Ginger beer is a type of carbonate alcoholic beverage or soft drink, flavoured primarily with ginger, lemon and sugar. It originated in England in the mid 1700s, and it reached its peak of popularity in the early 1900s. The original recipe requires only ginger, sugar, and water, to which is added a gelatinous substance called "ginger beer plant" (see below). Fermentation over a few days turns the mixture into ginger beer. Lemon may be added.