What Is 'Teflon Flu' and Is Nonstick Cookware to Blame for a Uptick in Cases? (2025)

An uptick of cases of an illness related to the use of nonstick cookware known as "Teflon flu" have been reported of late, according to The Washington Post. More than 250 cases of Teflon flu, which is a reference to the trademarked chemical compound used to make the popular nonstick coating, were reported in the past year -- the most since 2000.

So what is Teflon flu and are nonstick pans safe to use? The answer is mostly yes, as long as your pans were made after a certain year and you use them properly.

What is Teflon flu?

Polymer fume fever, or Teflon flu, has reignited a debate about nonstick cookware safety. The illness occurs when fumes from an overheated Teflon or nonstick pan are inhaled. Nonstick pans are made with polytetrafluoroethylene (also known as PTFE). PTFE's are known as "forever chemicals" since they take decades or sometimes even hundreds of years to break down.

Under normal use, PTFE's aren't thought to cause a health risk, but when heated to above 500 degrees F there are increased emissions and the resulting polymer fume fever. Polymer fume fever causes a range of reported symptoms including fever, chills, muscle tension and headache. Symptoms of Teflon flu are temporary and generally start within 12 hours of exposure, but can take up to 24 hours to take hold.

How to avoid Teflon flu

Teflon and nonstick cookware is easy to use, clean and maintain but it should only be used for low to medium heat cooking. Never heat your nonstick cookware over high heat or medium heat for long periods of time. Try to keep the surface temperature 450 degrees F or emissions from the PTFE coating are likely increase.

Best Stainless-Steel Skillets for 2024 See at Cnet

What is Teflon, and does it cause cancer?

Nonstick or Teflon is a popular choice for home cooks. The big draw is that food won't stick to pots and pans coated with Teflon the way it does to other metal materials, so it's easy to flip a pancake or remove a cooked egg. Nonstick is also very easy to clean, generally taking no more than a few seconds to wash by hand.

Teflon is a brand name for a synthetic chemical called polytetrafluoroethylene that's used in many household products from wire coatings to fabric protectors and kitchen cookware, too. The knock on Teflon is that it's unsafe if consumed or absorbed into the body and can increase the chances of cancer and other diseases. While studies have shown some connections (more on that below), Teflon still exists and is used to make cookware, but the safety concerns around Teflon are mostly a thing of the past.

And I stress mostly. Here's why…

While the brand Teflon may be associated with a risk of cancer, it's actually a chemicalformerlyused in the making of Teflon calledPFOAthat's to blame. According to the Centers for Disease Control and Prevention, perfluorooctanoic acidis a manufactured perfluorochemical developed in the 1930s and used to make fluoropolymer coatings and products that resist heat, oil, stains, grease and water.

What Is 'Teflon Flu' and Is Nonstick Cookware to Blame for a Uptick in Cases? (3)

What are the negative effects of PFOA?

In some studies, PFOA has been linked to cancer, immune deficiency and a host of other medical problems. It has also been shown to affect growth and development and injure the liver in laboratory animals.

What Is 'Teflon Flu' and Is Nonstick Cookware to Blame for a Uptick in Cases? (4)

As recently as 2017, chemical giant Dupont settled a lawsuit for more than $670 million for its role in contaminating drinking water with PFOA (also referred to as C-8) in the mid-Ohio Valley. A previous class-action suit from 2004 in the same area led to astudythat found PFOA was linked to cancer and compromised immune function, even in small doses.

Teflon cookware made before 2013 may be toxic

All that was enough for most manufacturers to halt the production of nonstick coatings using PFOA around 2002. But Teflon using PFOA wasn't officially banned in the United States until 2014. Europe banned it in 2008. That means if you own Teflon nonstick cookware from 2013 or earlier, there's a chance it contains PFOA. Nine years is typically longer than the average lifespan of a nonstick pan, but if you're not sure, it's probably best to replace any Teflon-coated pots or pans.

If you're concerned, look for PFOA-free cookware

Because of the ban, all nonstick cookware made in the US should be PFOA-free, but you'd be wise to make sure. Be extra cautious about buying cheap or off-brand cookware, especially if it's not produced in a country with an active PFOA ban. PFOA is still produced elsewhere, largely in China, and used to make consumer products.

The good news is PFOA-freenonstick cookware is cheap, so there's no reason to risk it with anything that might contain the chemical. You can nab a 10-inch skillet from a trusted cookware brand like Misen for $33 or Tramontinafor around $25. Luxury cookware brand All-Clad makes a two-piece nonstick cookware set for $50.

What Is 'Teflon Flu' and Is Nonstick Cookware to Blame for a Uptick in Cases? (5)

The best natural nonstick cookware alternatives

If you're ready to ditch Teflon and chemical-based nonstick pots and pans altogether, there are plenty of more natural nonstick alternatives.

The most nonstick of the bunch is ceramic cookware, which has seen a boom in popularity since concerns about Teflon first surfaced. A few popular ceramic cookware options include The Always Pan (read my full review here), Caraway and Greenpan.

Cast iron is another cookware material that develops a natural nonstick coating over time, especially if you season it well and care for it properly. It won't likely ever become as nonstick as Teflon, but cast iron has loads of other culinary benefits that are worthy of a few extra seconds of scrubbing in the sink after use. Lodge is a tried-and-true cast-iron cookware producer: You can scoop up a 10-inch skillet for as little as $24.

