Pisco is a South American wine spirit. A subject of much dispute between the neighbouring nations of Chile and Peru, pisco has several distinct styles. Chilean pisco is characterised by the almost exclusive use of the Muscat grape variety and a classification based on alcohol content: Regular, Special, Reserve and Great. Peruvian pisco is made from a single distillation and from several different grape varieties; it is categorized by degree of flavour: aromatico, puro and acholado. It often has a more rustic character.