A pan is almost certainly PTFE-coated if it has a smooth, slightly slippery dark gray or black cooking surface, is light for its size, and is labeled 'non-stick' without 'PFAS-free' or 'sol-gel ceramic' certification. Stainless and cast iron are obvious by weight and appearance. Ceramic non-stick requires looking up the brand.
Pick up the pan. Here are five ways to tell what's in it, in order of confidence.
The brand label wore off. The box is gone. You're holding a pan and you need to know if it contains PTFE (the fluoropolymer coating linked to PFAS exposure). These five checks will tell you.
Look at the cooking surface. Each common coating has a distinct appearance.
PTFE coating: Smooth surface, dark gray to black, slight sheen. It feels almost wet to the touch when clean, even though it's dry. Run your finger across it – there's a characteristic slickness that nothing else matches.
Sol-gel ceramic: Also smooth, with a glassier, less slippery feel than PTFE. Often white, cream, light gray, or colored (Caraway's pastel exteriors and light interiors are a common example). Color alone is not proof, because some ceramic coatings are dark and some PTFE coatings are made to look like stone or ceramic.
Stainless steel: Shiny silver. Not coated. You can see brushed-finish striations under good light. Completely different visual from any non-stick coating.
Cast iron: Rough textured black surface. Heavy. You'll see seasoning patterns – uneven dark spots where oil has polymerized over time.
Hard-anodized aluminum: Dull gray-black. Uncoated hard-anodized surfaces are hard but not slick and look more like stone than coating. Be careful with this category: most hard-anodized pans sold today have a nonstick coating on top (Calphalon's Classic Hard-Anodized Nonstick line, for example, lists PTFE among its materials), so a dark anodized exterior tells you nothing about the cooking surface.
This gets you most of the way there. PTFE has a look. Once you've seen it, you recognize it.
Pick up the pan. Most PTFE-coated cookware is aluminum-based, which usually makes it light for its size.
PTFE-coated aluminum: Budget and thin-gauge nonstick skillets are typically the lightest pans in the kitchen.
Sol-gel ceramic on aluminum: Similar, and heavier-gauge ceramic pans overlap with stainless. Caraway lists its 10.5-inch ceramic fry pan at 2.7 pounds.
Stainless steel tri-ply: Somewhat heavier. All-Clad's D3 10-inch stainless fry pan weighs roughly 2.6 to 3 pounds without a lid, depending on the retailer listing.
Cast iron: Heavy. A 10.25-inch Lodge skillet weighs a little over 5 pounds. If you're asking "is this cast iron?" you already know the answer by the weight.
Weight reliably separates cast iron from everything else, but it does not separate PTFE from ceramic, and a heavy coated pan can still be PTFE (some tri-ply stainless and hard-anodized pans carry PTFE coatings). Use weight as a supporting clue alongside the other checks.
This one's quirky but useful. Drop a few drops of cold water on a clean, cool pan.
PTFE: Water beads up tightly. The droplets roll around like marbles. High surface tension – the water wants nothing to do with the coating.
Sol-gel ceramic: Water beads less perfectly. More spread. It evaporates slightly faster than on PTFE.
Stainless steel: Water spreads into flatter, wider drops that cling to the surface instead of rolling.
This isn't definitive by itself, but it's a fast triage. If water beads tightly on a dark non-stick pan, you're almost certainly looking at PTFE.
If the brand name is still legible, look it up. Most manufacturers publish material specs online.
Search the brand's website for 'material composition' or 'safety information.' Look for these exact words:
If the product page says 'non-stick' without naming the material, assume PTFE. Brands that sell PFAS-free coatings almost always say so explicitly. Caraway's fry pan page, for example, describes a ceramic coating made without PTFE, PFOA, PFAS, lead, or cadmium. Our Place says its products are made without PFAS, including PTFE. If a brand doesn't mention it, treat the pan as PTFE until you learn otherwise.
Generic Amazon-import brands (the ones with five-letter names or ALL CAPS BRAND NAME)? Assume PTFE unless the listing names a specific PFAS-free coating and the seller can back it up.
For premium brands, email or chat and ask: 'Is this product PTFE/PFAS-free, and can you share a third-party PFAS test certificate?'
