Zvinoenderana nezvinhu zvakasiyana, firimu rekudya rinonyanya kukamurwa kuita mapoka maviri:

Rudzi rwekutanga ndeye polyethylene cling film, PE firimu rekudya kwenguva pfupi.Nyaya iyi inonyanya kushandiswa kurongedza chikafu.Zvibereko, miriwo, uye chikafu chehafu-chakapedzwa zvigadzirwa zvinowanzoiswa mumhando iyi yefirimu rekudya.

Rudzi rwechipiri ndeyePVC yekudyara firimu kwenguva pfupi.Ichi chinyorwa chinogona zvakare kushandiswa kurongedza chikafu, asi chine kumwe kukanganisa pakuchengetedza kwemuviri wemunhu.

Pane mimwe misiyano pakati pePE cling film nePVC firimu rekudya.Mhando mbiri dzefirimu dzekudya hadzina ruvara uye dzakajeka.Kazhinji, iyo yakananga yekuzivikanwa nzira ndeyekuziva kuburikidza nekurongedza kwekunze kweiyo firimu rekudya.

Kuonekwa kwePVC firimu rekudya rinonyanya kujeka kupfuura PE firimu rekudya, uye rinoburitsa utsi hutema mushure mekupisa nekupisa pasina kudonha mafuta.Pane zvinopesana, mushure mokunge PE firimu yezvokudya ichipisa uye ichipiswa, haizove nekunhuhwirira kunoshamisa uye ichadonha mafuta.

PE firimu rekudya rinogona kushandiswa kupisa microwave.Nekuda kwezvakasiyana zvimiro zvezvakagadzirwa, PE cling firimu inopokana nekupisa kwakanyanya.Mazhinji maovheni ewa microwave ane magetsi emoto akasiyana.Paunenge uchibika muchoto chewa microwave, chero bedzi iwe uine chokwadi chekuti uri kushandisa PE firimu yekudya, haufanirwe kunetseka nezve zvinokuvadza zvinhu.