Encountering double purpose grapes in the supermarket

This is a box of Black Corinth grapes bought at the supermarket the other day. To be truthful, apart from its use as eating grapes and as the second component of Mavrodaphne of Patras, Black Corinth are used mainly for drying into currants. But this is not the only time I have encountered grapes for wine and table in local supermarkets. Some one has sold (and I forgot which supermarket) Korean Campbell Early under its Korean synonym for the table, but then Campbell Early is not a common Western wine grape. However, Muscat of Alexandria is, and I remember seeing it in the supermarket section of a Japanese department store

Of course your common or garden table grape can be made into wine by an adventurous (or simply mad) winemaker. I had blogged about a wine made from Kyoho grapes, which can be found in Japanese supermarkets, the supermakret sections of Japanese stores and increasing in fruit stores (usually mainland or Taiwan grown versions). Of course the commonest table grape, which is sometimes made into wine, to be found in supermarkets as table grapes is Thompson Seedless, a white seedless grape which is also dried into "raisins" usually called by its synonym Sultana.