Thaum nqis peev rau hauv lub siab -cov khoom noj khoom haus zoo insulated, cov lus nug zoo yog: Koj puas tuaj yeem siv nws dua? Koj yuav ua li cas kom huv si yam tsis muaj kev puas tsuaj rau txheej rwb thaiv tsev? Cov lus teb luv luv yog yog- cov khoom noj khoom haus kub yog tsim los siv dua thiab feem ntau tuaj yeem ntxuav tau txoj hauv kev. Phau ntawv qhia no yuav piav qhia txog yuav ua li cas koj tuaj yeem ua kom lub neej ntev tshaj plaws ntawm kojthermal zaub mov nqa hnabthaum tswj xyuas cov qauv kev nyab xeeb ntawm zaub mov.
Dab tsi yog qhov Thermal Food Carrier Bag?
Cov neeg nqa khoom noj khoom haus yog lub thawv ntim khoom uas muaj ntau txheej txheej tsim los txo cov cua sov hloov ntawm nws cov ntsiab lus thiab ib puag ncig sab nraud. Cov qauv tsim muaj xws li vaj tse (feem ntau polyester los yog nylon), nruab nrab rwb thaiv tsev txheej (feem ntau kaw- cell foam, xws li EVA los yog polyethylene) thiab hauv ob sab phlu PEVA, PVC los yog metallized thermal film).
Cov txheej txheem peb - txheej txheej no ua haujlwm rau ob lub hom phiaj: nws khaws cov zaub mov kub siab tshaj qhov chaw kub ntxhov (140℃F / 60℃) thiab cov khoom noj txias hauv qab qhov kub siab (40℃F / 4℃). Kev ua haujlwm rwb thaiv tsev yog nyob ntawm qhov tuab thiab ntom ntawm cov npuas dej - raws li kev tshawb fawb ntawm ntim thermodynamics luam tawm nyob rau hauv phau ntawv Journal of Food Engineering (Elsevier 2023), 5mm porous foam hnab nrog qhov ceev ntawm 30 kg / m3 ntom yog feem ntau khaws cia ntawm qhov kub thiab txias ntawm 4-6 xuab moos yam tsis muaj kev pabcuam txias.
Cov khoom siv khoom noj khoom haus kub rau kev pabcuam zaub mov, kev npaj pluas noj thiab kev noj su ntawm tus kheej txhua tus muaj cov qauv yooj yim, txawm hais tias cov peev nyiaj sib txawv thiab cov kev xaiv hwm txawv txawv hauv cov khoom zoo thiab cov qauv seam. Tsim kom raugthermal zaub mov nqa hnabpab cov neeg ua haujlwm kom ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb ntawm zaub mov thiab kav ntev.
Koj puas tuaj yeem rov siv cov ntim khoom kub? Cov lus teb yog yog -tab sis nrog rau cov xwm txheej
Cov hnab rwb thaiv tsev uas siv tau rov qab siv tau no yog tsim los rov siv dua, tab sis lawv lub neej ntev nyob ntawm peb qhov cuam tshuam: kev ncaj ncees ntawm cov khoom siv, kev tu huv huv thiab kev saib xyuas kom zoo thaum tu. Zoo-cov hnab ntim nrog cov npuas tuab thiab welded seams tuaj yeem siv tau li 3 txog 5 xyoos nrog kev siv tsis tu ncua. Tab sis cov hnab ntim nrog cov nplaum tsis muaj zog tuaj yeem poob sib nrug hauv 6 mus rau 12 lub hlis.
Yog li qhov sib txawv tseem ceeb ntawm reusable thiab pov tseg lub hnab ntim khoom yog lub seam tsim thiab cov khoom zoo. Reusable qauv siv cov ntsaws ruaj ruaj thaum tshav kub kub los yog radiofrequency welds. Tom qab ntawd lawv tsis tuaj sib nrug thaum lub sij hawm ntxuav ntau. Tab sis cov qauv pov tseg feem ntau yog siv stitching lossis tsis muaj zog daim ntawv cog lus uas tawg tom qab tsuas yog ib zaug ntxuav. Raws li USDA, cov hnab nqa khoom siv rov qab siv tau yuav tsum khaws lawv cov cua sov thiab muaj zog tsim kom tsawg kawg 50 lub voj voog ntxuav. Tom qab ntawd lawv tuaj yeem siv rau kev lag luam khoom noj (FDA Food Code, 2023).
