Dab tsi yuav tsum tau them nyiaj mloog thaum siv daim txhuam cev ua npuas ncauj tshuab

Thaum siv cov sponge foaming tshuab, xyuam xim rau ntau yam: ua qhov kev npaj ua ntej ntau lawm, xws li qhov kub thiab txias ntawm raw cov ntaub ntawv, kev tu lub tshuab sponge; qhov ntsuas yuav tsum yog raws li qhov ua tau; lub ncuav ntawm cov kua sib tov yuav tsum ceev, lub teeb thiab khov kho, thiab nco ntsoov siv zog ntau dhau; Lub thawv yog muab tso rau hauv stably kom tsis txhob muaj cov khoom tsis sib xws; Thaum cov npuas dej nce, lub hau yuav tsum yog lub teeb kom ntseeg tau tias cov npuas dej nce ib txwm muaj thiab kab rov tav.