He mea nui te takai rongoā i roto i te umanga rongoā, ā, he mea nui ki te whakarite i te haumaru, te whai huatanga me te kounga o ngā rongoā. Ko te kaupapa o ngā kiriata rongoā he tiaki i ngā rongoā mai i ngā āhuatanga taiao, te poke, me ngā kino ā-tinana, me te whakarato i ngā mōhiohio e tika ana mō te whakamahinga haumaru. Ko PVC (polyvinyl chloride) te rauemi e whakamahia whānuitia ana i roto i ngā takai rongoā. Koia te take e tuku ana a HSQY Plastic i te whānuitanga o ngā kiriata takai, tae atu ki te kiriata PVC PVC pakari, te kiriata PVC / PVDC , te pepa konumohe, me te kiriata PVC / PVDC /PE hei takai i ngā rongoā.