Ka tuku hau me tōna pūwāhi tōmairangi 2-8 °C ki te wāhi hangarewa hei whakakore i te tōtā.
He mea matua mō ngā hangarewa mātao me ngā raina PET preform i ngā wheketere haumākū.
Kei te pouaka kotahi te whakamātao, te tango haumākū me te whakawera anō.
Ka tiaki i te mata o te hua, ka aukati hoki i te waikura o te hangarewa puta noa i te tau.
Ngā tuhipoka rārangi
I inehia ngā whakatauranga i ēnei āhuatanga: ko te wai whakamātao e kuhu ana he 12 °C, e puta ana he 7 °C, ko te whakaetonga he 2 °C, ko te tōtā he 50 °C, ko te ine-mahana maroke he 35 °C, ko te ine-mahana mākū he 24 °C. Whakahekea te wai mēnā kei raro iho i te 2 °C te paemahana o te taiao, mēnā rānei ka roa te mīhini e tū ana, hei tiaki i ngā ngongo parahi. Me whakanoho ngā wae whakamātao-hau ki tētahi wāhi pai te rere o te hau (ki runga tuanui, ki waho rānei). Ka panoni pea ngā taipitopito i te whakapainga ake o te hua, kāore he pānui i mua.
