 "wine, grape")
We know that wine is most commonly made from grapes, that grapes are the fruit of the common grape vine (scientific name: vitis vinifera), and that wine grapes differ from table grapes in terms of sugar-acid balance and flavour characteristics.
The uninitiated would be amazed to know that there are between 5,000 and 10,000 varieties of vitis vinifera — 1,368 have been described in a recent book co-authored by British Master of Wine Jancis Robinson — but only a few are used to make wine in commercial quantities. Of these, about 30 varietals make up 90 per cent of the wines
