Misen · Woks
Misen Carbon NonstickTM Skillet Nitrided Carbon Steel Professional Alternative to Teflon
Lower PFAS concern, nitrided carbon steel is a Teflon-type coating-free nonstick approach, though seasoning/maintenance matters.
Misen's nitrided carbon steel skillet explicitly avoids Teflon-type coating and Teflon-family coating nonstick coatings, a known PFAS vector. Nitriding is a heat-treatment process that hardens the steel surface without added chemical coatings.
Brand says: “Professional Alternative to Teflon”
Shop Misen on Amazon →Material
nitrided carbon steel (no Teflon-type coating or Teflon-family coating)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
cookware is a category where PFAS exposure is more common.
The full breakdown
What it's made of and why it matters
Misen's skillet is nitrided carbon steel, a process that hardens the steel surface by diffusing nitrogen into the top layer, creating a durable nonstick finish without added polymer coatings. This approach avoids Teflon-type coating (Teflon) and other Teflon-family coating, eliminating the risk of fume release at high temperatures that affects conventional nonstick cookware. Carbon steel itself is chemically inert and does not leach metals under normal cooking conditions, though acidic foods can interact with the iron matrix if seasoning is compromised.
The brand's record and disclosure
Misen does not publicly disclose third-party testing, safety certifications (such as NSF or GOTS equivalents for cookware), or detailed material sourcing. The brand markets the product as a Teflon-type coating alternative but provides no published PFAS statement or manufacturing transparency. No recalls, safety complaints, or regulatory actions on record for this specific product line as of available public sources.
How it compares in its category
Nitrided carbon steel occupies a middle ground: it avoids Teflon-type coating fume risk and polymer degradation, but requires more active maintenance (regular seasoning) than modern ceramic or Teflon-type coating-coated cookware. Unlike enameled cast iron, nitrided carbon steel is lighter and heats faster; unlike bare carbon steel, the nitriding process provides initial nonstick properties without seasoning, though seasoning improves performance. It is less forgiving with acidic foods than stainless steel or enameled options.
If you buy it
Hand-wash only and dry immediately to prevent rust and maintain seasoning; avoid prolonged contact with acidic foods (tomatoes, vinegar, citrus) which can strip the nitrided layer. Do not exceed medium-high heat on stovetops and avoid abrasive scouring pads or metal utensils that degrade the surface. Reseason periodically with a thin layer of oil baked at low oven temperature; replace if the nitrided layer visibly flakes or rusts heavily, as exposed steel will corrode and potentially leach iron.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Iron leaching from damaged or acid-exposed nitrided layer
If the nitrided surface is scratched, flaked, or exposed to prolonged contact with acidic foods, underlying carbon steel can leach iron. While iron itself is not toxic in normal dietary amounts, excessive intake may pose risk to sensitive populations; this is primarily a durability issue.
Coating degradation over time
Nitriding hardens the surface but does not create an impermeable barrier like Teflon-type coating; the nonstick properties degrade with use, especially under high heat or poor seasoning maintenance. Users must actively maintain the cookware or performance will decline, though no hazardous byproducts are known from degradation itself.
Manufacturing transparency and heavy metal content in alloys
Misen does not disclose alloying elements, manganese content, or heavy metal testing for the carbon steel substrate. Standard food-grade carbon steel contains negligible lead or cadmium, but independent verification is not publicly available for this brand.
Rust and corrosion if maintenance is neglected
Carbon steel rusts rapidly without proper seasoning and immediate drying. Rust itself is not acutely toxic, but heavy rust buildup can flake into food and indicates the nonstick layer is compromised, requiring replacement.
Teflon-type coating-free fume risk
Nitrided carbon steel does not release Teflon-family coating fumes at normal or even moderately high cooking temperatures. No established off-gassing hazard is known for this material class.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 85% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Woks
Le Creuset
Essential Non-Stick Ceramic Wok
ceramic non-stick coating (ceramic-type)
Lower concern; ceramic non-stick avoids legacy PFAS chemistry, though no independent lab verification provided.
⚠Risky category by default
GreenPan
Lima 12.5" Ceramic Non-Stick Open Wok with Helper Handle
Ceramic non-stick coating (proprietary blend, Teflon-type coating-free)
Lower concern; ceramic non-stick is a plausible PFAS-avoidant choice, but unverified coating composition.
⚠Risky category by default
GreenPan
Kyoto 12" Carbon Steel Wok
Carbon steel, no nonstick coating
Lower PFAS concern, bare carbon steel wok, no Teflon-family coating needed.
⚠Risky category by default
More woks grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.