Carbon Steel vs Nonstick: You Are Wrong About Teflon
You Have Been Lied To
The chemical coating that makes a nonstick pan nonstick — polytetrafluoroethylene, or PTFE — belongs to a family of substances called PFAS. But here is the counterintuitive truth about your kitchenware: the cured PTFE on your pan is chemically inert. If you were to accidentally swallow a microscopic flake of scratched Teflon, it would likely pass right through your body without harming you.
As explained in the Veritasium video, The Biggest Chemical Coverup In History, the real danger isn't necessarily eating from the finished pan—it is the manufacturing process required to create it.
Producing these slick coatings relies heavily on toxic PFAS compounds that inevitably pollute our water and environment. When you buy a nonstick pan, you are funding a toxic manufacturing cycle for a short-term product that will lose its slickness in a few years, at which point you will throw it in a landfill and buy another one.
Carbon steel doesn't have a coating. There's nothing to break down. It lasts 50+ years and gets better the more you use it. That's the entire comparison.
What PFAS actually is
PFAS — per- and polyfluoroalkyl substances — are a class of about 15,000 chemicals nicknamed "forever chemicals" because they don't break down in the environment or in your body. They're used in nonstick coatings, waterproof clothing, fast-food wrappers, firefighting foam, and a few hundred other industrial applications.
The EPA has set legally enforceable drinking water limits for several PFAS compounds at 4 parts per trillion — one of the strictest limits ever set for any contaminant. PFAS are linked in peer-reviewed research to thyroid disease, immune dysfunction, developmental delays in children, and several cancers.
While the solid PTFE on your cookware is technically different from the water-soluble PFAS the EPA regulates, the factories that make these pans still treat our environment as a dumping ground for these forever chemicals.
What happens when you overheat a nonstick pan
PTFE starts to break down at around 500°F (260°C). A typical gas burner on medium-high gets a dry nonstick pan past that temperature in under 5 minutes. At that point the coating releases fumes that cause flu-like symptoms in humans ("polymer fume fever") and, famously, kill pet birds in the same room.
This isn't a rare edge case. Most home cooks have, at some point, walked away from a hot pan or accidentally preheated an empty one. Because the fumes are invisible and odorless, you don't even know it's happening.
The lifespan math
Industry guidance for nonstick: replace every 2-3 years. Even with perfect care — silicone utensils only, hand wash, low-medium heat — the coating wears.
Industry guidance for carbon steel: replace never. It's the same pan your great-grandmother used, if she had one. Carbon steel cookware in restaurant kitchens routinely lives 30-40 years in daily commercial use.
| Cost over 20 years | Nonstick | Carbon steel |
|---|---|---|
| Pans purchased | ~7-10 | 1 |
| Total cost (at $40 avg) | $280-$400 | $80-$150 (one time) |
| Coating to landfill | ~3 lbs | 0 |
"But carbon steel isn't nonstick"
It is. Just not on day one.
Carbon steel becomes nonstick through a process called seasoning — layers of polymerized oil bond to the metal surface, creating a smooth, slick patina. The more you cook, the better it gets. By month three of regular use, a properly seasoned carbon steel pan releases food as cleanly as any nonstick coating. By year three, it's better.
But there is a better way: Nitrogen Infusion.
Instead of shipping you raw steel and a weekend chore, the ELMNT 726 pan undergoes a specialized process called nitrogen infusion (also known as case-hardening). The steel is treated with nitrogen at extreme temperatures, which alters the molecular structure of the metal's surface.
This process does two massive things: it makes the pan incredibly tough—highly resistant to rust, scratching, and warping—and it creates a naturally smoother, slicker micro-surface.
Because our pans are nitrogen-infused and arrive fully pre-seasoned, you get to skip the awkward break-in phase entirely. It cooks like a well-loved, three-year-old professional pan right out of the box, and just like classic carbon steel, the nonstick patina still gets better the more you cook.
The flavor difference
This is the part nobody talks about. Nonstick pans don't develop fond — the brown bits of caramelized protein that stick to the bottom and turn into the foundation of every great pan sauce. The whole point of a nonstick coating is to prevent this.
Carbon steel browns food properly. You get crispy edges, deep maillard flavor, and pan-stuck residues that turn into sauces with a splash of stock and a scrape. Professional kitchens use carbon steel for everything from omelets to seared fish for this exact reason.
The objections you probably have
"Carbon steel rusts."
Raw carbon steel does only if you leave it wet. A 30-second dry on a hot burner after washing prevents this entirely. Nonstick pans, meanwhile, get destroyed if you put them in a hot oven.
Nitrogen infused carbon steel doesn't have this problem because the nitrogen prevents the oxygenation process from happening.
"Cast iron is the same thing and cheaper."
Cast iron is similar in that it's chemical-free and develops patina. But it's has a rougher surface and slower to heat up and cool down. For crêpes specifically, you want the responsiveness of carbon steel — the ability to flip quickly with a wrist motion, and to drop a few degrees between crêpes so the second one doesn't burn.
"I don't want to deal with seasoning."
Buy pre-seasoned. The 726 ships ready to cook.
The bottom line
If you're using nonstick because it's easy: there's an option that's easier, lasts longer, costs less over time, and doesn't risk the PFAS exposure that's still being researched. Carbon steel is what professional kitchens use. It's what they use in Paris. And it's what we make.
Replace your nonstick with a 12" carbon steel pan →
Sources
- EPA: PFAS National Primary Drinking Water Regulation (2024)
- CDC NIOSH: Polymer Fume Fever from Polytetrafluoroethylene
- National Toxicology Program: PFAS Immunotoxicity Report