Making Money From Unripe Wine Grapes

Verjus
Verjus is an ancient, unfermented food elixir made from unripe grapes. The clear pale-green liquid is widely used in European and Persian cooking as a vinegar or lemon-juice substitute.

Wine grape growers traditionally remove green grapes, so vines can focus their energies on the remaining crop. By rediscovering verjus, Alexander Gelles has found a way of taking a vineyard waste product and making something useful and maybe a new revenue. Full Article