Ko nga whakaputanga o te raina hangahanga maroke engari ko te DMF kei roto ano hoki he kakara, he ketones, he wairewa lipids, he ngoikore te whakauru o te wai parakore i runga i taua momo whakarewa, kaore he painga.I whakawhanakehia e te Kamupene te tukanga whakaora whakarewa maroke hou, i hurihia e te whakauru o te wai katote hei mimiti, ka taea te recycled i roto i te hau hiku o te hanganga whakarewa, a he nui te painga ohaoha me te painga tiaki taiao.