Gin initially comes from a grain base, usually wheat or barley, before producers add botanicals and water. Spirits must have a predominant flavor of juniper berries to be categorized as a gin. In addition to the grain and juniper berries, producers add botanicals, herbs, and spices to give it a distinctive flavor.Gin is a flavored alcoholic beverage with juniper as its predominant flavorant, usually produced by distillation in copper stills traditionally used for spirit production. In addition to juniper, many botanicals, notably coriander, cardamom, orange peel, and angelica root, may be used to add supplemental flavors.London dry gin is made from a base spirit, which is normally made from fermented and distilled wheat or barley but could also be made from grape or potato. The base spirit is flavoured with juniper (the key ingredient to any gin) and a mixture of other plants, herbs, fruits, nuts, spices and roots.