Verjuice. Green juice. The juice of tiny green, unripe, unfermented grapes, used for culinary purposes. Like lemon juice or vinegar, it is an acidulant, but it is much milder. Keeping verjuice in the bottle will have the same effect as for wine, although the acid flavour will not change. It is versatile and can be used effectively with fish, chicken or to cut fattier foods, or in vinaigrettes and dressings. It is widely used in Iran as a non-alcoholic alternative to wine.