Grape Varieties

Commercially grown grapes can be classified as either table or wine grapes depending on their intended use: eaten raw (table grapes) or used to make wine (wine grapes). While almost all of them belong to the same species, Vitis vinifera, table and wine grapes have significant differences brought about by selective breeding. Table grape varieties tend to have large, seedless fruits (see below) with relatively thin skins. Grapes are smaller, usually seeded, and have a relatively thick skin (a desirable trait in winemaking since much of the aroma in wine comes from the skin). Grapes are also very sweet: they are harvested when their juice contains approximately 24% by weight contains sugar. In comparison, commercially produced "100% grape juice" made from table grapes usually contains about 15% by weight Zucker