colonies established as a result of the longer voyages in the 15th century.
Prosperous village in Burgundy producing the most powerful red wines of the Côte de Beaune district of the côte d'Or, from the usual Pinot Noir grapes.
German term for sweet reserve, the unfermented or part-fermented must much used in the 1970s and 1980s to sweeten all but the finest or driest German wines.
Village in the Côte de Beaune district of Burgundy's Côte d'Or more famed for its white wines from the Chardonnay grape than for its equally plentiful red wines from Pinot Noir.
Important commercial centre on the River Saône and capital of the Mâconnais dynamic district of Burgundy which produces considerable quantities of white wine and some red.
Unregulated term of approbation referring to German Rieslings. Use of gold capsules to signify superior quality was a response, initially and still primarily in the Mosel, to the 1971 German Wine Law's prohibition on labels of traditional terms such as Cabinet, feine, feinste, or hochfeinste.
An expression for that part of the Bordeaux wine region that is on the left bank of the river Garonne. It includes, travelling down river, Graves, Sauternes, Barsac, Pessac-Léognan, Médoc and all the appellations of the Médoc.
Italian term applied to DOC wines which are deemed superior because of their higher minimum alcoholic strength, usually by a half or one per cent, a longer period of ageing before commercial release, or a lower maximum permited yield, or all three.
Means literally "late harvest" and in France is restricted to Alsace, where strict regulations cover ist production, even if too many producers are meeting only the bare minima.
Italian term meaning literally "repassed", for the technique of adding extra flavour, and alcohol, to Valpolicella by refermenting the young wine on the unpressed skins of Amarone wines after these dried-grape wines have finished their fermentation in the spring, and racked off.
French term meaning "bled" for a winemaking technique which results in a rosé wine made by running off, or "bleeding", a certain amount of free-run juice from just-crushed dark-skinned grapes after a short, prefermentation maceration.
Occasionally RS, the total quantity of sugars remaining unfermented in the finished wine. This may include both fermentable sugars, mainly glucose and fructose, which have for some reason remained unconverted to alcohol during fermentation, and small amounts of those few sugars which are not readily fermented by typical wine yeast.
The result of breeding a new variety by crossing two vine varieties. If the varieties are of the same species, usually the European vinifera species, then the result may also be knowm a an intraspecific cross - Müller-Thurgau would be one example.
