Kula da zafin jiki yana da mahimmanci a cikin tsarin shirye-shiryen kwalta. Idan kwalta zafin jiki ne ma low, da kwalta danko zai zama high da ductility zai zama kasa, yin emulsification wuya. Idan zafin kwalta ya yi yawa, a daya bangaren kuma, zai haifar da tsufan kwalta, sannan a daya bangaren kuma, zafin fitar da kwalta zai yi yawa, wanda hakan zai shafi natsuwar na’urar da ingancin kwalta. .

Bayan da aka yi amfani da kayan aikin kwalta na dogon lokaci, tazarar injin kwalta ta kwalta za ta yi girma. Idan wannan lamarin ya faru, kawai daidaita ratar da hannu. Hakanan yana iya zama cewa an sami matsala tare da kwalta. Gabaɗaya, ƙirar kwalta bai kamata a canza shi ba a hankali yayin amfani da al'ada. Kwalta daban-daban suna amfani da nau'ikan emulsifier daban-daban, wanda kuma ke da alaƙa da yanayin zafi. Gabaɗaya magana, ƙananan ƙirar kwalta, mafi girman zafin jiki. Wata yiwuwar ita ce matsalar emulsifier. Matsaloli tare da ingancin emulsifier kuma za su haifar da na'urar kwalta da aka yi aiki da su. Dangane da ingancin ruwa, ƙimar pH na iya buƙatar daidaitawa; ko dai emulsifier ya ragu ko kuma kayan aikin ba su kai daidai ba.