Iko PFOA inowanikwa munzvimbo dzisina kukwana here?
Kubika kwose kwose, kunyanya vapfubi vemafuta, vauya kuvimba pamapanki asingabhadharwi senzira yakanaka yokubika kana kubika zvokudya, kubva kumaomelets uye masukisi kuenda kuBundt zvingwa zvakagadzirwa zvakakwana, pasina kusara neine tsvina yakawanda yakashambadza shure.
Munyika yekucheka kwemafuta, kunyanya, mapepa asingabatsiri ndeavo, sezvo vachida zvishoma kana pasina mafuta ekubika. Asi kwete kwekutanga, mibvunzo yakasimudzirwa pamusoro pekuchengetedzwa kwe nonstick cookware, kunyanya nekuda kwezvinhu zvinokonzerwa nezvoutsika nezve perfluorooctanoic acid (PFOA) -iyo inozivikanwa seC-8-kemikisi inoshandiswa kusungira kuvhara kwekwenyika kunzvimbo.
PFOA (C-8) uye DuPont
Pakutanga kwa2006, Environmental Protection Agency (EPA) yakakumbira makambani masere eAmerica, kusanganisira DuPont, muiti weTeflon-brand nonstick cookware, kushanda pakugadzirisa PFOA-iyo iyo yakanyora kuti ingangodaro inokonzerwa nemakemikari-muna 2015.
PFOA yakaratidza kuti inokonzera kenza, kutakura kuberekwa kwepamusoro uye kuvharirwa kwezvirwere zvezvirwere zvezvirwere muzvikoro zverabhoresi zvinoratidzirwa kuhuwandu hwePPOA.
Zvidzidzo zvakaratidza kuti makemikari anowanikwa pane zvakaderera muropa mumvura ye 9 kubva kune gumi veAmerica, uye muropa revana vakawanda vanozvarwa. Uye kunyange zvazvo migumisiro ye PFOA pamitambo yakadzika yevanhu inopesana, zvinoratidzika kunge kune hukama pakati pePPOOA uye inokura mazinga echolesterol.
Zvimwe zvakanyanyisa, vamwe vanhu vakataura kuti PFOA kubudiswa kunokonzera kukanganisa kuberekwa mucheche akaberekwa vanaamai vari kushanda pachitima cheTeflon mumavambo ekuma1980.
Maitiro emakemikari anotapurirwa kuvanhu zvakananga uye, kusvikira ikozvino, hakuna humwe uchapupu hwekuti hazviiti zvekubika mapeji, kunyanya, ndeyekupomerwa mhosva.
Asi DuPont yave iri mumusoro-mutsvuku weEPA kwechinguva uye yakabhadharwa mari yakawanda nokuda kwekuvanza dhamari kwemakore mazhinji pamusoro pehuwandu hwePPOA, uyewo pakusvibisa mvura yeOhio River yekudiridza pedyo nechekuWest Virginia.
Kunzwa Heat
Dzokera kumapanki asina mbambo. Vose DuPont uye EPA vanoti vabiki havanyanyi kunetseka kana vakashandisa nonstick cookware zvakanaka.
Pane kukakavadzana kwakanyanya, pamusoro pemamwe kutsetwa-kupisa kudarika utsi hweutsi hwekubika mafuta kana kuti nzvimbo iyo zvokudya zvinopisa-kupfeka kusina kubhururuka kuchaputsa uye kusunungura utsi hunopisa. Chero chipi nechipi chinowanikwa pasi pekushisa kwakanyanya chichapa gasi dzine chepfu.
Maererano neDuPont, cookware neTeflon iyo yakashongedzwa nemapuranga ine yakakosha yekushandiswa kwekushisa kwema500 F uye kuti kuparara kukuru kwekuputika kuchaitika chete kana kutonhora kuchipfuura 660 F, iyo inogona kuitika nyore nyore kana mapeji asina kusiyiwa akasara kana asina chinhu pane burner.
Magazini yeCook's Illustrated (link inobhadhara chete) yakashuma pamayero emashiripiti emisasa mumagazini yaMay / June 2005 uye yakawana kuti kutonhora kwakanyanya kwakadai kunogona kusvika kusvika nekubika kubika kune zvakanyanya kupisa (zvakadai se-stir-fries).
Muzviitiko zvakawanda, kutengesa kwepamusoro kunyoresa kwechipiri kana maviri, kuwira nekuwandisa madigiri mazana maviri sezvo chikafu chakanga chichitenderera chakakomberedza pani.
Muna 2003, Environmental Working Group (EWG) yakashuma kuti kupfeka kusina kukwana "kunogona kusvika kumadigirii 700 F zvishoma pamaminitsi matatu kusvika ku5, zvichibvisa magasi gumi nemasikisi uye zvinokonzerwa nemakemikari maviri."
Kusunungurwa kwezvinokonzera tsvina kubva pamusana wekugadzira cookware inozivikanwa kuti inouraya shiri dzeshiri pamadziro ekudzikira-zvakaderera se 464 F, maererano neEWG.
Nonstick Cookware uye PFOA
Asi nepo PFOA inoshandiswa kusungira kuvhara kwekwenyuchi yekateti, DuPont inotaura kuti imwe ikemikari inoparadzwa mumhepo inotonhorera mukugadzira, uye isingave iri mune imwe yenyika yakasimbiswa.
Tsvaga zvikamu zve PFOA zvakawanikwa, zvisinei, mune imwe muedzo wakaipisisa apo nzvimbo yepani dzaiva pasi, asi mazuva ano mapeji akavharwa akaoma kupfuura kare kare uye anokwanisa kumira kushandiswa kwakanyatsochenjerera kudarika zvizvarwa zvekare zve nonstick cookware.
Gadzikana Nonstick
Pane nyaya mbiri apa:
- Pasinei nokuti PFOA inowanikwa mune zvisingabatsiri zvekubika
- Kubudiswa kwe PFOA mumamiriro ezvinhu
Sezvo kune cookware inofunganya, zvinoratidzika sechikonzero chekuti tisize pati dzedu dzisati dzatore uye mapani. Pasi pese kushandiswa, mapani acho anenge akachengeteka.
Nekuda kweDuPont, uye mamwe makambani emakemikari ', mutoro wezvakatipoteredza unofunga, zvinoratidzika kuti zvakakodzera kuti zviito zvichatorwa kuti zvive nechokwadi chokuti kusvibiswa kwePPOA kuchave kwese asi kubviswa mukati memakore gumi.
Kunyangwe kushandiswa kwePPOOA mune kupfeka kusina kukwana uye zvimwe zvigadzirwa zvichange zvichinyatsopera munguva yakajeka, kunyange zvazvo makambani anosanganisira DuPont anonzi ari kutsvaga dzimwe nzira dzakakodzera.
Kushandisa Nonstick Cookware Zvakachengeteka
- Usambofa uchitora pani dzisingabatsiri dzisina kutarisirwa pamurazvo wakazaruka kana imwe nzvimbo yekupisa.
- Paunenge uchibika, usarega kutsetseka kunopisa kupfuura 450 F.
- Usashandise midziyo yemidziyo pane nonstick cookware.
- Shamba nonstick cookware neruoko uchishandisa vashandisi vasingasviki uye sponges (musashandisa steel wool).
- Usaisa mhando dzekubika mapeji pamusoro pezvimwe.
- Chengetedza shiri dzinofamba dzichibuda mukicheni.