Ntim khoom noj:
(1) cov nyhuv ntawm kev khaws cia tus nqi: zaub mov los ntawm lub teeb, oxygen nyob rau hauv cov txheej txheem ntawm kev khaws cia, qhov kev ua ntawm enzyme, qhov kub yuav yog oxidation rog thiab Browning, vitamin thiab protein denaturation, pigment decomposition, noo noo nqus thiab microbial pollution thiab lwm yam teeb meem, yog li cov zaub mov ntim khoom noj tuaj yeem tswj plaub yam saum toj no ua ntej kom ntev lub txee lub neej ntawm cov zaub mov, kom khaws cov zaub mov muaj txiaj ntsig zoo. Qhov no kuj yog qhov yooj yim tshaj plaws thiab tseem ceeb tshaj plaws ntawm cov zaub mov ntim khoom noj.
(2) Kev khaws cia thiab kev thauj mus los yooj yim: Vim yog qhov sib txawv ntawm cov khoom siv raw, txhua yam khoom noj yooj yim raug nias thaum lub sijhawm thauj mus los, kev sib tsoo thiab lwm yam teebmeem ua rau cov khoom noj zoo poob qis. Yog li cov khoom noj sib txawv rau cov khoom noj hauv cov txheej txheem thauj mus los kom muab qee qhov kev tiv thaiv buffer, xws li kev tiv thaiv kev cuam tshuam ntawm cov kaus poom, yog tias zaub nrog lub thawv corrugated buffer kev ua tau zoo, thiab zoo li peb cov khoom ntim thermal shrinkage film, vim nws cov ntim me me, piv nrog lwm cov ntim txuag chaw ntau dua thiab siv dav.
(3) Txhawb kev muag khoom: Thaum peb pom ntau yam khoom noj hauv cov khw loj, peb tsis yog tsuas yog tsom mus rau qhov zoo ntawm cov khoom xwb, tab sis kuj tseem yuav ua rau cov neeg siv khoom nyiam qee yam. Peb nyiam yuav cov khoom noj uas ntim zoo nkauj dua li ntim tsis zoo. Piv txwv li, vim li cas cov kua txiv maj phaub txiv maj phaub thiaj li muaj txiaj ntsig zoo hauv kev sib tw ntawm cov khoom zoo sib xws, ntxiv rau nws cov khoom zoo, tab sis kuj tseem muaj ntau lub tswv yim ntawm kev ntim khoom (nws cov kua txiv maj phaub zoo li peb cov ntawv tshaj tawm me me uas tshaj tawm ntawm txoj kev, lub hom phiaj yog los qhia txog qhov tseem ceeb: kua txiv maj phaub ntuj ntshiab)
(4) txhawb kom muaj nqis ntawm cov khoom: Nws yog qhov tseeb tias cov khoom ntim khoom muaj nqis ntau dua, tib yam khoom noj, kev ntim khoom yuav muab nqi ntxiv rau cov khoom. Los ntawm lwm qhov kev xav, nyob rau xyoo tas los no, kuj tau muab cov ntim khoom ntau dhau, thiab hauv cov txheej txheem tsim khoom noj, them sai sai rau kev ntim khoom noj (lub ncuav mog qab zib hli thiab lwm yam khoom plig rau lub caij so), uas kuj tsim nyog peb xav txog qhov teeb meem.