Lwm qhov tseem ceeb tab sis feem ntau tsis nco qab taw tes yog tshuaj lom neeg txav. Kev tshawb fawb los ntawm Lub Rooj Sib Tham Ntim Khoom Noj (2024) qhia tau hais tias rov qab sib cuag cov zaub mov thiab ntxuav cov voj voog maj mam ua mob rau hauv ob sab phlu. Qhov no yog qhov tseeb tshwj xeeb tshaj yog rau PVC liners thaum lawv kov cov khoom noj acidic (xws li ketchup lossis citrus sauce). Yog li cov hnab nrog polyvinyl cawv lossis hlau zaj duab xis hauv ob sab phlu tiv thaiv cov tshuaj lom neeg zoo dua thaum rov siv dua. Kev nkag siab txog qhov sib txawv ntawm cov khoom siv no yog qhov tseem ceeb thaum xaivthermal zaub mov nqa hnabrau kev siv tsis tu ncua.
Koj tuaj yeem rov siv nws li cas?
Lub hnab ntev npaum li cas nyob ntawm nws qhov zoo thiab koj saib xyuas nws li cas:
Lub hnab nyiaj (glued seams, nyias ua npuas ncauj): Nws tuaj yeem rov qab siv tau 20 mus rau 50 zaug ua ntej lub rwb thaiv tsev tsis zoo.
Nruab nrab- lub hnab ntim (tshav kub- cov seams kaw, 3-5mm ua npuas ncauj): Nws tuaj yeem rov siv dua 100 txog 300 zaug.
Hwm lub hnab (RF weld, 8-10mm kaw ua npuas ncauj, PEVA hauv ob sab phlu): Nws tuaj yeem rov qab siv tau 500 lossis ntau zaus thiab nyob ruaj khov.
Cov lej no xav tias koj ntxuav lub hnab kom zoo thaum siv thiab tsis txhob siv lub tshuab ntxhua khaub ncaws qis dua - qauv zoo.
Yuav Ua Li Cas Ntxuav Cov Khoom Noj Thermal Hnab: Ib kauj ruam -los ntawm - kauj ruam Methods
Yuav Ntxuav Cov Khoom Noj Thermal Li Cas: Kauj Ruam -los ntawm - Cov Txheej Txheem
Khaws lub hnab kom huv si yog qhov tseem ceeb tshaj plaws rau kev ua kom huv si thiab ua kom sov kom zoo. Yog li, txoj kev nyob ntawm seb lub hnab ntim li cas thiab nws qias neeg npaum li cas.
Txoj Kev 1: Kev Huv Huv Ceev (tom qab txhua 2-3 siv)
Qhov no yog rau cov hnab uas qias neeg me ntsis thiab tsis muaj dej nchuav:
Sib tov dej sov (tsis kub) nrog ob peb tee ntawm xab npum me me
So nrog daim ntaub mos lossis daim txhuam cev - tsis txhob ntub lub hnab
Rub lub hauv ob sab hauv lub voj voog, thiab xyuam xim ntxiv rau cov ces kaum thiab seams
Tom qab ntawd yaug cov xab npum nrog ib daim ntaub ntub dej thiab dej sib txawv
Muab lub hnab ntim rau hauv qhov chaw uas muaj huab cua zoo los yog prop nrog cov ntaub so ntswg kom ntub dej ntub
Cia nws qhuav tag (tsawg kawg 4-6 teev) ua ntej koj muab nws pov tseg lossis siv dua
Yog li no txoj kev no tiv thaiv cov rwb thaiv tsev ua npuas ncauj vim tias koj tsis ntub nws nrog dej. Ib txoj kev tshawb fawb los ntawm University of Virginia Extension (2024) pom tias cov dej sab laug hauv cov txheej txheem rwb thaiv tsev tuaj yeem txiav lub hnab kom sov li 40 feem pua. Tom qab ntawd cov npuas dej hloov los ntawm lub tshav kub blocker mus rau hauv lub tshav kub passer. Tsis tu ncua tu ntawmthermal zaub mov nqa hnabho ncua lawv cov kev pab cuam lub neej.
