Essential element for healthy vine growth. A deficiency of zinc affects the plant's ability to synthesize the hormones auxins, deficiency in which results in a failure of the shoots to grow normally.
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 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.
The final addition to a sparkling wine which may top up a bottle in the case of traditional method wines, and also determines the sweeteness, or residual sugar, of the finished wine. A mixture of wine and sugar syrup.
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.
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.
Traditional Bordeaux measure of wine volume, once a large woodes cask holding 900 lit., or 252 imperial wine gallons, the equivalent of four barriques.
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.
Village in the Côte de Beaune district of Burgundy's Côte d'Or tucked out of the limelight between Meursault and Puligny-Montrachet. A high production, two-thirds, of the vineyards area is designated premier cru, notably Les Charmois, La Chantenière, En Remilly and Les Murgers Dents de Chien.
French for "white of blacks", describes a white wine made from dark-skinned grapes by pressing them very gently and running the pale juice off the skins as clear as possibl.
One of the two principal organic acids of grapes and wines. Ist name comes from malum, Latin for apple, the fruit in which it was first identified. Present in nearly all fruits and berries.
Or insert, planks of wood, usually oak, placed in a stainless steel tank and held in position by a metal framework, are a way of imparting oak flavour to wine more cheaply than by fermenting or ageing in barrels since the staves are easily replaced.
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.
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 the name used by winemakers for a thick liquid that is neither grape juice nor wine but the intermediate, a mixture of grape juice. Stem fragments, grape skins, seeds, and pulp that comes from the crusher-destemmer that smashes grapes at the start of the winemaking process.
The principal milk protein, is used by winemakers as a fining agent particularly useful for removing brown colours from white wines. It is used also in the clarification of young wines.
System of fractional blending used most commonly in Jerez for maintaining the consistency of a style of Sherry which takes ist name from those barrels closest to the suelo, or floor, from which the final blend was customarily drawn.
Town north of Perpignan in southern France that gives ist name to two of the biggest appellations of Roussillon, Rivesaltes and Muscat de Rivesaltes, both of them vins doux naturels.
Spring and summer time viticultural practice of placing vine shoots in the desierd position to assist in trimming, leaf removal, and harvest operations, and to facilitate the control of vine diseases and vine pests.
