Ingabe i-Teflon iphephile?

Ekhishini laseMelika, i-Teflon coated pan iyakhanya. Umlingo wabo okulula ukuwuhlanza?Nokho, kuvela izinkulumo ezinyenyezayo: 'Kuthiwani ngePFOA? Nokushisa okuphezulu?' Phakathi kokuheheka kwemikhiqizo ye-Teflon, kukhathaza ukubila. Ngezinganekwane zentuthu ye-polymer nemibuzo ngokuphepha, sizithola sisempambana-mgwaqo. Kukhanga insimbi engagqwali nensimbi, kodwa indaba kaTeflon icela ukutshelwa. Asicwilise phakathi.

Iyini i-Teflon?

I-Teflon igama lomkhiqizo, elaqanjwa yiNkampani yakwaChemours, yohlu lwemikhiqizo esekelwe ikakhulukazi ku-polytetrafluoroethylene (PTFE). Yaziwa kabanzi ngezindawo zayo ezinganamatheli futhi isiyigama lasekhaya elifana ne-cookware engagxili kanye nezinhlobonhlobo zezinye izinhlelo zokusebenza, ezifana nokuvala amakhebula, ama-seal, ngisho nezingubo zokugqoka.

Uke walikhipha lelopani elimnandi elithembisa ukudla kwasekuseni okunganamatheli? Lowo ngumlingo weTeflon. Njengoba izalwa ngenxa yesibopho esiphakathi kwekhabhoni ne-fluorine, imikhiqizo ye-Teflon yalwela umhlaba wama-nonstick coatings, ishintsha amakhishi ethu futhi yenza ukuhlanza kube nomoya oshisayo.

Kodwa nali itulo elisontekile: izinkulumo zokuhleba ze-'PFOA' noma 'i-perfluorooctanoic acid' zivame ukuntanta ezingxoxweni ze-Teflon. Ngokomlando okuxhunyaniswe nenqubo yokukhiqiza ye-Teflon, ukukhathazeka kwaqubuka lapho i-cookware ye-Teflon egcotshwa ihlangana nokushisa okuphezulu, okusikisela ukuthi kungenzeka kube khona intuthu ye-polymer. Ngokujabulisayo, ukuqanjwa kungenile. Namuhla, imikhiqizo eminingi ye-Teflon igqoka ibheji 'yokungabi ne-PFOA', iqinisekisa ukuthi kokubili amakhekhe akho nokuthula kwengqondo kusezandleni ezinhle.

Ngakho-ke, yini i-PFOA?PFOA, emfishane nge-perfluorooctanoic acid, iyinhlanganisela yokwenziwa eyake yasetshenziswa kakhulu ezitsheni ezingenzi-stick neminye imikhiqizo ehlukahlukene. Ukuphikelela emvelweni futhi kuxhumene nokukhathazeka okuningana kwezempilo, ukusetshenziswa kwayo kuye kwaqedwa kakhulu ngabakhiqizi eminyakeni yamuva ngenxa yokucatshangelwa kokuphepha.

Iyini i-PTFE Coated?

I-Polytetrafluoroethylene (PTFE) iyi-fluoropolymer yokwenziwa ye-tetrafluoroethylene. Kuyipulasitiki esebenza kahle kakhulu eyaziwa ngezindawo zayo ezingezona izinduku, ukumelana nokushisa okuphezulu, nokumelana namakhemikhali. I-PTFE coated ingasetshenziswa ezinhlobonhlobo zemikhiqizo, kusukela kumapani kuya ezingxenyeni zomshini, ukuze uzinikeze indawo ebushelelezi, engasasebenzi, futhi enganamatheli.

Uma ushibilikisa iqanda epanini lakho ngokunganaki, uhlangabezana nezimanga ze-PTFE, ezivame ukwaziwa nge-Teflon coated. Lesi simangaliso esingagxili, esizalwa ngekhabhoni ne-fluorine, senza izitsha zokupheka zibe yiphupho lokuziphatha futhi kulula ukuzihlanza.

Kodwa nansi i-tidbit: imikhiqizo ye-Teflon yasekuqaleni yake yahlangana ne-'PFOA', yadala isiphithiphithi lapho lezi zinto zihlangabezana nokushisa okuphezulu, zikhomba intuthu ye-polymer engaba khona. Ngokushesha phambili kuze kube namuhla, futhi imikhiqizo eminingi ye-Teflon iziqhayisa ngebheji 'ye-PFOA-free', iqinisekisa ukuthi ukupheka kwakho okungenamsebenzi akubeka engcupheni ukuphepha.

Ingabe i-PTFE Ayilungile Kuwe?

I-PTFE ehlanzekile ayisebenzi, emnyombweni wayo, i-PTFE, inhliziyo yemikhiqizo eminingi ye-Teflon, ihlala ingasasebenzi. Isibopho sayo se-carbon ne-fluorine siqinisekisa ukuthi ayisebenzi. Nokho, i-hitch ibonakala ngokushisa okuphezulu. Emazingeni okushisa aphakeme kakhulu (imvamisa engaphezu kuka-570°F noma u-300°C), kukhona amandla entuthu ye-polymer, ngezinye izikhathi ebangela 'i-polymer fume fever'.Lokho kusho, ngaphansi kwezimo ezivamile zokupheka, izitsha zokupheka ezihlanganiswe ne-PTFE azifinyeleli kulawa mazinga okushisa.

