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 4000
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. Some white wine
is also made from grapes with coloured skin, provided that the obtained
wort is not stained. Pinot noir, for example, is commonly used to
produce champagne.
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