Zida zonse zotsekedwa ndizokhazikika pa hydrolytically ndipo zimagwirizana ndi madzi onse omaliza bwino, kuphatikiza mpweya wothamanga kwambiri.Kusankhidwa kwa zinthu kumachokera pazikhalidwe zosiyanasiyana, kuphatikizapo kutentha kwa pansi, kuuma, kugwedezeka ndi kung'ambika, kuyamwa kwa madzi ndi mpweya wa mpweya, okosijeni, ndi abrasion ndi kukana mankhwala.