What Is 'Teflon Flu' and Is Nonstick Cookware to Blame for a Uptick in Cases? (6)

Carbon steel is yet another option and functions similarly to cast-iron cookware, although it's not quite as heavy, slightly more sensitive to corrosion, and typically more expensive. Carbon steel hasn't really popped off here in the US but is a favorite of professional chefs, as well as yours truly. Cookware startup Made In produces an excellent blue carbon steel skillet for around $80, but there are cheaper options out there.

What Is 'Teflon Flu' and Is Nonstick Cookware to Blame for a Uptick in Cases? (2025)

FAQs

What Is 'Teflon Flu' and Is Nonstick Cookware to Blame for a Uptick in Cases? ›

Teflon flu, also known as polymer fume fever, results from inhaling fumes released when polytetrafluoroethylene (PTFE) cookware is overheated to 500-650°F. Symptoms include chest tightness, dry cough, fever, malaise, and shortness of breath, often mimicking a common cold.

What is the danger of Teflon coated pans? ›

Generally speaking, Teflon is a safe and stable compound. However, at temperatures above 500°F (260°C), Teflon coatings on nonstick cookware start to break down, releasing toxic chemicals into the air ( 18 ). Inhaling these fumes may lead to polymer fume fever, also known as the Teflon flu.

Is Teflon still being used on pots and pans? ›

The knock on Teflon is that it's unsafe if consumed or absorbed into the body and can increase the chances of cancer and other diseases. While studies have shown some connections (more on that below), Teflon still exists and is used to make cookware, but the safety concerns around Teflon are mostly a thing of the past.

Are non-stick pans safe now? ›

Yes, you can still use nonstick cookware. Here's what you need to know to eliminate the risk of Teflon flu. David lives in Brooklyn where he's spent more than a decade covering all things edible, including meal kit services, food subscriptions, kitchen tools and cooking tips.

Do all nonstick pans have Teflon? ›

Not all non-stick pans use Teflon; other non-stick coatings have become available. For example, a mixture of titanium and ceramic can be sandblasted onto the pan surface, and then fired at 2,000 °C (3,630 °F) to produce a non-stick ceramic coating.

What is the healthiest cookware? ›

“The most nontoxic cookware that you can buy is stainless steel, cast iron or carbon steel; things that don't have a coating on them,” says Alexis Pisciotta, culinary purchasing and events manager and cookware consultant for Food Network.

When to throw away non-stick pans? ›

We advise replacing your nonstick pans whenever the coating starts to degrade or is scratched—or about every three to five years.

Do air fryers have Teflon? ›

Many of the best air fryers use non-stick materials such as Teflon. You'll often see these labeled PTFE, PFOA, PFOS, and BPA. These are generally safe and actually really convenient for cleaning, but if you aren't using your air fryer properly, the non-stick coating can become scratched and damaged.

What year did they stop using Teflon? ›

Teflon cookware made before 2013 may be toxic

All that was enough for most manufacturers to halt the production of nonstick coatings using PFOA around 2002. But Teflon using PFOA wasn't officially banned in the United States until 2014. Europe banned it in 2008.

How do I know if my non-stick pan is toxic? ›

In general, you want to replace nonstick pans after five years. But you need to be particularly careful with nonstick cookware produced before 2015, as it may contain PFOA. If your cookware dates back to 2015 and earlier, it's likely time to replace it even if it doesn't contain PFOAs.

Should I get rid of old Teflon pans? ›

“Over time, non-stick coatings can degrade, releasing toxic chemicals into food when heated,” Peterson explains. “If these pans are past their prime or damaged, it's best to dispose of them properly to avoid any health risks.”

Is calphalon safe? ›

Our products are safe, and compliant with with all applicable federal and state safety regulations. We are proud to be able to offer our customers a variety of cookware materials to choose from, including stainless steel and nonstick ceramic.

Should we stop using non stick pans? ›

The Environmental Working Group urges cooks to avoid it as much as possible because per- or poly-flurochemicals (PFCs), a family of chemicals used to make surfaces nonstick (including cookware, clothing and carpets) has been linked to a variety of health problems (some forms of cancer, high cholesterol, obesity and ...

Does T-fal use Teflon? ›

Tefal was the first to use PTFE as the main component of its non-stick coatings. Public Health Authorities in Europe and in the United States have demonstrated that PTFE is an inert substance with no effect on health, even in the case of ingestion.

Why is Teflon still legal? ›

Why is Teflon Still on the Market? Teflon is still around thanks mostly to the PFOA Stewardship Program. Because PFOA is no longer a component of Teflon, Teflon proponents say the compound is no longer harmful, and that cooking it is perfectly safe for your health.

Is peeling off Teflon coating hazardous to health? ›

If, in a rare instance, a person accidentally ingests a flake of nonstick coating, the flake is non-toxic and would pass through the body without being absorbed. Based on the inert characteristics of the coating, data indicates that there are no health effects from the incidental ingestion of nonstick coating flakes.

Can you eat from a scratched Teflon pan? ›

While they don't necessarily present a safety concern, you still shouldn't hold onto your scratched nonstick pans. If the scratches are fresh, you may end up with flakes of the coating in your food—which we can all agree is not delicious. It can also impact how effective your pan's nonstick abilities are.

What are the harmful effects of Teflon coating? ›

What is Teflon coating? Teflon coating is a non-stick coating made of a synthetic fluoropolymer material known as polytetrafluoroethylene (PTFE). It is commonly used on cookware, electrical wires, industrial applications, and even cars and bikes.

Is it safe to use a scratched Tefal pan? ›

As the studies conducted by the International Agency for Research on Cancer (IARC): the human body does not assimilate the particles, which remain utterly harmless. However, scratches can cause a reduction in the non-stick qualities of the utensil: so it is best to replace the product concerned.

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