Downy mildew attacks all green parts of the vine and young leaves are particularly susceptible. When severly affected, leaves will drop off. The loss of leaves reduces photosynthesis and thus causes delays in fruit ripening and, typically, levels of fruit sugars, vine reserves of carbohydrates, and anthocyanins are depressed.
Often abbreviated to MLF or malo, is the conversion of stronger malic acid anturally present in new wine into lactic acid (which has lower acidity) and carbon dioxide.
Translates directly from French as a wine that is naturally sweet. Vins doux naturels are made by mutage, by artificially arresting the conversion of grape sugar to alcohol by adding spirit before fermentation is complete.
Winemaking operation of breaking open the grape berry so that the juice is more readily available to the yeast for fermentation and to increase the pulp and skin contact.
Term in common parlance, but not in federal law, in the US that suggests loosely that the wine came entirely from grapes farmed on the winery's own property.
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.
Is the uniquely steely, dry, age-worthy white wine of the most northern vineyards of Burgundy in north east France, made, like all fine whites Burgundy, from Chardonnay grapes.
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.
An expression much used of that part of the Bordeaux wine region that is on the right bank, or north, of the river Dordogne. It includes, travelling down river, Castillon Côtes de Bordeaux, Francs Côtes de Bordeaux, St-Émilion and its satellite appellations, Pomerol and Lalande-de-Pomerol, Fronsac and Canon-Fronsac, Bourg, and Blaye.
Increasingly popular and currently fashionable winemaking practice known to the Ancient Romans whereby newly fermented wine is deliberately left in contact with the lees. This period of lees contact may take place in any container, from a bottle to a large tank or vat-although a small oak barrel is the most common location for lees contact.
Wine trade term, French in origine, for wine sold as futures before being bottled. It comes from the word primeur. Cask samples of wines have customarily been shown in the spring following the vintage.
