Tereré is an infusion of Erva-Mate, similar to Chimarrão in the South but prepared with cold water (rather than with hot water). Created by the Guaraní indigenous people who lived in Paraguay and the Pantanal region, Tereré was spread and for centuries was a social beverage. People usually prepare one jar of natural water and a “cuia” with a “bomba” which is shared among the group of people. Since the Pantanal regions has a very hot climate, this drink is excellent to refresh the body and can be considered a very low-calorie, non-alcoholic beverage. Additionally, it is an important ritual signifying trust and communion.
Erva Mate (Ilex paraguariensis) is a species native to subtropical South America in southern Brazil. The Erva mate plant is a shrub or small tree growing up to 5 meters tall. The leaves are evergreen, 7–11 cm long and 3–5.5 cm wide. The leaves are used to make a infusion hot tea named Chimarrão or its cool version Tereré.