Before concrete, stainless steel, and other inert materials replaced wood as the most common material for wine fermentation vessels and storage containers in the 1960s, each wine region had ist own legion of barrel types. Even today such terms as feuillette, tonneau, and fudre may be used to measure volumes of wine long after the actual containers themselves have been abandoned.
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.
Nebulous Italian term usually denoting a wine given extended ageing before release, and suggesting a higher quality, and a higher percentage of alcohol than the normal version of the same wine. The ageing requirement for Riservas varies from DOC to DOC, but normally is a minimum of one year, up to 62 months for Barolo Riserva. In many cases this must include a period in cask, aswell as in bottle.
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.
French term used to describe grapes which have been dried, or partially dried, before fermentation to increase the sugar content. It is used most commonly in Switzerland and occasionally in the Valle d'Aosta.
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.
Direct Anglicization of the German Eiswein, sweet wine made from ripe grapes picked when frozen on the vine and pressed so that water crystals remain in the press and the sugar content of the resulting wine is increased. This sort of true ice wine is a speciality of Canada, where it is written Icewine. The word Icewine has been trademarked by VQA Canada which imposes the world's most stringent standards on the production. In Ontario, grapes for Icewine must have reached alt least 35° Brix. Residual sugar at bottling must be at least 125 g/l.
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.
Traditional Bordeaux measure of wine volume, once a large woodes cask holding 900 lit., or 252 imperial wine gallons, the equivalent of four barriques.
Red winemaking process which transforms a small amount of sugar in grapes which are uncrushed to ethanol, without the intervention of yeasts, it is used typically to produce light-bodied, brightly coloured, fruity red wines for early consumption, most famously but by no means exclusively in the Beaujolais region of France.
French word for the process by which passerillé grapes are dried, shrivelled, or raisined on the vine, concentrating the sugar in grapes-an alternative to wines whose sugars have been concentrated by botrytis.
Stands for Denominazione di Origine Controllata e Garantita, a legal category established in Italy in 1963 for its highest-quality wines, at the same time as its DOC was created as an Italian version of the French appellation contrôllée.
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.
IP was developed as a concept in 1974, and major development has come from France, Germany and Switzerland. IP emphasizes a holistic approach to viticulture, by considering the vineyard as an "agro-ecosystem". The reduction of chemical inputs, especially nitrogen fertilizer and broad spectrum insecticides, is a first step.
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).
