Pruno

Pruno, or prison wine, is an alcoholic liquid variously made from apples, oranges, fruit cocktail, ketchup, sugar, and possibly other ingredients, including crumbled bread. Bread supposedly provides the yeast for the pruno to ferment. Pruno originated in (and remains largely confined to) prisons and jails, where it can be produced cheaply, easily, and discreetly. The concoction can be made using only a plastic bag, hot running water, and a towel or sock to conceal the pulp during fermentation. The end result has been colorfully described as a "vomit-flavored wine-cooler", although flavor is often not the primary objective. Depending on the time spent fermenting, the sugar content, and the quality of the ingredients and preparation, pruno's alcohol content by volume can range from as low as 2% (equivalent to a very weak beer) to as high as 14% (equivalent to a strong wine).