Pirassununga is a major brand of Cachaça, Brazil's national spirit. The brand's most popular product is Pirassununga 51, a name so iconic that it has become nearly synonymous with the spirit itself in Brazil. Cachaça is a distilled spirit made from fermented sugarcane juice, and it is a key ingredient in the famous Caipirinha cocktail.

The brand's name comes from the city of Pirassununga in São Paulo state, where the company, Indústria de Bebidas Pirassununga, is headquartered. The number 51 refers to the year 1951, when a batch of the cachaça was deemed particularly exceptional by the master distiller and earned its name. This particular distillation quickly gained a reputation for its quality and smoothness, leading to its widespread popularity.

Pirassununga 51 has been a cultural icon in Brazil for decades, known for its distinctive taste and a memorable slogan that translates to "51, a good idea." The brand is celebrated for its commitment to tradition while also embracing modern production methods to ensure consistent quality. Today, Pirassununga is exported globally, introducing the authentic taste of Brazilian cachaça to an international audience.