New Nonstick Technologies
For decades, fluoropolymer nonstick coatings have ruled the market, but within the last couple of years, a few new technologies have appeared on the scene. Most of these are based on two related technologies -- silicon ceramics and silicone. Cuisinart's Ceramica, for example, is a nonstick ceramic that was first used in its GreenGourmet line. The coating does not contain PTFE or PFOA.
Another ceramic nonstick coating is Thermolon. The coating is mostly composed of silicon and oxygen. It is applied as a single layer over the metal of the pan and then followed by a protective or decorative top coat [source: Phillips]. The manufacturer promotes the new technology as PTFE-free and more eco-friendly due to less energy usage during the production process [source: Phillips]. Thermolon has a number of different formulations of its coating for specific nonstick cookware needs. GreenPan brand cookware uses Thermolon technology for its nonstick surface [source: GreenPan].
Another technology is silicone-based. You've probably seen or used silicone bakeware -- a product called NP2 takes advantage of silicone's slipperiness to create a PTFE-free nonstick coating [source:AkzoNobel]. Tramontina's new Eco-friendly Cookware line uses the NP² nonstick technology. The company states that this cookware can be used to both sear and brown foods as well as used in the oven up to 350 degrees Fahrenheit (177 degrees Celsius) [source: Tramontina USA].
Thermolon technology arrived on the U.S. market in 2007, while Ceramica technology and NP² became available to consumers in 2008. Due to the relatively short time these new technologies have been on the market, little research has been done on their performance. However, it's clear that in the decades since the discovery of PTFE, technology continues to make food preparation an easier and faster process.
For more about nonstick cookware and other related topics, spend some time investigating the links below.
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More Great Links
- AkzoNobel. "AkzoNobel Develops 'Green' Non-Stick Coating for Cookware." July 2008.
- Blumenthal, Dale. "Is That Newfangled Cookware Safe?" FDA Consumer magazine. October 1990. (October 6, 2008) http://www.fda.gov/bbs/tpics/CONSUMER/CON00036.html
- Brown, Alton. "Alton Brown's Gear for Your Kitchen." Stewart, Tabori & Chang. 2003.
- Calphalon."Use and Care-Nonstick Cookware." (October 7, 2008) http://www.calphalon.com/calphalon/consumer/jhtml/nonstick.jhtml
- Chemical Market Reporter."CPSC Rejects Petition for Teflon Warning Labels." July 21-23, 2003.
- Cookware Manufacturers Association. "A Word about PFOA, APFO or C8." (October 7, 2008) http://www.cookware.org/tools_7.php
- Cookware Manufacturers Association. "Nonstick finishes and cookware and bakeware metal substrate." (October 7, 2008) http://www.cookware.org/tools_3.php
- Cory-Slechta, Deborah and Dr. M. Granger Morgan. "SAB Review of EPA's Draft Risk Assessment of Potential Human Health Effects Associated with PFOA and Its Salts." EPA Advisory Science Board. May 30, 2006. http://www.epa.gov/sab/pdf/sab_06_006.pdf
- Daniels, Mary. "Stove Fumes Killing Caged Birds, Overheating Coated Pans Can Bring Quick Death." Chicago Tribune. March 9, 1986.
- Dulken, Stephen Van. "Inventing the 20th Century: 100 Inventions that Shaped the World." New York University Press. 2000.
- DuPont Teflon ®. "Cookware Care." (October 7, 2008) http://www.teflon.com/NASApp/Teflon/TeflonPageServlet?pageId=/consumer/na/eng/housewares/cookware/cookware/nonStick/cookwareCare/cookware_care.html
- DuPont Teflon®. "DuPont Fluoropolymer Solutions: A Brief History of Fluoropolymers." (October 8, 2008) http://www2.dupont.com/Teflon_Plunkett/en_US/assets/downloads/k20165.pdf
- DuPont Teflon®. "History of Teflon ®." http://www.teflon.com/NASApp/Teflon/TeflonPageServlet?pageId=/consumer/na/eng/news/news_detail.teflon_history.html
- DuPont Teflon®. "Safety of Teflon® Non-Stick Coatings for Cookware: Key Questions About Teflon® Nonstick Coatings." (October 15, 2008) http://www.teflon.com/Teflon/teflonissafe/keyquestions.html
- GreenPan™ "GreenPan™ Really Makes a Difference." (October 19, 2008) http://www.green-pan.com/dev/ae/html/technology.html
- Funderburg, Anne Cooper. "Making Teflon Stick." Invention & Technology Magazine. Summer 2008. http://www.americanheritage.com/articles/magazine/it/2000/1/2000_1_10_print.shtml
- Harrison, Ian. "The Book of Inventions." National Geographic. 2004.
- Houlihan, Jane and Heather White. "Petition to the United States Consumer Product Safety Commission to Require Warning Labels on Cookware and Heated Appliances Bearing Non-Stick Coatings." Environmental Working Group. May 15, 2003. http://www.ewg.org/files/CPSCbirds.pdf
- National Inventors Hall of Fame Foundation. "Hall of Fame Overview." (October 19, 2008) http://www.invent.org/hall_of_fame/1_0_0_hall_of_fame.asp#
- National Inventors Hall of Fame Foundation. "Inventors by Induction Date: 1985." (October, 19, 2008) http://www.invent.org/hall_of_fame/1_1_4_listing_induction.asp?vInduction=1985
- Phillips, Dr. Christopher H. "Comparison of Thermolon™ with Traditional Non-Stick Coatings." October 2008 (October 14, 2008) http://www.thermolon.com/docs/thermolon_healthy_non-stick_coating.pdf
- Raiford, William. Personal interview, 302-774-0081. Conducted October 17, 2008.
- Rodgers, Mary. Q&A Email. Conducted October 17, 2008.
- SCANPAN. "SCANPAN debuts world's first PFOA-free process for non-stick cookware." (October 17, 2008) http://www.scanpan.dk/News_Press/Green%20Tek
- Tramontina USA. "New Tramontina Eco-friendly Cookware: Made in the USA with the Earth in Mind."
- Tramontina USA. "Use and Care: NP²™ Technology, PTFE-free Nonstick Coating."
- T-fal. "Non-Stick Cookware." T-Fal. (October 6, 2008) http://www.t-falusa.com/cookware/non-stick-cookware.htm
- T-Fal. "Questions and Answers: Non-stick Cookware." T-Fal. (October 8, 2008) http://www.t-falusa.com/tefal/services/faqs.asp?dept%5Fid=110&mscssid=PV2QNQA3ANVR9LFFU54W78ASL3SMDUXE
- Turner, Dan. Personal interview, 302-774-0081. Conducted October 17, 2008.
- United States Environmental Protection Agency. "Perfluorooctanoic Acid (PFOA) and Fluorinated Telomers." (October 7, 2008) http://www.epa.gov/oppt/pfoa/index.htm
- Watson, Aleta. "Testing "green" nonstick pans." San Jose Mercury News. August 13, 2008.
- Wolke, Robert L. "Sticky Business." The Washington Post. April 22, 1998.