He pai te kawe hiko o te parahi, te werawera, te ngawari, te kaha hohonu me te aukati waikura. te kawe o te parahi me te
He tuarua ana te kawe werawera ki te hiriwa, ka whakamahia nuitia ki te hanga taputapu kawe hiko me te waiariki. parahi i roto
Ko te hau, te wai moana me etahi waikawa kore-waiora (waikawa maataota, waikawa sulfuric dilute), kawakore, wairewa tote me etahi atu.
He pai te aukati i te waikura i roto i nga waikawa waro (waikawa acetic, waikawa citric) ka whakamahia ki te umanga matū.