Ask about the specific product line, not the brand. Large legacy brands sell both kinds of coating: T-fal markets its Initiatives line as PTFE-free ceramic while selling PTFE nonstick elsewhere in its range, and Cuisinart's GreenGourmet line uses a ceramic-based coating described as PTFE- and PFOA-free. Brands that publish third-party PFAS testing (Caraway's testing lab is Light Labs, for example) can usually point you to it.
If a brand can't or won't answer the question, treat that as a reason to assume PTFE.
If these checks don't yield a clear answer, assume it's PTFE.
The default of the cookware industry is fluoropolymer non-stick. Verifiable PFAS-free is the exception, not the rule. PTFE has been the standard nonstick chemistry for decades, and most nonstick pans that don't name their coating use it.
If you can't prove it's PFAS-free, treat it as PTFE:
Enameled cast iron (Le Creuset, Staub): Easy to identify by weight and the colored exterior. The coating is enamel (porcelain fused to iron), not PTFE. PFAS-free.
Uncoated hard-anodized aluminum: The surface is aluminum oxide, not PTFE. PFAS-free. But most hard-anodized pans on the market, including Calphalon's Classic nonstick line, have a PTFE coating on the cooking surface and look visually similar. Check the model number on the bottom of the pan and look it up.
Carbon steel (woks, Asian-style pans): Looks similar to cast iron but lighter. Seasoned with oil. PFAS-free.
Soapstone or stoneware bake pans: Natural stone. PFAS-free. Usually obvious by appearance and weight.
Here's how to decode cookware marketing:
'Non-stick' alone: Usually PTFE.
'PFOA-free': Meaningless for PFAS-free determination. PFOA was phased out of US fluoropolymer manufacturing by the end of 2015 under EPA's voluntary 2010/2015 PFOA Stewardship Program (not a ban), so PTFE-coated pans sold since then are routinely labeled PFOA-free. The PFAS category includes thousands of chemicals. PFOA is one.
'PTFE-free': Honest claim, usually accurate. Brands rarely lie about this because it's easily testable.
'PFAS-free' with no third-party data: Brand assertion only. Treat with skepticism unless the brand has a track record (Caraway, Xtrema, Our Place).
'PFAS-free' with a third-party lab report: Stronger evidence. Accredited labs such as SGS, Intertek, or Light Labs (Caraway's testing lab) can test a coating, but no test covers every PFAS: targeted methods measure a defined list of compounds, and total fluorine screening flags fluorinated material without naming it. Ask which method was used.
'Sol-gel ceramic': Silica-based coating. PFAS-free if properly manufactured.
'Ceramic non-stick': Could be sol-gel OR ceramic-reinforced PTFE. You have to check. Some brands use 'ceramic' to describe a ceramic-look PTFE coating with ceramic particles mixed in. It's still PTFE.
When in doubt, switch to a verified PFAS-free pan. The guessing game isn't worth the exposure.
And if you're concerned about PFAS beyond your cookware, check your drinking water by zip code – cookware isn't the only source. The EPA's UCMR5 dataset shows PFAS contamination in public water systems across all 50 states. Most people don't know their water contains it until they look.
How can I tell if my pan is Teflon? Look for a smooth, dark gray or black non-stick coating and a 'non-stick' label. If the pan isn't stainless steel, cast iron, or enameled cookware, and it has a slick cooking surface, it's likely PTFE-coated (Teflon is one brand of PTFE). Light weight is a supporting clue, though ceramic-coated aluminum pans weigh about the same. When in doubt, assume PTFE unless the brand explicitly states otherwise.
Does dark color mean PTFE? Often yes – most PTFE coatings are dark gray to black. But anodized aluminum and seasoned carbon steel are also dark and are PFAS-free. Check the weight and texture. PTFE feels slick and slightly 'wet' even when dry. Anodized aluminum has a harder, more stone-like texture. Carbon steel and cast iron have visible texture and are much heavier.
What if there's no label on my pan? Assume PTFE if you're uncertain. That's the cookware industry default. Brands that use PFAS-free coatings almost always label them prominently because it's a selling point. No label usually means PTFE.
Can I test cookware for PFAS at home? Not reliably. There is no consumer home test for PFAS in cookware. Confirming a coating requires laboratory analysis (targeted PFAS testing or total fluorine screening), and standard handheld XRF analyzers cannot detect fluorine; only specially configured instruments can, and only at high concentrations. The practical answer is to follow the five checks in this guide and assume PTFE if you're unsure. Then treat the pan accordingly or replace it with verified PFAS-free cookware.