Txawm hais tias lub tsom iav dej muaj xim zoo nkauj heev, nws tseem muaj" ntxiab" tom qab lawv cov tsos. Qee khob khob muaj cov khoom siv hlau hnyav, xws li txhuas. Thaum peb hliv cov dej-ua kom sov lossis dej haus nrog lub siab acidity lossis alkalinity, cov ntsiab lus no yuav yaj mus rau hauv cov dej haus. Tom qab cov menyuam yaus haus nws, cov ntsiab lus no yuav cuam tshuam lawv kev noj qab haus huv. Tab sis xaiv tus nqus plua plav steel hlau tsis muaj teeb meem zoo thiab tsis muaj kev phom sij!
