Lub tshuab nqus tsev vacuum yog siv los ua kom qhuav zaub, txiv hmab txiv ntoo, nqaij thiab nqaij qaib, cov khoom siv dej, cov khoom noj yooj yim, dej haus, condiments, khoom noj khoom haus, khoom noj khoom haus kev lag luam raw cov ntaub ntawv thiab lwm yam khoom.
Cov khoom lyophilized yog spongy, tsis shrinkage, zoo heev rehydration thiab me ntsis ya raws, thiab yuav khaws cia thiab thauj mus rau ib tug ntev lub sij hawm ntawm ib txwm kub tom qab sib thooj ntim.