Mutane suna buga alamu a kan gwangwanin shayi, ta yadda gwangwanin shayi ba kawai suna taka rawa wajen adana abinci ba, har ma suna da siffar ado, wanda zai iya jawo hankalin abokan ciniki. Gwangwanin gwangwani masu kyau dole ne su bi tsarin bugu mai rikitarwa don cimma sakamako. Marubucin shayin gwangwani na ƙarfe na tinplate yawanci yana buƙatar a lulluɓe shi da wani nau'in fenti akan saman na ciki na baƙin ƙarfe bisa ga halayen abin da ke cikin (shayi) don hana abin da ke ciki ya lalata bangon gwangwani da gurɓata abin da ke ciki. , wanda ke da amfani don adana dogon lokaci. Don shayi, don hana curling bayan aiwatarwa, ɓarna baƙin ƙarfe da tsatsa, Hakanan wajibi ne a yi amfani da fenti na ado don ƙara bayyanar. Don aiwatar da rufin ciki na gwangwani shayi, dole ne ba kawai ya sami juriya na lalata ba, mannewa mai kyau, sassauci, mara guba, mara wari, saduwa da tsabtace abinci da buƙatun aminci, amma kuma dole ne a sami rufin dumama da gyaran ciki a cikin gidan. -tsari kamar high-mita juriya waldi na gida high-zazzabi dumama, da kuma aikin high-zazzabi dafa abinci a 121 ° C bayan shayi gwangwani ba tare da dusashe da kuma asarar haske.