Puas yog aluminium foil ua rau peb noj qab haus huv?
Aluminium ntawv ci nws tus kheej tsis muaj teeb meem rau peb kev noj qab haus huv. Txawm li cas los xij, raws li kev ceev faj, cov khoom lag luam acidic lossis cov khoom noj uas muaj ntsev ntau yuav tsum tsis txhob muab khaws cia lossis ci hauv cov ntawv ci txhuas. Cov kua qaub los yog ntsev - xws li cov txiv apples, gherkins, feta cheese los yog hnyuv ntxwm - tuaj yeem tso cov txhuas ions los ntawm cov ntawv ci, uas tuaj yeem hloov (migrate) rau hauv cov zaub mov. Qhov no yog ib qho piv txwv uas cov neeg tsim khoom qhia meej meej rau ntawm lub ntim. Lub hom phiaj yog los xyuas kom meej tias qhov txwv kev tsiv teb tsaws ntawm tsib milligrams ib kilogram ntawm cov zaub mov tau teev tseg los ntawm European Council raws li kev ceev faj tsis pub dhau.
Aluminium ntawv ci: tag nrho-rounder hauv tsev
Aluminium ntawv ci yog qhov tseem ceeb hauv peb chav ua noj: cov khoom ntim zoo tiv thaiv lub teeb, oxygen, noo noo thiab kab mob. Aluminium ntawv ci yog lub npe hu ua "tsis muaj teeb meem" piv rau lwm cov khoom ntim xws li cling film lossis ci ntawv. Vim nws cov khoom, aluminium ntawv ci tuaj yeem txuas lub txee lub neej ntawm cov zaub mov, yog li ua kom muaj txiaj ntsig zoo kom tsis txhob muaj cov khoom noj pov tseg. Lub thickness ntawm aluminium ntawv ci ntawm no tsuas yog 0.006 hli, nyob rau hauv lwm yam lus, txawm thinner tshaj ib tug tib neeg cov plaub hau. Khoom noj khoom haus khib nyiab yog ib qho teeb meem loj ntawm peb lub sijhawm: 50% ntawm cov khoom noj khib nyiab hauv lub teb chaws Yelemees xyoo 2017 tuaj yeem zam tau, raws li kev tshawb fawb los ntawm lub teb chaws Yelemees lub koom haum tshawb fawb kev lag luam Gesellschaft für Konsumforschung (GfK) thiab Tsoom Fwv Teb Chaws Ministry of Food thiab Agriculture - inter alia, los ntawm kev ua kom pom kev zoo cia thiab kev tiv thaiv cov zaub mov tsim nyog.
