The practice of adding spirits, usually grape spirit, to wine to ensure microbiological stability, thereby adding alcoholic strength and precluding any further fermentation.
An instrument for measuring a refractive index, which is related to the amount by which the angle of a light wave is changed when passing through the boundary between two media. The amount of refraction is a convenient way to measure solute concentration of a solution and is widely used in viticultural and winemaking to follow the ripeness of grapes and changes during vinification.
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.
Bouillie bordelaise in French, once much-used mixture of lime, copper sulfate, and water first recorded in 1885 by Alexis Millardet, as an effect control of downy mildew.
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.
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).
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.
Appellation abutting Gevrey-Chambertin in the Côte de Nuits district of Burgundy, producing red wines of a similar style to ist neighbour, though currently of lesser fame.
Widely used French term for a specialist wine waiter or wine steward. The sommelier's job is to ensure that any wine ordered is served correctly and, ideally, to advise on the individual characteristics of every wine on the establishment's wine list and on food and wine matching.
Is hard and supple, and most oaks have watertight wood, which has the simple advantage over other wood types used for cooperage of displaying a natural affinity with wine, imparting qualities and flavours that today's consumers appreciate as enhancing or complementing those of many wines.
The lightest in terms of must weight and alcohol among the trio of dry white wine categories in Austria's Wachau region-specifically for unchaptalaized grapes of 73 to 83° Oechsle which result in wines no more than 11% alcohol. The name comes from a feathery grass species indigenous to the local vineyard terraces.
The higher, southern part of the Médoc district of Bordeaux which includes the world-famous communes of Margaux, Pauillac, St-Estèphe and St-Julien, as well as the less glamorous ones of Listrac and Moulis.
Important French port on the Garonne River. Bordeaux gives ist name to a wine region that includes the vineyards of the Gironde département and, as such, the wine region that produces more top -quality wine than any other region.
Term often used in France, particularly in Bordeaux, for the cellermaster, as opposed to the régisseur, who might manage the whole estate, or certainly the vineyards.
Sometimes known as grey mould and sometimes just rot, the malevolent form of botrytis bunch rot and one of the most harmful of the fungal disease that attack vines. In this undesirable bunch rot form, the botrytis cinerea fungus rapidly spreads throughout the berry flesh and the skin breaks down.
French word for the important operation in the production of fine wines of deciding which lots will be assembled to make the final blend. It plays a crucial role in sparkling winemaking when some cuvées may be assembled from several hunderd different components.
Or bâtonnage, as it is called in French, is the once fashionable winemaking operation of mixing up the lees in a barrel, cask, tank or vat with the wine resting on them. It is an optional addition to the process of lees contact and is often employed, particularly for whites which have undergone barrel fermentation. Usually done with a stick. Stirring up the lees in the barrel also effects oak flavour.
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.
Chemicals applied to vineyards to control the growth of weeds. They may be either pre-emergent (or residual) or post-emergent (knockdowm). The latter group comprises two types, contact and syntemic herbicides. Residual herbicides act against germinating seedlings of the weeds, while post-emergent herbicides are applied only to the strip of ground directly under the vine, and weeds growing between the rows are controlled by cultivation or mowing.
