Widely used in filtration, is a naturally occuring, highly porous, chalky textured sedimentary rock made mainly of silica and consisting of fossilized remains of diatoms, a type of hard-shelled algae.
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.
Nebulous Italian term usually denoting a wine given extended ageing before release, and suggesting a higher quality, and a higher percentage of alcohol than the normal version of the same wine. The ageing requirement for Riservas varies from DOC to DOC, but normally is a minimum of one year, up to 62 months for Barolo Riserva. In many cases this must include a period in cask, aswell as in bottle.
The heart of the Burgundy wine region in eastern France in the form of an escarpment supporting a narrow band of vineyards for nearly 50km/30miles southwards from Dijon. Viticulturally it is divided into two sectors, the Côte de Nuits and the Côte de Beaune.
French term used to describe grapes which have been dried, or partially dried, before fermentation to increase the sugar content. It is used most commonly in Switzerland and occasionally in the Valle d'Aosta.
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.
Are those which have been subjected to frotification and therefore include Sherry, Port, Madeira, Vermouth, Màlaga, Montilla, Marsala, Liqueur Muscat and Liqueur Tokay.
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.
The connection of two pieces of living plant tissue so that they unite and grow as one plant, has been a particularly important element in growing vines since the end of the 19th century.
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.
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).
Common winemaking practice, named after its French promulgator Jean-Antoine Chaptal, whereby the final alcoholic strength of a wine is increased by addition of sugar to the grape juice or must, before and/or during fermentation, although if it is added before, the higher sugar level will make it harder for the yeast to multiply.
French word for various systems of pumping over. In winemaking terms it is the pumping of the liquid in the fermentation tank over the cap of skins and solids during the red wine fermentation.
Methods of vine training, which vary considerably around the world. The word describes the actions of pruning in winter and summer, and shoot and cane placement, so that the vine's trunk, arms, and cordons and buds are appropriately located on the trellis system.
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.
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.