Study finds scratched nonstick pans can shed thousands of plastic particles

A 2022 study published in Science of the Total Environment found that a single crack in a nonstick coating can release about 9,100 plastic particles, while a broken coating can shed up to 2.3 million. The findings add new detail to concerns about damaged cookware as a source of microplastics in food.

Why it matters: - Damaged nonstick cookware can become a direct source of microplastics and nanoplastics in food. - The study gives a particle count to a problem many kitchens already face: scratched, chipped or flaking pans. - Consumers trying to reduce microplastic exposure may need to pay closer attention to worn cookware surfaces.

What happened: - Researchers at Flinders University and the University of Newcastle published a 2022 study in Science of the Total Environment. - The team found that a single crack in a nonstick coating can release about 9,100 plastic particles. - A coating that has broken down can shed up to 2.3 million microplastic and nanoplastic particles. - The researchers used Raman imaging to measure particle release from Teflon-coated cookware.

The details: - Raman imaging was sensitive enough to count individual particles. - The study found that once the surface is damaged, the coating flakes directly into food. - The imaging measured release from a single hairline crack and from a coating that had visibly broken down. - The study says a crack can release thousands of particles, while a broken-down coating can release millions. - The authors' takeaway was that damaged nonstick coatings are a direct source of microplastics. - A visible scratch, chip or flake suggests the pan is already releasing particles, not just showing wear. - The study found the coating itself, not the act of cooking, determined whether particles ended up in food. - Removing a damaged coated pan from use, or cooking on an uncoated solid-metal surface, removes that source.

Between the lines: - The findings widen the conversation about microplastics in the food supply beyond packaging and water. - Cookware is one of several everyday exposure sources, but this study makes damaged nonstick pans easier to quantify. - A Taima Titanium spokesperson said the research helps define what each scratch can mean and argued that bare metal removes the risk of coating flakes entering food.

What's next: - The study may push more consumers to replace damaged nonstick pans sooner. - It could also increase interest in uncoated cookware alternatives such as solid metal or titanium surfaces. - More research is likely to keep mapping how common kitchen materials contribute to microplastic exposure.

The bottom line: - A scratched nonstick pan is not just worn. It can be shedding plastic into food.