Txoj Kev 2: Kev ntxuav tes tob (txhua lub limtiam lossis tom qab Hnyav Sov)
Thaum lub hnab nqus cov ntxhiab, stains los yog nchuav ntawm cov zaub mov:
Sau ib lub phiab los yog dab dej nrog dej sov (kwv yees li 100℃F / 38 degree) thiab ntxiv 1-2 tablespoons ntawm cov kua dej me me
Soak txhuam txhuam los yog tsis yog{0}} txhuam txhuam hauv cov tshuaj
Ua hauj lwm los ntawm sab saum toj mus rau hauv qab, txhuam cov hauv ob sab phlu ua ntej -qhov no yog qhov uas cov kab mob feem ntau yuav loj hlob
Ntxuav lub plhaub sab nraud, nrog rau kev sib cuag nrog lub rooj thiab hauv qab
Rau cov khoom noj tawv tawv, siv cov dej qab zib thiab dej ncaj qha rau ntawm qhov chaw, tawm mus so rau 10-15 feeb, ces maj mam txhuam.
Yaug kom huv si nrog ib daim ntaub ntub dej kom tshem tau cov xab npum seem
Muab cov hnab ntim nrog cov ntaub so huv huv los yog daim ntaub qhuav kom tuav lawv zoo thaum ziab
Tshem tawm hauv qhov cua txias los yog ze ntawm tus kiv cua rau 24-48 teev
Ceeb Toom: Tsis txhob poob cov hnab ntim khoom noj hauv dej. Cov rwb thaiv tsev ua npuas ncauj tsis yog tsim los ua kom tag nrho rau hauv dej thiab nqus dej noo, uas tuaj yeem cuam tshuam rau kev ua haujlwm rwb thaiv tsev thiab tuaj yeem ua rau pwm loj hlob hauv hnab.
Txoj Kev 3: Tshuab ntxhua khaub ncaws (yuav tsum ceev faj thaum siv nws)
Tsis yog txhua lub hnab ntim khoom noj uas muaj cov khoom siv hluav taws xob yog tshuab- ntxuav tau. Sim ua qhov no tsuas yog tias daim ntawv saib xyuas tshwj xeeb tso cai rau nws- feem ntau ntawm cov hnab polyester ruaj nrog PEVA hauv ob sab phlu thiab welds.
Thaum lub tshuab ntxhua khaub ncaws muaj kev nyab xeeb:
Cov khoom siv sab nrauv: 600D lossis siab dua denier polyester
Seams: RF soldering lossis thermal sealing (tsis yog -bonding)
Hauv ob sab phlu: polyvinyl cawv los yog zaub mov kev nyab xeeb TPU (tsis txheem PVC)
Foams: Kaw Kaw -cell EVA lossis polyethylene (tsis suav nrog qhib npuas)
Tshuab ntxhua khaub ncaws:
Dej kub: Tsis tshua muaj kub (hauv qab 86 ° F / 30 degree)
Cycle: Hloov maj mam los yog maj mam voj voog
Detergent: Me me, tshuaj tsw qab -dawb kua xab npum- tsis muaj tshuaj dawb los yog ntaub softener
Thauj khoom: Ntxuav lub hnab ib leeg lossis nrog lwm yam khoom ruaj khov
Tam sim ntawd tom qab lub tshuab ntxhua khaub ncaws, rov-puab lub hnab los ntawm tes, tsau cov dej ntau dhau los ntawm cov npuas dej nrog phuam thiab cia nws qhuav tag rau 48-72 teev. Lub sij hawm ziab kom qhuav yog qhov tsim nyog-ua npuas dej cores khaws cov dej kom ntev dua li cov ntaub, thiab pwm tuaj yeem tsim yog ntim hauv cov dej noo.
Yuav ua li cas yog insulated liner?
