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Teflon can't stand the heat... Chemical Releases 1,202 CF4 (carbon tetrafluoride): Global warming gas; affects heart, lungs, and nervous system [1]. 1,112 CF3COF (trifluoroacetic acid fluoride): degrades to HF & TFA OFCB (octafluorocyclobutane): Linked to heart palpitations PFB (perfluorobutane): Global warming gas [1]. Common cooking temperatures 1,500 Broiling temperature for high-end ovens [7]. 1,000 Drip pans in stovetop burner Gas flame on range top [8]. 932 COF2 (carbonyl fluoride): fluorinated version of chemical warfare agent HF (hydrogen fluoride): Corrosive gas. Kills tissue on contact [2]. 887 PFIB (perfluoroisobutene): Chemical warfare agent [3]. 878 SiF4 (silica tetrafluoride): highly toxic by inhalation and ingestion [1]. 680 Toxic gasses released: TFE (tetrafluoroethylene): animal carcinogen HFP (hexafluoropropene): worker toxicant TFA (trifluoroacetic acid): poisonous to plants DFA (difluoroacetic acid): Animal kidney toxicant MFA (monofluoroacetic acid): lethal to humans at low doses PFOA (perfluorooctanoic acid): animal carcinogen [4]. 554 Ultrafine particulates released (oxidized Teflon particles) [5]. 464 Lowest temperature at which Teflon particles have been measured [6]. 800 Electric coil on range top [8]. 750 Surface temperature of PTFE-coated pan after heating for 8 minutes on conventional stove [9]. 700 Preheated grill [10]. 536 Birds killed in DuPont lab experiments [5]. 500 Searing temperature for meat in oven or grill Maximum temperature for many ovens 396 Temperature of PTFE-coated light bulbs under which Missouri birds died [11]. 350 Common baking temperature 325 Birds died from preheated oven [12]. All temperatures are in degrees Fahrenheit. References [1] Arito, H and Soda, R. 1977. Pyrolysis products of polytetrafluoroethylene and polyfluoroethylenepropylene with reference to inhalation toxicity. Ann Occup Hyg 20(3): 247-55. [2] Scheel, LD., Lane, WC and Coleman, WE. 1968. The toxicity of polytetrafluoroethylene pyrolysis products including carbonyl fluoride and a reaction product, silicon tetrafluoride. Am Ind Hyg Assoc J 29(1): 41-8. [3] Waritz, RS and Kwon, BK. 1968. The inhalation toxicity of pyrolysis products of polytetrafluoroethylene heated below 500 degrees centigrade. Am Ind Hyg Assoc J 29(1): 19-26. [4] Ellis, DA., Mabury, SA., Martin, JW and Muir, DC. 2001. Thermolysis of fluoropolymers as a potential source of halogenated organic acids in the environment. Nature 412(6844): 321-4. [5] Waritz, RS. 1975. An industrial approach to evaluation of pyrolysis and combustion hazards. Environ Health Perspect 11: 197-202. [6] Seidel, WC., Scherer, KV, Jr.., Cline, D, Jr.., Olson, AH., Bonesteel, JK., Church, DF., Nuggehalli, S and Pryor, WA. 1991. Chemical, physical, and toxicological characterization of fumes produced by heating tetrafluoroethene homopolymer and its copolymers with hexafluoropropene and perfluoro(propyl vinyl ether). Chem Res Toxicol 4(2): 229-36. [7] Viking. Professional Series VGSC. Available online at: http://www.vikingrange.com/cooking/vgsc36.html. [8] Smart Spaces. Safety Information. Available online at: http://www.smartspacesonline.com/safety_information.htm. [9] Wells, RE., Slocombe, RF and Trapp, AL. 1982. Acute toxicosis of budgerigars (Melopsittacus undulatus) caused by pyrolysis products from heated polytetrafluoroethylene: clinical study. Am J Vet Res 43(7): 1238-42. [10] Nottingham Internet Resources. 2002. Popular Gas Grills. Cooking on The Gas Grill. Available online at: http://www.barbecuen.com/gas-cook.htm. [11] Boucher, M., Ehmler, TJ and Bermudez, AJ. 2000. Polytetrafluoroethylene gas intoxication in broiler chickens. Avian Dis 44(2): 449-53. [12] Stewart, Robert. May 9, 2003 personal communication. Fahrenheit (F) to Celsius (C) conversion: 1,500 F (816 C) 700 F (371 C) 1,202 F (650 C) 680 F (360 C) 1,112 F (600 C) 662 F (350 C) 1,000 F (538 C) 536 F (280 C) 932 F (500 C) 500 F (260 C) 887 F (475 C) 464 F (240 C) 878 F (470 C) 396 F (202 C) 800 F (427 C) 350 F (177 C) 750 F (399 C) 325 F (162 C)