Prev NEXT 3Teflon Teflon nonstick cookware is easy to clean, but it could be carcinogenic. ©iStockphoto/Lisa McDonald Teflon nonstick cookware makes clean up in the kitchen much more enjoyable, but Teflon comes with a price. It is considered a likely carcinogen, and it does not biodegrade. Choose other products like stainless steel or ceramic pots.