Thermolon · Ceramic Cookware
GreenPan GP3 Thermolon 9G Ceramic Nonstick Cookware Set
Lower-concern choice; ceramic coating avoids Teflon-type coating/Teflon-family coating, though no third-party PFAS testing published.
GreenPan's Thermolon is a ceramic-type ceramic coating explicitly marketed as PFAS-free and Teflon-type coating-free. The technology sidesteps traditional Teflon-family coating nonsticks by using inorganic ceramic bonded to the pan surface.
Brand says: “GreenPan cookware is PFAS-free and uses Thermolon, a ceramic nonstick coating derived from sand”
Shop Thermolon on Amazon →Material
Thermolon ceramic nonstick coating (ceramic-type)
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
Why this grade
Category baseline
cookware is a category where PFAS exposure is more common.
Brand-stated PFAS-free
The brand states the product is PFAS-free (self-declared).
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Thermolon is a ceramic-type ceramic nonstick coating manufactured by Groupe SEB (GreenPan's parent company). Unlike traditional Teflon-type coating (Teflon), it does not contain Teflon-family coating and thus sidesteps PFOA/PFAS concerns tied to conventional nonstick. The coating is inorganic (sand-derived silica base) and bonds to the cookware substrate without organic binders that might leach under heat stress. This material class has no established toxicity flags in peer-reviewed literature or regulatory recalls.
The brand's record and disclosure
GreenPan explicitly markets Thermolon as PFAS-free and has published this claim consistently since the product line's introduction. Groupe SEB has not faced regulatory action or documented recalls specific to Thermolon coating safety. The brand does not provide independent third-party laboratory testing data on their website, but absence of evidence is not evidence of harm here. GreenPan's transparency on PFAS avoidance is straightforward; no hidden reformulations or competitor criticism on record.
How it compares in its category
Ceramic nonstick cookware sits between traditional Teflon-type coating nonstick (lower cost, higher PFAS risk if degraded) and stainless steel or cast iron (no chemical coating concerns, steeper learning curve). Thermolon is competitively positioned in the ceramic segment and avoids the durability complaints that plague some cheaper ceramic alternatives (rapid wear-through). It does not match Teflon-type coating's nonstick performance at high heat, but that is a feature, not a flaw, since it discourages overheating.
If you buy it
Hand-wash only to extend coating life; dishwasher use accelerates wear. Do not exceed medium-high heat; the coating is optimized for everyday cooking, not searing or wok-style high-heat use. Inspect the cooking surface every 6-12 months for visible flaking or gray discoloration of the base metal underneath; replace if the coating is visibly compromised. Use wood or silicone utensils to minimize abrasion. Avoid cooking acidic foods (vinegar, citrus, tomato) in the pot for extended periods, as ceramic can thin over time with chemical wear, though this is slower than with traditional nonstick.
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.”
Coating degradation and base metal leaching
Thermolon ceramic coatings can thin or flake with extended use or improper care (dishwasher, metal utensils, high heat). If the base aluminum or steel is exposed, leaching of those metals becomes possible. No recalls or field complaints of significant leaching are on record, but this is a use-dependent risk tied to product lifespan, not an intrinsic manufacturing defect.
Aluminum substrate leaching
The Thermolon coating itself is inorganic and does not promote aluminum dissolution. Ceramic coatings are passive barriers. No regulatory warnings or recalls specific to aluminum leaching from GreenPan cookware have been issued. The barrier remains intact under normal use within recommended heat ranges.
Lead or cadmium in glaze or substrate
Thermolon is a ceramic-type ceramic, not a fired glaze. It does not use lead or cadmium flux agents. No lead or cadmium contamination has been reported or recalled in GreenPan cookware. Groupe SEB is subject to US FDA cookware standards, which prohibit these elements above trace thresholds.
Ceramic substrate cracking under thermal stress
Rapid temperature swings (hot cookware into cold water) can cause the substrate or coating to crack or delaminate. This is a mechanical failure mode common to all ceramic-coated cookware, not unique to Thermolon. Once cracked, the integrity of the nonstick barrier is lost and replacement is advised.
Nonstick compound fume inhalation at high temperature
Thermolon, being ceramic and not Teflon-family coating-based, does not emit Teflon-type coating fumes (which occur above 500F with Teflon). No fume-related incidents or warnings are on record for Thermolon. The coating is chemically stable at stovetop temperatures (up to 400F recommended use).
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Ceramic Cookware
Caraway
Nonstick Ceramic Cookware Set
ceramic nonstick coating (proprietary, PFAS-free)
Lower-concern option; ceramic coating + third-party certification reduce PFAS risk substantially.
⚠Risky category by default
More ceramic cookware 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.