Tiffany Haney
Non-stick pans are popular because they are easy to use, clean, and competitively priced. However, they have been linked to a range of health and environmental concerns due to the presence of per- and polyfluoroalkyl substances (PFAS). PFAS are a large family of synthetic chemicals that are used to make products non-stick and resistant to water, oil, stains, and fire. They are known as forever chemicals because they do not easily degrade in the environment or the human body. PFAS have been linked to abnormal thyroid and hormone function, reduced immune system response, and cancer. While some PFAS chemicals, such as PFOA, have been phased out of production, others remain in use, and their health effects are not yet fully understood. PFAS are also commonly found in household goods such as clothing, carpets, and food packaging. To avoid the potential risks associated with PFAS, consumers can opt for alternative materials such as ceramic, cast iron, carbon steel, and stainless steel.
| Characteristics | Values |
|---|---|
| PFAS coatings | Common in non-stick pans |
| PFAS chemicals | Do not degrade in the environment or the body |
| PTFE (polytetrafluoroethylene) | A PFAS used in non-stick coatings, also known as Teflon |
| PFOA | A PFAS chemical phased out in the US in 2014/2015; still found in blood samples |
| PFAS alternatives | Ceramic, cast iron, carbon steel, and stainless steel |
| PFAS risks | Linked to abnormal thyroid and hormone function, reduced immune system response, and cancer |
| PFAS toxicity | Increased at temperatures above 500 °F |
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What You'll Learn
PFAS are a large family of synthetic chemicals
PFAS (per- and polyfluoroalkyl substances) are a large group of synthetic chemicals with a strong carbon-fluorine bond. This bond makes them highly resistant to degradation in the environment or the human body, earning them the nickname "forever chemicals". PFAS are used in a wide range of household products, including nonstick cookware, clothing, carpets, and food packaging. They provide non-stick or resistant properties to these products, making them slippery and resistant to water, oil, stains, and even fire.
PFAS have become an emerging public health concern due to their potential toxicity and persistence in the environment. While some PFAS, such as PFOA and PFOS, have been phased out of use in the United States due to known health risks, other PFAS chemicals continue to be used, and their health effects are less well-known. The International Agency for Research on Cancer classifies PFOA as a possible carcinogen, and it has been linked to abnormal thyroid and hormone function, reduced immune system response, and cancer.
Nonstick cookware, in particular, has come under scrutiny for its use of PFAS. Conventional nonstick cookware is made with a PFAS called PTFE (polytetrafluoroethylene), commonly known as Teflon. PTFE itself is inert and, as far as we know, is not absorbed by the body. However, the manufacturing process of PTFE has raised concerns. In the past, PTFE was produced with the help of PFOA, and studies linked PFOA to health risks, leading to its phase-out in 2014.
While PTFE-based coatings are no longer produced with PFOA, other PFAS may be used in their manufacturing. Undisclosed PFAS coatings are common on nonstick cookware, and companies are not always transparent about the chemicals used in their products. This lack of disclosure makes it challenging for consumers to make informed choices. Additionally, PTFE-based pan coatings can release PFAS into the environment during their lifespan, especially during manufacturing, high-temperature cooking, and disposal or recycling.
To address these concerns, safer alternatives to nonstick cookware are available, such as ceramic, cast iron, carbon steel, and stainless steel pans. These materials can provide a non-stick surface without the potential health risks associated with PFAS. Proper seasoning and maintenance of uncoated pans can also create a non-stick effect, making them a viable option for those seeking PFAS-free cooking solutions.
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PFAS are found in many household goods
Per- and polyfluoroalkyl substances, or PFAS, are indeed found in many household goods beyond nonstick pans. PFAS are a large family of synthetic chemicals, each with different effects, but all characterised by a strong carbon-fluorine bond. This bond makes PFAS extremely durable, earning them the nickname "forever chemicals". They are commonly used to make products slippery or resistant to water, oil, stains, or fire.
PFAS are frequently used in the production of nonstick cookware, with PTFE (polytetrafluoroethylene), or Teflon, being the most well-known example. While PFOA, another PFAS chemical, has been phased out in the US due to its health risks, PTFE is still used and is produced without PFOA. However, PTFE itself is a PFAS, and while it is inert and not absorbed by the body, it can mix with food during use and release PFAS into the environment.
PFAS are also found in various other household items, including clothing, carpets, and food packaging. They can be used to create stain-resistant or waterproof coatings on these products. Additionally, PFAS have been detected in drinking water supplies due to pollution from manufacturing processes, which is a growing concern for public health.
To avoid PFAS in nonstick cookware, consumers can opt for ceramic, cast iron, carbon steel, or stainless steel alternatives. These materials provide good nonstick properties when properly seasoned and maintained, and they do not come with the same health and environmental concerns as PFAS-coated pans. However, it is important to note that even if a pan is marketed as "`PTFE-free`, it may still contain other PFAS chemicals." Labels such as "`PFOA-free`" do not necessarily indicate a PFAS-free product.
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PFAS don't easily degrade in the environment or body
Per- and polyfluoroalkyl substances (PFAS) are a large group of synthetic chemicals that have been used in consumer products since the 1950s. They are used in various everyday products, including nonstick cookware, clothing, carpets, food packaging, and firefighting foam. PFAS are characterised by a strong carbon-fluorine bond, which makes them persistent in the environment and the body. This is why they are commonly known as "forever chemicals".
