Ikhoyili egoqiwe eshisayo isho ukucindezelwa kwamabhilidi kugqinsi olufunwayo lwensimbi emazingeni okushisa aphezulu. Ekugoqeni okushisayo, insimbi iyagoqwa ngemva kokushiselwa esimweni sepulasitiki, futhi ingaphezulu lingase libe ne-oxidized futhi libe mahhadla. Amakhoyili agoqwe ashisayo ngokuvamile anokubekezela okukhulu kobukhulu namandla aphansi nobulukhuni, futhi afanele izakhiwo zokwakha, izingxenye zemishini ekukhiqizeni, amapayipi neziqukathi.