Ingabe i-Teflon iphephile?

Ekhishini laseMelika, i-Teflon coated pan iyakhanya. Umlingo wabo okulula ukuwuhlanza?Nokho, kuvela izinkulumo ezinyenyezayo: 'Kuthiwani nge-PFOA? Nokushisa okuphezulu?' Phakathi kokuyengwa 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 ngezinto zayo ezinganamatheli futhi isiyigama lasekhaya elifana ne-non-stick cookware kanye nenhlobonhlobo yezinye izinhlelo zokusebenza, njengokuvala amakhebula, ama-seal, ngisho nezingubo zokugqoka.

Uke walikhipha lelopani elimnandi elithembisa ibhulakufesi elingenanduku? 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 ohelezayo.

Kodwa nali itulo elisontekile: izinkulumo zokuhleba ze-'PFOA' noma 'i-perfluorooctanoic acid' zivame ukuntanta ezingxoxweni ze-Teflon. Ngokomlando okuxhunyaniswa 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 kuzinto zokupheka ezingafakwanga nezinti 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 yakuqala 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 ezijwayelekile zokupheka, izitsha zokupheka ezimbozwe yi-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, ngenkathi 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.