Nā runga i te whakamahere pūnaha, e whai ake ngā waka H2SO4 mō te hīkoi i te āpure karuwāhi, he rongoā nui rawa atu me te mate. E hanga ana ngā pokonui i runga i ngā matāwhero e pai ana ki te tautohe āpure, pērā i ngā toto kōmuri 316 rānei, nō reira i whakatakoto i runga i ngā taonga takirua. Kua oti i te whakatū i ngā āhuatanga haumaru nui, e kite ana i ngā kauwhau rua-kiri hei whakanoho i ngā wehe, ngā pūtomo whatiwhati ā-wāhanga, me ngā rautaki whakamatau wehe. Nā te hanga pūnaha i ngā rākau whakamahi me te whakamana i te tiaki i ngā take wehe. He mea nui ngā waka H2SO4 mō ngā whenua pūnaha, ka mahi i roto i te hiko i ngā rongoā pūnaha, i te kuhu whenua, me te whakaputa taihotanga, e āhei ana ki te hīkoi pai o tēnei rongoā noa.