Isikhwama sokuvala esinezinhlangothi ezintathu se-aluminium foil sokuvala ukudla okuphekiwe singenye yezinto ezifanele ukupakisha ukudla, ikakhulukazi ukudla okufana nokudla okuphekiwe kanye nenyama.Impahla ye-aluminium foil yenza ukudla njll. kugcinwe kangcono.Ngesikhathi esifanayo, iyanelisa izimo zokufuduka kanye nokushisa kwamanzi okugeza, okulungele ukusetshenziswa kokudla.