PFAS do not easily degrade in the environment or the body due to their strong chemical structure. They are known to accumulate in the environment and have been linked to adverse human health impacts, earning their nickname as "forever chemicals". Surveys by the CDC show that most people in the United States have been exposed to some PFAS, with potential health effects including abnormal thyroid and hormone function, reduced immune system response, and cancer.
The persistence of PFAS in the body is a concern, as people may take in more of these chemicals than they excrete, leading to bioaccumulation. Certain PFAS chemicals can accumulate in the body over time, especially with exposure to concentrated sources over long periods. This can result in reproductive and developmental effects, increased cancer risk, and reduced immune system function.
While PFOA and PFOS, two of the more studied PFAS chemicals, have been phased out of use in the United States, they persist in the environment and are still found in blood samples. Additionally, other PFAS chemicals have replaced them, and their health effects are less well-known. It is important to note that while PTFE (Teflon) is itself a PFAS, it is considered inert and, as far as known, is not absorbed by the body. However, this may change as studies progress.
Although PFAS are challenging to destroy, scientists have recently discovered a new method that appears safer and more energy-efficient. This method involves breaking down PFAS molecules at high temperatures into harmless byproducts. While this is a promising development, the process is energy-intensive, and it is essential to consider the potential release of harmful chemicals during the degradation process.
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PFAS-free nonstick cookware is available
Per- and polyfluoroalkyl substances (PFAS) are a group of synthetic chemicals that are used in a variety of household goods, including nonstick cookware. Due to their strong chemical carbon-fluorine bond, PFAS are highly durable and do not easily degrade in the environment or the human body, leading to health concerns. While some PFAS chemicals, such as PFOA and PFOS, have been phased out in the United States, nonstick cookware may still contain other PFAS.
If you are concerned about the presence of PFAS in your nonstick cookware, there are PFAS-free alternatives available. Stainless steel, cast iron, and carbon steel pans are safe alternatives that can be used as non-stick when properly seasoned and maintained. These options may be more expensive and require extra care, but they are proven to be safe and effective.
Ceramic skillets are another PFAS-free option that is gaining popularity. While ceramic coatings may not be as slick as traditional nonstick coatings, they provide a healthy and environmentally friendly alternative. Brands like GreenPan have developed PFAS-free ceramic nonstick cookware that is easy to clean, durable, and performs well.
When choosing nonstick cookware, it is important to consider the potential health risks associated with PFAS. While the Food and Drug Administration (FDA) considers PFAS-containing cookware to be reasonably safe when used properly, some people may prefer to avoid these chemicals entirely. By opting for PFAS-free alternatives, you can have peace of mind and enjoy cooking without worry.
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PTFE is a PFAS and is found in Teflon
PTFE, or polytetrafluoroethylene, is a synthetic fluoropolymer of tetrafluoroethylene. It is commonly known by the brand name Teflon, which was originally invented by DuPont in 1938. PTFE is a chemical substance that has unique properties, such as excellent heat resistance, electrical insulation, and water repellency, making it ideal for non-stick coatings on cookware. PTFE belongs to the subgroup of PFAS called fluorinated polymers, which are characterised by a strong carbon-fluorine bond. This bond is hard to break, causing PFAS to accumulate in the environment and animal tissue.
The use of PTFE in Teflon has been a topic of debate due to its potential health and environmental concerns. While it is touted as a safe alternative to other PFAS chemicals, there is limited evidence to support this claim. PTFE is an unregulated chemical within the PFAS family, and its effects are not yet fully understood. As a result, some companies have started moving away from using PTFE in their products, including PTFE-coated frying pans.
PFAS released from PTFE have been found in urban wastewater treatment plants, leading to widespread pollution in both Europe and the United States. The persistence of PFAS in the environment has earned them the nickname "forever chemicals". Court cases have been settled in the United States, with companies forced to pay fines for contaminating surrounding communities and livestock.
To minimise PFAS exposure, consumers should be cautious of products claiming to be PFOA-free or PTFE-free, as they may still contain other types of PFAS. It is best to look for products that are specifically labelled as PFAS-free and have been tested by a third party. Consumers can also reduce their exposure by avoiding products with water-repellent and stain-repellent qualities, unless they are certified as PFAS-free.
In terms of non-stick cookware, alternatives to PTFE-coated pans include ceramic skillets, which are marketed as a "green" alternative. Cast iron and stainless steel pans are also safer options, as they can be non-stick when used correctly and have been proven to be safe over time.
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Frequently asked questions
PFAS stands for per- and polyfluoroalkyl substances, a large family of synthetic chemicals that are commonly used in many household goods, including nonstick cookware.
PFAS are present in most nonstick pans, but not all. While PFOA, a type of PFAS, was phased out in the US in 2014 or 2015, other PFAS chemicals are still in use.
PFAS have been linked to potential health risks, including abnormal thyroid and hormone function, reduced immune system response, and cancer. They are also known as "forever chemicals" as they do not degrade easily in the environment or the body.
Look for pans that are specifically labelled PFAS-free or PTFE-free. Ceramic, cast iron, carbon steel, and stainless steel pans are alternative options that do not contain PFAS.
Avoid using metal utensils that can scratch the nonstick coating, as this may make it easier for PFAS to migrate out. Do not heat the pan above 500 °F, as high temperatures can cause the coating to degrade and emit toxic fumes.
