What are the different forms of grapevine?

Grapevines can be classified into several forms, including table grapes, wine grapes, and raisin grapes. Table grapes are typically larger, seedless, and sweeter, meant for direct consumption. Wine grapes are smaller, often with seeds, and have higher acidity and sugar content, suitable for fermentation. Raisin grapes are dried varieties specifically cultivated for producing raisins.