Are Non-Stick Pans Toxic? What a Scratch Really Releases Into Your Food

Key Takeaways

• A single crack in a Teflon-coated pan can release thousands of plastic particles into food

• New 2026 research shows even unscratched pans shed particles during normal cooking, and older pans shed more than newer ones

• PFAS (per- and polyfluoroalkyl substances) exposure has been linked in lab studies to thyroid hormone disruption

• Maine's cookware PFAS ban took effect in January 2026; Minnesota's took effect a year earlier, in January 2025; the EU is finalizing a similar restriction

Are Non-Stick Pans Toxic?

Non-stick pans aren't automatically toxic to use. The risk comes specifically from damage: an intact, well-maintained pan used at normal cooking temperatures is considered low risk by current research, while a scratched, chipped, or cracked one is where the concern begins.

Age and visible wear matter more than the pan's original price or brand.

Do Non-Stick Pans Release Microplastics?

Yes. Most non-stick cookware is coated with polytetrafluoroethylene (PTFE), commonly sold under the brand name Teflon.

Researchers from Flinders University and the University of Newcastle used a technique called Raman imaging to scan cooking pots and found that everyday actions, like using a steel spatula or scouring pad, were enough to trigger particle release.¹

Their study showed that:

• A single surface crack released approximately 9,100 microplastic particles¹

• A broken coating released as many as 2.3 million particles¹

Another study estimated that regularly cooking with plastic or PTFE-coated cookware, new or old, could add roughly 2,400 to 4,960 microplastic particles into homecooked food every year.²

Is It Safe to Use a Scratched Non-Stick Pan?

It's best to stop using a pan once you see a scratch, chip, or crack, since damaged coating is the main reason for particle release.

Newer 2026 research adds an important nuance: even pans with no visible damage shed some particles during ordinary cooking.

Using a validated measurement method, researchers found that frying eggs released 3,890 to 6,760 PTFE particles into the food, while boiling noodles released 2,120 to 4,960, and older, more worn pans released more particles than newer ones regardless of visible cracking.³

Why Are Microplastics From Pans a Health Concern?

PTFE belongs to a family of chemicals called per- and polyfluoroalkyl substances, or PFAS, often nicknamed "forever chemicals" because they don't break down easily in the environment or the body.

Laboratory research using computer modeling found that certain PFAS molecules can bind to human thyroglobulin, the protein your thyroid gland uses to make thyroid hormone⁴

This binding was shown to change the shape of the region responsible for hormone production⁴

This is an early-stage, molecular-level finding rather than direct evidence of harm in humans, and more research is needed to understand what it means for people who use non-stick cookware

How to Know If A Non-Stick Pan Is Safe to Use?

A quick self-check covers most of what matters:

• Look for scratches, chips, peeling, or discoloration in the pan

• Avoid washing metal utensils with abrasive scrubbers, the most common causes of coating damage

• Avoid overheating an empty pan, since extreme heat can also degrade the coating over time

• Replace the pan if you see any exposed metal or flaking, rather than continuing to use it

What Is the Safest Cookware to Use?

A few materials avoid this specific concern entirely:

• Stainless steel, cast iron, and carbon steel have no plastic coating, so they don't shed microplastics the way damaged PTFE does

• Ceramic-coated pans are also PFAS-free, though the ceramic coating itself can wear down over time and should be inspected the same way

None of these materials guarantee zero risk, but they remove the specific issue covered here

Here's how the four common options compare:

Final Takeaway

The biggest risk in your kitchen isn't the pan itself, it's ignoring the signs it's giving you. Inspect your cookware regularly, avoid metal utensils, and replace non-stick pans the moment the coating is visibly damaged.

Frequently Asked Questions (FAQs)

REFERENCES

1. Yunlong Luo, Christopher T. Gibson, Clarence Chuah, Youhong Tang, Ravi Naidu, and Cheng Fang, "Raman Imaging for the Identification of Teflon Microplastics and Nanoplastics Released From Non-Stick Cookware," Science of the Total Environment 851, part 2 (December 10, 2022): 158293, https://doi.org/10.1016/j.scitotenv.2022.158293.

2. Matthew Cole, Alessio Gomiero, Adrián Jaén-Gil, Marte Haave, and Amy Lusher, "Microplastic and PTFE Contamination of Food From Cookware," Science of the Total Environment 929, (April 18, 2024): 172577, https://www.sciencedirect.com/science/article/pii/S0048969724027232

(Rh/AK/MSM)