The preparation of mate is a very simple process which consists of filling the gourd with yerba, pouring hot but not boiling water over the leaves, and drinking with a straw, the bombilla, which acts as a filter so as to draw only the liquid and not the yerba leaves.ea-bag type infusions of mate (Spanish: mate cocido, Portuguese: cha chá) mate have been on the market In, Argentina paraguay And uruguay for many years under such trade names As taraguei Taragüi, In argentina Pajarito and Kurupi, kurupí In Paraguay and Matte. leao leão in brazil