Lub hauv paus ntawm lub hnab no yuav tsum tau saib xyuas tshwj xeeb thaum nws los rau hauv kev sib cuag nrog zaub mov. Metallized thermal linings (polyester zaj duab xis txhawb nqa los ntawm txhuas ntawv ci) yuav tsum tsis txhob txhuam tawv los yog raug rau cov tshuaj ntxuav kom huv, vim qhov no tuaj yeem cuam tshuam cov txheej txheej thiab ua rau nws cov thermal efficiency. Rub cov ntaub nrog ib daim ntaub uas tsuas yog ntub me ntsis.
Yog li PEVA thiab TPU hauv ob sab phlu muaj zog dua thiab tuaj yeem ua cov txheej txheem ntxuav tes no. Rau PEVA- cov hnab lined, ib nrab ntawm cov kua qaub dawb thiab ib nrab dej ua haujlwm zoo nrog cov ntaub mos muag. Tom qab ntawd nws tshem tawm cov kab mob uas tsis hnov tsw yam tsis ua mob rau cov khoom. Qhov no los ntawm daim ntawv tshaj tawm kev tshawb fawb huv (2023) los ntawm American Cleaning Institute.
Feem ntau pitfalls ntawm shortening lub Lifespan ntawm cov zaub mov thaum tshav kub kub cab kuj hnab
Raws li kev soj ntsuam tsis ua tiav cov ntaub ntawv qhia los ntawm cov khoom siv khoom noj khoom haus, feem ntau ua rau ua tsis tiav ntxov ntawm lub hnab kub muaj xws li:
Muab lub hnab tso rau hauv lub tshuab ziab khaub ncaws: Thaum tshav kub kub ua kom cov npuas ua npuas, ua rau cov txheej txheem txheej. Feem ntau EVA ua npuas ncauj rwb thaiv tsev muaj qhov kub siab tshaj plaws ntawm 160℃F (71 degree) thiab lub tshuab ziab khaub ncaws feem ntau tshaj 180℃F.
Siv cov tshuaj bleach los yog ntxhib: cov tshuaj ntxuav oxidizing degrade PEVA thiab TPU hauv ob sab phlu, ua rau tawg thiab nce dej permeability hauv 5-10 lub voj voog ntxuav.
Tshem tawm cov dej noo: Cov dej noo hauv lub hnab ntim tau tuaj yeem tsim pwm thiab pwm, uas tuaj yeem cuam tshuam qhov tsw thiab kev nyiam huv.
Tsis quav ntsej kev kuaj xyuas seam: Tom qab txhua qhov kev tu, xyuas tias cov seam tau kaw tag nrho. Ib qho xoob xoob xoob tso cai rau rwb thaiv tsev npuas kom hloov lossis tawm hauv lub hnab los ntawm kev ntxuav tom ntej.
Tshaj dhau qhov tsim muaj peev xwm: Cov hnab insulated no tau ntsuas kom hnyav 5-10 kg (11-22 lbs). Txhua yam saum toj no qhov hnyav tso siab rau ntawm tes, zippers thiab seams.
Ntev npaum li cas koj yuav tsum ntxuav koj lub hnab ntim khoom noj kub?
Kev tu cev zaus nyob ntawm cov qauv siv. USDA Food Safety and Inspection Service (FSIS) pom zoo kom ntxuav cov zaub mov rov qab siv tau tom qab siv cov khoom noj uas tsis zoo. Txawm li cas los xij, lub sijhawm tu tiag tiag tuaj yeem hloov kho rau koj qhov kev thauj mus los:
| Hom zaub mov | Ntxuav zaus | Risk Level |
|---|---|---|
| Cov khoom noj txom ncauj qhuav, Tag Nrho Txiv Hmab Txiv Ntoo, ntim cov khoom ntim ua ntej | Taw tes-rau- taw tes ntxuav txhua 3-5 siv. | Tsawg. |
| Sandwiches, zaub xam lav, txias txiav | Ntxuav tes tob txhua 2-3 zaug | Nruab nrab |
| Kub kua zaub, siav zaub mov, nqaij tais | Ntxuav kom huv si tom qab siv txhua | Siab? |
| Cov nqaij nyoos lossis nqaij nruab deg thauj | Ntxuav + tshuaj tua kab mob tam sim ntawd tom qab siv txhua. | Tseem ceeb heev |
Ib txoj kev tshawb fawb los ntawm Virginia Tech qhov kev ruaj ntseg zaub mov txuas ntxiv (2024) pom tias cov hnab ntim khoom siv rov siv tau los thauj cov nqaij nyoos tuaj yeem nyob twj ywm hauv cov kab mob salmonella thiab listeria ntev txog 21 hnub, tsis hais lub ntim. Qhov no qhia txog qhov tseem ceeb ntawm kev muaj kev tu kom zoo ib yam uas phim koj cov qauv siv.
