Teflon, this non-stick coating of our pots and pans, when it is degraded by wear, or by a scratch, releases acid perfluoro–octanoic, one of the historical components of Teflon which may have carcinogenic effects. Researchers warn. The explanations of Géraldine Zamansky, journalist at the Magazine de la Santé on France 5.
franceinfo: An Australian team calls for vigilance from all those who use it to use less fat in their cooking?
Geraldine Zamansky: Absolutely. This is the result of amazing research. These Australian academics first went to great lengths to try to reproduce in the laboratory the different types of wear of these kitchen utensils. Then, they measured the consequence: a greater or lesser diffusion of micro-elements from their non-stick coating, Teflon.
With astonishing figures: a scratch releases 9100 plastic particles. And they counted up to 2.3 million micro and nano plastics when a larger area is damaged. So, yes, I confirm that we all thought the same thing, it potentially goes, in our food. Our fried eggs with very little butter are immediately a little less enticing.
Because these micro and nanoplastics are known for their dangerousness?
Let’s say they’re on the suspect list. In 2020, one of the historical components of Teflon PFOA, perfluoro-octanoic acid was banned in particular because of a carcinogenic effect. But since then it has been replaced by cousins of sorts like the GenX. However, the European Chemicals Agency has considered it a substance of very high concern since 2019. It would also be carcinogenic, and in addition, toxic to the liver, kidneys or even the immune system.
But it takes time to provide strong enough evidence to ban it in turn. These dubious substitutions should therefore be avoided. Peter Simpson toxicologist at this agency, explained to me that 5 European countries are going to ask in January for the definitive exclusion of GenX and all its family, the PFAS, from any production process.
In the meantime, how do we do it: should we abandon non-stick pans and saucepans?
Indeed, too much wear can encourage abandonment – trying to find a recycling circuit. If they are in good condition, how to protect them? When cooking of course, using a wooden spoon instead. Because the same phenomenon of degradation can occur on spatulas covered with Teflon. You should also avoid letting them heat up “empty”.
And to clean them, do not use cold water right away, otherwise the thermal shock can damage the coating. No too aggressive sponges obviously, but also, sorry, no dishwasher. And, unfortunately, if you’re looking for an alternative on your next purchase, it’s not easy. The new so-called “ceramic” surfaces would also contain questionable components!
>>> More info
The study that highlights the carcinogenic risks of Teflon
Details on the ECHA (European Chemicals Agency) website