Ua ntej, yuav los ntawm cov kev cai thiab sim xaiv cov khoom los ntawm cov npe nrov. Thaum yuav khoom, cov neeg siv khoom yuav tsum xyuam xim xyuas seb cov lus qhia, cov ntawv lo, thiab cov ntawv pov thawj khoom puas tiav, thiab tsis txhob yuav "peb tsis muaj khoom".
Qhov thib ob, xyuas seb cov khoom puas tau cim nrog nws cov khoom siv thiab cov khoom muaj pes tsawg leeg, xws li austenitic SUS304 stainless hlau, SUS316 stainless hlau, lossis "stainless hlau 06Cr19Ni10".
Thib peb, qhib lub tshuab nqus tsev vacuum thiab tsw nws. Yog tias nws yog cov khoom tsim nyog, vim tias cov khoom siv yog tag nrho cov khoom noj, feem ntau yuav tsis muaj ntxhiab tsw ntxhiab.
Plaub, kov lub qhov ncauj ntawm lub khob thiab lub liner nrog koj txhais tes. Lub liner ntawm lub khob thermos tsim nyog yog tus du, thaum lub khob tsis zoo ntawm cov thermos feem ntau xav tias ntxhib vim muaj teeb meem ntawm cov khoom.