Tsogolo la Mphamvu - Banja Labwino Kwambiri: Zatsopano ndi Zovuta pa Kugulitsa Kugulitsa Masiku Ano - Malo Ogulitsa Mphamvu, Mphamvu Zamphamvu Sikulinso Bzake; Ndi zofunika. Kufunafuna Kokhazikika ndi Mphamvu - Mayankho ogwira ntchito akukula
Kukula bwino komanso kukhazikika kwa mafelemu a PVC kwa omasuka pofunafuna kusinthasintha, kufinya firiji kumafunafuna njira zatsopano. Pakati pa chitukuko izi, mafelemu a PVC kwa ma freezers atuluka