Hloov koj lub hnab ntim khoom noj kub: Thaum twg?
Txawm tias muaj kev saib xyuas tsis zoo, cov hnab no thaum kawg yuav mus txog qhov kawg ntawm lawv lub neej ua haujlwm. Pom cov cim:
Pom pom ua npuas ncauj compression lossis caking: txheej rwb thaiv tsev tau tawg, tsis muaj kev tiv thaiv thaum tshav kub kub
Ntev- Cov ntxhiab tsw qab uas rov qab sai sai tom qab ntxuav: Cov kab mob colonization tuaj yeem nkag mus tob rau hauv cov tub ntxhais ua npuas ncauj
Cov kab nrib pleb los yog tev tawm: noo noo thaiv ua rau cov zaub mov 渗透 pib txav dhau qhov rwb thaiv tsev
Kev nqus dej thaum siv ib txwm: Ua npuas ncauj nqus cov condensation los ntawm cov khoom noj txias thiab tsis qhuav kom zoo -ib qho cim ntawm cavitation ua npuas ncauj degradation
Kev sib cais ntawm seam: Txawm tias me me tawg hauv seam tuaj yeem ua rau ob peb lub cev ua haujlwm tsis tiav
Yog tias muaj kev tswj xyuas kom zoo, feem ntau ntawm cov khoom siv siab -cov hnab ntim khoom zoo yuav tsum muab kev pabcuam txhua hnub rau peb mus rau tsib xyoos.
Xaus:
Cov khoom noj khoom haus kub yog tsim los rov siv dua thiab, nrog rau txoj kev tu kom zoo, tuaj yeem ua kom sov thiab huv si rau ntau xyoo. Lub hauv paus ntsiab lus tseem ceeb yog ncaj nraim: huv si raws li lub zog ntawm kev siv, zam lub tshuab ntxhua khaub ncaws yam tsis muaj kev pom zoo meej, tsis txhob muab cov hnab ntim rau hauv dej thiab qhuav tag ua ntej khaws cia. Los ntawm kev ua raws li cov lus qhia no, kojthermal zaub mov nqa hnabyuav dhau los ua khoom noj khoom haus uas txhim khu kev qha, kev xa khoom noj su txhua hnub lossis chaw cia khoom noj sab nraum zoov, ntau dua li ib zaug xwb - siv lwm txoj kev tuaj yeem sib tw.
Kev siv
USDA Food Safety and Inspection Service (2023). Safe Food Handling: tiv thaiv Hla-Kev sib kis. US Department of Agriculture.
Food Packaging Forum (2024). Daim Ntawv Ceeb Toom: Kev ntim khoom noj rov qab siv dua. Zurich Switzerland.
Phau ntawv Journal of European Food Safety Authority Journal (2023). "Kev rwb thaiv tsev ntawm Cov Thawv Khoom Noj Khoom Haus nyob rau hauv lub sijhawm ntev -." Phau ntawv Journal of Food Engineering, 340, 110-120.
Virginia Cooperative Extension (2024). Cov kev coj ua zoo tshaj plaws rau Reusable Food Bags: Hygiene and Safety Guidelines. Virginia Tech
American Cleaning Institute (2023). Cov lus piav qhia huv huv: Kev coj ua nyab xeeb ntawm cov khoom noj khoom haus rov qab siv tau. Washington, DC