A rosé (ʁoze) is a type of wine that incorporates some of the color from the grape skins, but not enough to qualify it as a red wine. It may be the oldest known type of wine, as it is the most straightforward to make with the skin contact method. The pink color can range from a pale "onionskin" orange to a vivid near-purple, depending on the grape varieties used and winemaking techniques. Usually, the wine is labelled rosé in French, Portuguese, and English-speaking countries, rosado in Spanish, or rosato in Italian.
There are three major ways to produce rosé wine: skin contact, saignée, and blending. Rosé wines can be made still, semi-sparkling or sparkling and with a wide range of sweetness levels from highly dry Provençal rosé to sweet White Zinfandels and blushes. Rosé wines are made from a wide variety of grapes and can be found all around the globe.
When rosé wine is the primary product, it is produced with the skin contact method. Black-skinned grapes are crushed and the skins are allowed to remain in contact with the juice for a short period, typically two to twenty hours. The grape must is then pressed and the skins discarded, rather than left in contact throughout fermentation (as with red wine making). The longer the skins are left in contact with the juice, the more intense the color of the final wine.
When a winemaker desires to impart more tannin and color to red wine, some of the pink juice from the must can be removed at an early stage in what is known as the Saignée (from French bleeding) method. The red wine remaining in the vats is intensified as a result of the bleeding, because the volume of juice in the must is reduced, and the must involved in the maceration becomes more concentrated. The pink juice that is removed can be fermented separately to produce rosé.
The simple mixing of red wine into white wine to impart color is uncommon and is discouraged in most wine growing regions, especially in France, where it is forbidden by law, except for Champagne.
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The aging of wine is potentially able to improve the quality of wine. This distinguishes wine from most other consumable goods. While wine is perishable and capable of deteriorating, complex chemical reactions involving a wine's sugars, acids and phenolic compounds (such as tannins) can alter the aroma, color, mouthfeel and taste of the wine in a way that may be more pleasing to the taster. The ability of a wine to age is influenced by many factors including grape variety, vintage, viticultural practices, wine region and winemaking style.
Zinfandel (also known as Primitivo) is a variety of black-skinned wine grape. The variety is grown in over 10 percent of California vineyards. DNA analysis has revealed that it is genetically equivalent to the Croatian grapes Crljenak Kaštelanski and Tribidrag, as well as to the Primitivo variety traditionally grown in Apulia (the "heel" of Italy), where it was introduced in the 18th century, and Kratošija in Montenegro.
White wine is a wine that is fermented without skin contact. The colour can be straw-yellow, yellow-green, or yellow-gold. It is produced by the alcoholic fermentation of the non-coloured pulp of grapes, which may have a skin of any colour. White wine has existed for at least 4,000 years. The wide variety of white wines comes from the large number of varieties, methods of winemaking, and ratios of residual sugar. White wine is mainly from "white" grapes, which are green or yellow in colour, such as the Chardonnay, Sauvignon blanc and Riesling.
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