Ukwengeza umbimbi endabeni 'PFOA'. Yake yaba yingxenye yokulandisa kweTeflon, yaphakamisa amashiya ngenxa yokukhathazeka kwezempilo emazingeni okushisa aphezulu. Izindaba ezinhle? Imikhiqizo ye-Teflon yanamuhla iyaziqhenya inesitembu esithi 'PFOA-free'.

Kafushane, njenganoma yiliphi ithuluzi ekhishini, i-cookware ye-Teflon, uma isetshenziswe kahle, ihlanganisa kalula nokuphepha.

Ingabe i-Teflon Inobuthi?

I-PTFE, nenhlanganisela yayo eyingqayizivele ye-carbon ne-fluorine, igqama ngokungangeni kwayo kwamakhemikhali. Lokhu kusho ukuthi, ngaphansi kwezimo ezijwayelekile, kufana nebhodwe lensimbi engagqwali ongalisebenzisa ukwenza isobho noma i-cast iron skillet yeziteki zakho ezishisiwe. Ayihlangani, ivele ivumele ukudla kushelele.

Kodwa-ke, lapho ukulandisa kushintsha ekushiseni okuphezulu, izinto ziba muncu. Ukusunduza izitsha zokupheka ezingagxili emazingeni okushisa aphezulu, ngale kwebanga elinconyiwe, kungaholela ekukhishweni kwentuthu ye-polymer. Abanye abantu, lapho bedaluliwe, bangase babhekane nokungakhululeki kwesikhashana okwaziwa ngokuthi 'i-polymer fume fever'.

Bese kuba ne-subplot ye-'PFOA'. Nakuba kwake kwaxhunyaniswa nenqubo yokukhiqiza eminye imikhiqizo ye-Teflon, ukukhathazeka ngemiphumela yezempilo kwenza izimboni zashintsha. Namuhla, ukukhanya kukhanya ngokugqamile emikhiqizweni eminingi ye-Teflon egxivizwe nge-'PFOA-free', ubufakazi bokuziphendukela kwemvelo okuqhubekayo.

Ngakho-ke, nakuba i-teflon coated yenze amakhishi ethu abe izindawo zokucasha kalula, eza ne-mantra elula: hlonipha imikhawulo yawo. Iphathwa ngokucophelela, inganekwane ye-PTFE ingenye yezinsiza, hhayi ubuthi.

Ingabe i-Teflon iphephile?

I-PTFE, enhliziyweni yayo, iwukuhlangana kwekhabhoni nefluorine. Lesi sibopho samakhemikhali siyinikeza ukungabi nalutho kwemvelo, okuyenza ibe imbali yodonga. Njengebhodwe lakho lensimbi engenasici noma insimbi endala, ayihlangani; imane isiza.
Kodwa-ke, njenganoma yimuphi umculi omuhle, i-Teflon coated inezilungiselelo zayo ezithandwayo zesiteji. Ngena emazingeni okushisa aphezulu, akhuphuka ngaphezu kwendawo yawo yokunethezeka, futhi ungase uhlangane nentuthu ye-polymer. Nakuba kuphila isikhashana, ukuchayeka kungaholela 'kumkhuhlane we-polymer fume fever' ongavamile.

Indaba ye-'PFOA' yake yangena endabeni ye-PTFE, yavusa ukukhathazeka kwezempilo. Kodwa uguquko luwumongo wokuqanjwa kabusha. Imakethe yanamuhla ikhanya ngemikhiqizo ye-Teflon ibukisa ngokuziqhenya amabheji 'e-PFOA-free', ebonisa inqubo yokukhiqiza ephephile.

Ekwenzeni okuhle kobuciko bezokupheka, ngokunakekelwa okufanele, i-PTFE emigqonyeni engaqinile ihlala iyilungu labalingisi elithembekile. Ithembisa izihlanganisi ezilula ukuzihlanza nokusebenza kahle, ngaphandle kokubeka engcupheni ukukhanya kokuphepha.Uma isetshenziswa ngendlela efanele, imikhiqizo ehlanganiswe ne-PTFE iphephile. Kubalulekile ukuthi:
1.Ugweme Ukushisisa Ngokweqile:Ungalinge ushiye izitsha zakho zokupheka ezine-PTFE ekushiseni okuphezulu isikhathi eside.
2.Sebenzisa Izitsha Ezimnene: Gwema insimbi noma izinto ezicijile ezingaklwebha futhi zehlise isithunzi sokumboza.
3.Ukuthenga Kubakhiqizi Abahloniphekile:Qinisekisa ukuthi umkhiqizo awunaso isitifiketi se-PFOA futhi uthobela ukuphepha namazinga ekhwalithi.