1. He kaha te kaha o te mata wiri porowhita ki te tukatuka i ngā rauemi, e penapena ana i te wā me te tino whai hua o te tirotiro.

2. Ina whakamahia te mata wiri porowhita, ka kitea te iti o te kawenga o te peera, ā, he iti ake te haruru. He mea nui kia kaua e neke ake te pāmahana o te peera i te 35 nekehanga Celsius. Ko te take he angiangi te hinu whakahinuhinu o te peera, ā, he hanganga rerekē te poraka o waho.

3. Ina whakakapia te mata wiri porowhita, he watea, he tere, he rite ki te wetewete i tetahi wa, ā, he tino poto te wa.

4. I roto i te mīhini tātari, ka whakamahia te puna rapa hei utu mō te puna whakarewa, ka roa ake te ora o te mahi, ā, he pumau ake i te puna whakarewa ina nui rawa te rohe wiri.

5. Ka hono te mata wiri porowhita i te motuka me te whakaoho ki te hononga ngāwari, ka whakaiti i te pēhanga ki runga i te motuka, ka roa ake hoki te ora ratonga.

6. Ko te pereti taha o te mīhini wiri porowhita he mea hanga mā te tikanga mahi matao pereti katoa, nō reira he roa ake te ora mahi. Hei tāpiri, ko te kurupae me te pereti taha he mea hono mā te pūtu me te kutikuti ārai-torsion, ā, kāore he āputa whakarewa, ā, he pai, he ngāwari hoki te whakakapi.