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.
Is a complex of sensations resulting from the shrinking, drawing, or puckering of the tissues of the mouth. The most important astringent materials are tannins.
Very large group of highly reactive chemical compounds of which phenol is the basic building block. These include many natural colour pigments such as the anthocyanins of fruit and dark-skinned grapes, most natural vegetable tannins such as occur in grapes, and many flavour compounds.
Is by German law a rosé wine at least 95% of which is made by direct pressing of a single red wine grape variety named on the label (Spätburgunder and Portugieser are especially common).
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.
Known as Bourgogne in French, province of eastern France famous for ist great red and white wines produced mostly from Pinot Noir and Chardonnay rapes respectively.
Imprecise tasting term used in many languages for a distinctive style of wine, often fortified wine or vin doux naturel, achieved by deliberately maderizing the wine by exposing it to oxygen and/or heat.
French term for punching down, the winemaking operation of breaking up and submerging the cap of skins and other solids during red wine fermentation to stop the cap from drying out.
Meaning literally "yellow wine" in French, extraordinary style of wine made in France, mainly in the Jura region, using a technique similar to that used for making Sherry but without fortification.
Ultratradaitional method of red wine fermentation in which grape berries are not subjected to destemming. This was the default position before the introduction of the crusher-destemmer. The possible disadvantages are that, unless the stems are vey ripe, i.e. well lignified, and the must is handled very gently, the stems may impart harsh tannins to the wine.
Or Melon de Bourgogne, the most planted grape variety in the Loire valley, planted on 10798ha/26671acres in 2011 and famous in only one respect and one region, Muscadet.
