Commonly used term for controlled origin and quality designations for wine, often following the example of the French Appellation Contrôlée (AC). They are always based on a geographical definition.
French term meaning "on the lees", customarily applied to white wines whose principal deviation from everyday white winemaking techniques was some form of lees contact.
The process of deliberately maturing a wine after bottling, whether for a few weeks as a conscious effort on the part of the bottler to allow the wine to recover from bottle sickness or, in the case of very fine wines, for many years in order to allow the wine to mature.
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.
Literally "individual site" in the wine regions of Germany. Almost all of Germany's vineyards are officially registered as one of these approximately 2600 Einzellagen, which can vary in size from a fraction of 1 ha to more than 200 ha/494 acres. As in Burgundy, for example, the Einzellagen may be divided among many different owners.
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.
Even in Ancient Rome it was said Bacchus amat colles, or Bacchus loves the hills, suggesting that hillside vineyards have long been regarded as a source of high-quality wine.
A common plant acid, abundant in some fleshy fruits such as lemons, but rare in grapes. The grape is unusual among fruits in that its major acid is tartaric acid, rather than citric acid, whose concentration in the juice of most grape varieties is only about one-twentieth that of tartaric acid.
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.
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.
Extremely popular sparkling wine made in the region of Veneto, located north-east of Italy. The DOC was once an IGT. To ensure that no one outside the region was able to jump on the luctrative Prosecco bandwagon, the grape variety was renamed Glera in 2009, and Prosecco was registered as a protected denomination of origin DOC.
The general term used by winemakers to describe the harmless crystalline deposits that separate from wines during fermentation and ageing. The principal component of this deposit is potassium acid tartrate, the potassium salt of tartaric acid, which has therefore given rise to the name.
Microscopic, single-celled fungi, having round to oval cells which reproduce by forming buds, are vital to the alcoholic fermentation process, which, starved of oxygen, transforms grape juice to wine.
French wine term derived from cuve, with many different meanings in different contexts. In general terms it can be used to mean any containerful, or even any lot, of wine.
One of the most important wine rivers, linking a range of vineyards as dissimilar as those of Châteauneuf-du Pape in southern France, sparkling Seyssel, and Fendant du Valais in Switzerland.
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).