Taug kev mus rau hauv lub tsev loj, thiab koj yuav pom cov txee ntim nrog lub tshuab nqus tsev- ntim cov nqaij tshiab, khoom noj txom ncauj, thiab cov txiv hmab txiv ntoo thiab zaub. Lub tshuab ntim khoom no, uas tau ntev los ua ke rau hauv peb lub neej niaj hnub, yog "tus neeg saib xyuas kev noj qab haus huv" ntawm kev lag luam khoom noj niaj hnub no - nws tshem tawm cov huab cua hauv lub ntim thiab kaw kom nruj kom tsim tau "qhov chaw airtight" uas cais cov pa oxygen, txiav tawm qhov tseem ceeb ntawm cov zaub mov tsis zoo ntawm qhov chaw.
Lub hauv paus ntsiab lus tseem ceeb ntawm lub tshuab nqus tsev ntim khoom yog nyob rau hauv qhov tseeb undermining lub ciaj sia taus lub hauv paus ntawm microorganisms. Feem ntau cov kab mob thiab cov pwm uas ua rau cov zaub mov lwj cia siab rau cov pa oxygen los tswj lawv txoj kev ua neej thiab kev loj hlob. Cov pa oxygen- ib puag ncig pub dawb tsim los ntawm lub tshuab nqus tsev tshem tawm "oxygen cushion" uas cov kab mob tsis zoo no nyob ntawm kev muaj sia nyob, yog li inhibiting lawv cov dej num ntau - qhov no feem ntau txuas cov txee lub neej ntawm zaub mov los ntawm 3 mus rau 5 zaug. Nyob rau tib lub sijhawm, cov pa oxygen-dawb ib puag ncig kuj tuaj yeem ua rau txo qis oxidation ntawm cov rog hauv cov zaub mov, ua kom tsis txhob muaj rancid saj los ntawm oxidation hauv nqaij, txiv ntseej, thiab lwm yam zaub mov, thiab khaws cia lawv cov khoom qub tshiab thiab tsw qab kom zoo tshaj plaws.
Tus nqi ntawm lub tshuab nqus tsev ntim tawm mus deb dhau ntawm kev lag luam zaub mov; nws kuj yog "tus kws tshaj lij kev tiv thaiv" hauv kev lag luam precision xws li kws tshuaj thiab khoom siv hluav taws xob. Lub tshuab nqus tsev ntim cov tshuaj tuaj yeem cais cov dej noo thiab cov kab mob hauv cov huab cua, tiv thaiv kev puas tsuaj thiab tsis ua haujlwm ntawm cov tshuaj, thiab ua kom cov tshuaj muaj kev nyab xeeb. Rau cov khoom siv hluav taws xob zoo xws li chips thiab sensors, lub tshuab nqus tsev ib puag ncig tuaj yeem cais cov pa oxygen thiab dej vapor, tiv thaiv oxidation, xeb, lossis luv Circuit Court, thiab ua kom ruaj khov. Nyob rau hauv cov ntsiab lus ntawm cov saw hlau txias, lub tshuab nqus tsev ntim tsim "ob qhov kev tiv thaiv" nrog qis-kub txias chains, txo qhov poob thaum lub sij hawm thauj mus los thiab ua kom cov khoom xyaw tshiab thiab cov khoom tshwj xeeb xa tawm tshiab nyob rau hauv qhov ntev thiab thoob plaws cheeb tsam.
Niaj hnub no, lub tshuab nqus tsev ntim tshuab kuj tseem hloov zuj zus mus. Lub tshuab nqus tsev gas ntim tau tshwm sim. Rau cov khoom noj txom ncauj uas tau yooj yim crushed, xws li crackers thiab qos yaj ywm chips, nws thawj zaug tshem tawm tag nrho cov huab cua nyob rau hauv lub ntim thiab ces sau nrog inert nitrogen gas. Qhov kev sib xyaw ua ke ntawm "nqus thiab roj filling" tsis yog tsuas yog kaw hauv qhov tshiab tsw xwb, tab sis kuj siv cov roj los muab cov cushioning los tiv thaiv lub crispness thiab tiv thaiv crushing. Txawm li cas los xij, lub tshuab nqus tsev ntim tsis yog "universal preservative charm." Yog tias cov khoom noj nws tus kheej nqa cov kab mob, lossis yog tias lub ntim puas los yog xau, qhov kev pheej hmoo ntawm kev lwj yuav nce ntxiv. Yog li ntawd, thaum yuav khoom, nco ntsoov xyuas seb lub ntim puas zoo li qub thiab xau-dawb, thiab tseem txheeb xyuas hnub tsim khoom thiab lub neej txee.
Los ntawm cov pob khoom me me mus rau cov kab ntau lawm, lub tshuab nqus tsev ntim, nrog nws cov txiaj ntsig zoo thiab kev lag luam, tau dhau los ua qhov tseem ceeb ntawm kev tsim khoom thiab kev siv, ntsiag to tiv thaiv qhov tshiab thiab kev nyab xeeb ntawm peb lub neej.