Teflon is a material discovered in the early 30′s by Roy J. Plunkett. His name is Polytetrafluoroethylene non-commercial. In the U.S. the only company selling this material is DuPont, a company where he worked all his life Roy J. Plunkett since finishing his doctorate in chemistry año1936. Since its discovery, Teflon has been applied in many aspects of daily life for their special properties, and the Teflon is inert, nontoxic, waterproof, electrical insulation, flexible, not altered by the action of light, nonstick and supports high and low temperatures (-270C – 300 C). Its areas of Ninja Blender are very different: aviation, spacecraft, medicine, electronics, etc..

However, there are scientific studies that say that the properties of Teflon is inert and nontoxic lost when the material temperature reaches about 260C, which shows about 15 toxic gases. This degradation can be lethal to birds and can cause some symptoms in humans.

In early 2005 the Environmental Protection Agency U.S. (EPA) said that according to studies by various scientists a component of Teflon (PFOA-perflourooctano acid-resistant insulating material such as heat used in cookware) is highly toxic and dangerous to health. We must clarify that the studies have been conducted on animals and not humans, but conclude that this substance has caused cancer in laboratory rats, has enhanced the elevation of cholesterol and triglycerides in the blood damages the liver and is also present in breast milk of rats.

Although the other hand the EPA also clarified that these experiments are not conclusive and perflourooctano acid is not present in Teflon products such as clothing, or utensils, but an element that is used in its manufacturing process. However, in the final product is a remnant of this product.

In January 2006, DuPont agreed to remove traces of PFOA remaining in the material and try to find a substitute material for the manufacturing process.