Are Non-Stick Pans Safe? The Truth about Teflon and Better Alternatives

Rochana Acharya^a

^a B.P. Koirala Institute of Health Sciences, Dharan, Nepal

Figure 1.

Background

Non-stick pans are kitchen favorites because they make cooking and cleaning up easier. Whether you are flipping pancakes or frying eggs, these pans offer convenience. However, many people don’t realize that older non-stick cookware can release harmful chemicals over time, especially when overheated. These chemicals have been linked to serious health risks, including cancer. [1]

Why Are Older Non-Stick Pans a Concern?

Before 2014, most non-stick pans were coated with Teflon, a material containing chemicals like Perfluorooctanoic Acid (PFOA) and Perfluorooctanesulfonic Acid (PFOS). [2] Studies have linked PFOA to kidney and testicular cancer, hormone imbalances, and thyroid disorders. [3-4] PFOS may also pose cancer risks. These substances, often called "forever chemicals," do not break down easily in the body or the environment, meaning they can accumulate over time and pose long-term health concerns. [5]

What Happens When Teflon Overheats?

Teflon-coated cookware is considered safe under normal cooking temperatures. However, problems arise when these pans are exposed to extreme heat. While baking at 177°C or searing meat at 260°C is generally safe, grills and stovetops can quickly surpass these temperatures. If a Teflon pan is left on such high heat for too long, it can reach 399°C, causing the coating to break down and release toxic fumes. And inhaling these fumes can cause flu-like symptoms such as fever, chills, and coughing. At even higher temperatures, Teflon can emit dangerous gases like hydrogen fluoride, which can cause severe lung damage, though such incidents are rare. [6]

Damaged Coatings Add to the Risk

Over time, non-stick coatings can wear out, especially if scratched by metal utensils or scrubbed too hard. Damaged coatings may flake off into food, and these tiny particles can enter the body. They may accumulate in organs like the stomach or kidneys, raising concerns about long-term health effects. [6]

What Has Changed in Modern Cookware?

Due to growing health concerns, PFOA was largely phased out by 2013, and many newer non-stick pans are now labeled "PFOA-free." However, manufacturers have introduced replacement chemicals like GenX, which is believed to be less harmful. But, early studies suggest GenX may still carry health risks. Since research on these alternatives is limited, their long-term safety remains uncertain. [7]

Should You Replace Your Pan?

If you own a non-stick pan made before 2013, it's best to replace it. Also, discard any pan with scratches, peeling, or flaking coatings. If your pan no longer provides a smooth, non-stick surface and requires more oil for cooking, it's a good time for an upgrade. [6]

What are Safer Alternatives?

Be cautious of “PFOA-free” claims, as many products still contain other chemicals like PTFE and similar products from the same family.  Instead, consider safer alternatives such as: [8]

• Stainless Steel – Durable, easy to clean, and free of harmful coatings.
• Cast Iron – Naturally non-stick when seasoned properly and excellent for heat retention.
• Ceramic Cookware – Free from toxic chemicals and ideal for low to medium-heat cooking.

Conflict of Interest

No other conflicts of interest were declared.

Peer Reviewed By

Gauri Adhikari, MD

References

1. Begley TH, White K, Honigfort P, Twaroski ML, Neches R, Walker RA. Perfluorochemicals: potential sources of and migration from food packaging. Food Additives and Contaminants [Internet]. 2005 Oct 1;22(10):1023–31. Available from: https://doi.org/10.1080/02652030500183474
2. Shelia Hoar Zahm, Jens Peter Bonde, Chiu WA, Hoppin JA, Kanno J, Abdallah M, et al. Carcinogenicity of perfluorooctanoic acid and perfluorooctanesulfonic acid. The Lancet Oncology. 2024 Jan 1;25(1):16–7. Available from: https://pubmed.ncbi.nlm.nih.gov/38043561/
3. Bartell SM, Vieira VM. Critical review on PFOA, kidney cancer, and testicular cancer. Journal of the Air & Waste Management Association. 2021 May 24;71(6):663–79. Available from: https://doi.org/10.1080/10962247.2021.1909668
4. Steenland K, Fletcher T, Stein CR, Bartell SM, Darrow L, Lopez-Espinosa MJ, et al. Review: Evolution of evidence on PFOA and health following the assessments of the C8 Science Panel. Environment International. 2020 Dec;145:106125. Available from: https://doi.org/10.1016/j.envint.2020.106125
5. National Cancer Institute, Division of Cancer Epidemiology & Genetics. PFAS exposure and risk of cancer [Internet]. Bethesda (MD): National Cancer Institute; 2024 [cited 2024 Nov 26]. Available from:https://dceg.cancer.gov/research/what-we-study/pfas
6. Sajid M, Ilyas M. PTFE-coated non-stick cookware and toxicity concerns: a perspective. Environmental Science and Pollution Research. 2017 Sep 14;24(30):23436–40. Available from: https://link.springer.com/article/10.1007/s11356-017-0095-y
7. Ecology Center. What's cooking? PFAS and other chemical hazards in nonstick cooking pans [Internet]. Ann Arbor (MI): Ecology Center; 2023 [cited 2024 Mar 11]. Available from: https://www.ecocenter.org/our-work/healthy-stuff-lab/reports/whats-cooking
8. Consumer Reports. Best frying pans if you want to avoid PFAS chemicals [Internet]. Yonkers (NY): Consumer Reports; 2023 Apr 6 [cited 2025 Mar 14]. Available from:https://www.consumerreports.org/home-garden/cookware/best-frying-pans-if-you-want-to-avoidpfas-chemicals-a1006253549/