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He pai tēnei ipu rūma wai mō ngā kai kua tākai korehau me ngā kete ngāwari.
Ko te retort rumaki wai he taputapu tukatuka wera motuhake e whakamahia whānuitia ana i roto i ngā ahumahi kai, rongoā, me te inu hei whakatutuki i te hua koretake o ngā hua kua takaihia, hei whakamātao rānei. Ko tōna kaupapa matua ko te tuku i ngā ipu hiri (hei tauira, ngā kēne, ngā ipu, ngā pēke) ki roto i te kaukau wai whakahaeretia, kātahi ka whakamahana/whakamatao i te wai kia taurite te whakawhiti wera ki te hua—kia mau tonu ai te haumaru o ngā moroiti me te pupuri i te kounga. -
Whakautu Ruku Wai
Ka whakamahia e te retort rumaki wai te hangarau whakawhiti rere wai ahurei hei whakapai ake i te ōritetanga o te pāmahana i roto i te ipu retort. Ka whakaritea te wai wera i mua i roto i te tāke wai wera hei tīmata i te tukanga whakahoromata i te pāmahana teitei me te whakatutuki i te pikinga tere o te pāmahana. I muri i te whakahoromata, ka hangarua te wai wera ka papua anō ki te tāke wai wera hei whakatutuki i te kaupapa o te penapena hiko.