French. Abbreviation for Appellation d’origine contrôlée (controlled designation of origin)
A
A.O.C.
A.P. number
German. Abbreviation for Amtliche Prüfnummer which is Germany’s attempt to reduce massive confusion generated from most German wine labels. It is a unique, official number designating region, village, estate, unique bottling number, and year of tasting (usually the year after the vintage).
Acid
Acidity
The quality of tartness, sourness and sharpness that gives wine its crispiness and vitality. A proper balance of acidity must be struck with the other elements of a wine, or else the wine may be said to be too sharp (having disproportionately high levels of acidity) or too flat (having disproportionately low levels of acidity).
Acrid
A tasting term for wine with too much acidity.
Aftertaste
A tasting term for the taste left on the palate after wine has been swallowed.
Aging barrel
A barrel, often made of oak, used to age wine or distilled spirits.
Alcohol
Ethyl alcohol (C2H5OH) is produced by the action of natural or added yeast on grape sugars during fermentation.
Altar wine
The wine used by the Catholic Church in celebrations of the Eucharist.
Alternative wine closures
Various substitutes used in the wine industry for sealing wine bottles in place of traditional cork closures.
American hybrid
Grape varieties which have been crossbred from American and European vines.
Ampelography
The branch of botany concerned with identification and classification of grapevines. Traditionally this was done by comparing the shape and color of vine leaves and grape berries. It has been revolutionized by DNA fingerprinting.
Amphora
A type of ceramic vase, used for transporting and storing wine in ancient times.
Angel’s share
The portion of a wine in an aging barrel that is lost to evaporation.
Anthocyanin
Phenolic pigments that give red wine its color.
Appellation
A recognised wine-growing region.
Aroma
The smell of a wine. The term is generally applied to younger wines, while the term bouquet is reserved for more aged wines.
Ascorbic acid
A natural component found in wine that is sometimes added to prevent oxidation occurring. If ascorbic acid (Vitamin C) has been added, the wine label will show Antioxidant 300 added.
Astringent
ATF
Abbreviation for the Bureau of Alcohol, Tobacco and Firearms, a United States government agency which is primarily responsible for the regulation of wines sold and produced in the United States.
Austere
Generally meant to indicate a wine that has flavors that are closed. In other words, without strong recognizable varietal or oak characters.
B
Balance
Barrel
A hollow cylindrical container, traditionally made of wood staves, used for fermenting and aging wine. Today these may be of cement, plastic, stainless steel or oak. Oak barrels allow the wine to mature and breath while adding natural tannin and flavors such as vanilla or toast. Sometimes called a cask.
Barrique
The French name for a 225 litre Bordeaux-style barrel (Bordeaux hogshead). Will yield 24 cases of 12 bottles each.
Baum
A measure of the sugar concentration in the juice or wine.
Beeswing
A light sediment, chiefly mucilage, a gummy substance obtained from certain plants found in Port.
Bentonite
A type of clay used in wine clarification.
Berthomeau Report
Commissioned by French Ministry of Agriculture to better position the wine industry for the future.
Biodynamic wine
Wines produced by the principles of biodynamic agriculture, a method of organic farming.
Bitterness
One of the main taste sensations, usually detected at the back of the tongue after swallowing. Phenolic substances are the main source of bitterness in wine, and come from wood (oak) and the grape.
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Glossary by Letter
The Wine Grapes of Switzerland
Marsanne Blanche
Originally from the steep slopes of the Côtes-du-Rhône, the Marsanne blanche grape found its way up the Rhone to Valais in Switzerland, and is known here under the name of Ermitage (or Hermitage).
Sémillon
Hard to believe that Sémillon’s main claim to fame is its propensity to rot, but because of its soft skin Sémillon is prone to Botrytis cinerea (a.k.a. “noble rot”). The “rot” concentrates the acid and sugar in the grape, and the resulting wine can be complex, rich, sweet, and aromatic. In short: pretty damn nice. The best known of this sweet style wine is Sauternes, coming from the Sauternais region of the Graves, near Bordeaux in France.
Sémillon can also make an elegant dry white wine, but since it can be short on acidity, it is often vinified with Sauvignon blanc.
Mondeuse
An old red grape variety well known in neighboring Savoie, Mondeuse is a rarity found in scattered plots in Chablais (Vaud).
Wine is a peep-hole on a man.
Alcaeus
