Yuav ua li cas tuav lub khob tshiab tshiab?

First: Soak a newly bought glass in cool salted water and cook it lightly to strengthen it so it doesn't break easily. In addition, before pouring hot water into the glass, put metal tableware, such as steel or aluminum spoons, into the cup, and then pour the hot water into the glass, so that the glass will not break easily.

Qhov thib ob: Txoj kev ntxuav tsom iav yog kom qhuav lawv txhua hnub. Thaum ntxuav lub khob, tsis yog tsuas yog ntxuav lub khob xwb, tab sis lub iav ntaub thaiv phab ntsa yog huv si. Yog tias nws tsis ntxuav ntau zaus, nws yuav daws tau cov kab mob ntau thiab cov av hauv nws. Txhuam, yog tias lub iav saum npoo muaj roj ntau dhau, tsis txhob siv cov tshuaj ntxuav tes, siv cov tshuaj txhuam hniav los ntawm cov txhuam hniav thiab txhuam cov ntaub so ntswg rov qab kom tshem tawm cov av tsis khawb iav.

Thib peb: Siv cov iav yuav tsum tau muab cia kom deb ntawm txhua lub sijhawm kom tsis txhob muaj pob thiab tawg.