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. 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.