(of Guaraní origin) is an infusion of (botanical name Ilex paraguariensis) prepared with cold water, a lot of ice and pohá ñaná (medicinal herbs), and in a slightly larger vessel. This infusion has its roots in Pre-Columbian America, which established itself as traditional during the time of Governorate of Paraguay. The Guaraní people call this infusion ka'ay, where ka'a means herb and y means water. There's also a variant made with juice, called "Juice tereré" or "Russian tereré", depending on the region. On December 17, 2020, UNESCO declared the tereré of Paraguay as an intangible cultural heritage, which includes the drink (tereré) and its preparation methods with medicinal herbs (pohá ñaná). It is similar to —a drink also based on yerba mate—but with the difference that tereré is consumed cold, preferably in the warmer areas of the Southern Cone. It is traditional from Paraguay, where it's considered a cultural icon. In recent decades it has become popular in some areas of Southern Brazil, in Eastern Bolivia and in Argentina (countries where the tereré of juice is more popular than the tereré of water). Both refreshing or medicinal herbs are often added, such as pererina, cocú, mint, sarsaparille, horsetail family, burrito, agrial or wax begonia, batatilla, verbena, spikesedges, ajenjo, slender dayflower, escobilla, lemon balm, saffron crocus, ginger, taropé, perdudilla blanca and others. Currently, in Paraguay exist various franchises that sell flavored ice based on medicinal-refreshing weeds/fruits for consumption in the tereré. The tereré was declared the official drink of Paraguay and also the Cultural Heritage of the Nation. Every last saturday of february the "National Tereré Day" is celebrated. By Resolution 219/2019, the National Secretariat of Culture declared the Traditional Practices and Knowledge of the Tereré in the culture of the Pohã Ñana as the National Intangible Cultural Heritage. On the other hand, the city of Itakyry is the permanent headquarters of the "Festival of Tereré" since 1998. History Originally consumed by the Guaraní, its use was adopted during the Guaraní-Jesuit Missions time in the area of their missions. Tereré was spread by the emigrants, and has been a social beverage for centuries. People usually prepare one jar of water and a (or , or ) (Spanish) or (Portuguese) with a (Spanish) or (Portuguese) which is shared among the group of people. The area of the Guaraní-Jesuit Missions has a fairly hot climate and this drink is believed to refresh the