Tereré is claimed above all by neighbouring Paraguay, where the practice of drinking it with crushed medicinal herbs (pohã ñana) was added to UNESCO's intangible heritage list in 2020.
Yerba mate leaves steeped with ice-cold water or fruit juice instead of hot water, sipped through the same metal straw and gourd used for hot mate. It's carried in a thermos of cold water and shared on the street or at market stalls throughout the day.