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Representative figures for the amount of grapes needed for 100 L of wine are 160 kg for white wine, 130 kg for red wine, and 140 kg for a mixture of red and white wine. [1] Thus: [2] for white wine, 100 hl/ha ≈ 16,000 kg/ha (16 t/ha) = 6.5 tons per acre. 1 ton per acre = 2470 kg/ha ≈ 15 hl/ha
The vast majority of red wine grapes, like the Grenache, express white juice, with the red color of red wines coming from the grape's skin as part of the winemaking process. Teinturier grapes are grapes whose flesh and juice are red in colour due to anthocyanin pigments accumulating within the pulp of the grape berry itself. [1]
The process of fermentation in winemaking turns grape juice into an alcoholic beverage. During fermentation, yeasts transform sugars present in the juice into ethanol and carbon dioxide (as a by-product). In winemaking, the temperature and speed of fermentation are important considerations as well as the levels of oxygen present in the must at ...
Pressing (wine) Viognier juice in the press pan after being pressed. In winemaking, pressing is the process where juice is extracted from the grapes with the aid of a wine-press, by hand, or even by the weight of the grape berries and clusters. [1] Historically, intact grape clusters were trodden by feet but in most wineries today the grapes ...
Red wine is made from the must (pulp, including the juice) of red or black grapes and fermentation occurs together with the grape skins, which give the wine its color. White wine is made by fermenting juice which is made by pressing crushed grapes to extract a juice; the skins are removed and play no further role. Occasionally, white wine is ...
Chambourcin is a teinturier, a grape whose juice is pink or red rather than clear like most red vitis vinifera cultivars. The red juice fermented over the red skins can produce a very strongly flavoured wine. Most red wines are served at cellar temperature of 55 to 58 °F (13 to 14 °C) to bring out the flavour but some Chambourcin wines have ...
Spanish winemaking term describing a wine that is macerated with double the normal ratio of grape skins to juice. This is achieved by the winemaker bleeding off and disposing of extra juice in order to increase the ratio of grape skin and concentration of phenolic compounds. Doppelstück A German oak barrel that holds 635 gallons (2,400 liters).
Grape juice. Grape juice is obtained from crushing and blending grapes into a liquid. In the wine industry, grape juice that contains 7–23 percent of pulp, skins, stems and seeds is often referred to as must. The sugars in grape juice allow it to be used as a sweetener, and fermented and made into wine, brandy, or vinegar.