Ko e saafa ko e fuʻu ʻakau siʻi ia, ko e mohuku ia. Naʻe ʻomi ki Tongá ni mei ʻAfelika, naʻe pehē ko e ngaahi tenga ʻi he kofukofu saafa (lea fakapilitānia: chaff). Ko e mohuku ʻoku lava tupu mita ʻe 4 ʻi olunga, ʻoku vaoa mo e taʻefiemaʻu. Ko hono ngaahi ʻuhinga tatau: Megathyrsus maximus mo Urochloa maxima.