Duralex, Is It Non-Toxic?
Lower concern. Glass cookware avoids PFAS risk entirely.
Duralex makes tempered borosilicate glass cookware with no coatings. Glass is not associated with PFAS and poses no chemical leaching risk.
The better-graded swap
Heritage Steel
Heritage Steel Eater 12" Fry Pan with Lid
100/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
tempered borosilicate glass
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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Is Duralex non-toxic? What it is made of
Duralex cookware is made from tempered borosilicate glass, a silicate-based material that lacks a surface coating. Borosilicate glass is engineered to withstand thermal shock and mechanical stress without degradation, and the tempered treatment increases its impact resistance. Because the material itself is inert and non-porous, there are no glazes, enamels, or ceramic coatings that can degrade or leach contaminants over time.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Thermal shock fracture
Although tempered borosilicate glass is engineered for thermal resistance, rapid temperature transitions or exposure to direct flame remain a mechanical failure risk, not a chemical one. This is a physical safety hazard rather than a toxicological concern.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Lead
Borosilicate glass cookware contains no surface glaze or enamel coating. The material is monolithic glass with no known added colorants or decorative finishes on Duralex cookware that would introduce heavy metal risk.
Source, ATSDR ↗Teflon-type coating fume inhalation (non-stick coating degradation)
Duralex products are glass with no applied non-stick coating; Teflon-type coating-based fume hazard does not apply to this product.
Aluminum leaching
Borosilicate glass cookware contains no aluminum body or core. Metal-based leaching hazards are absent from this material class.
Coating degradation over time
Glass is chemically inert and does not degrade, flake, or off-gas over normal use lifetime. No coating renewal or replacement is required for chemical safety reasons.
How is this PFAS grade calculated?
The brand's record and disclosure
Duralex is a French manufacturer with a decades-long history in glass cookware and has maintained a consistent product line with minimal documented safety recalls or complaints related to chemical leaching. The brand does not publicly disclose detailed material sourcing or chemical safety testing results, and takes a silent stance on PFAS, which is typical for glass manufacturers since the material class presents no inherent PFAS risk. No major controversies or certifications specific to this product line are on record.
How it compares in its category
Borosilicate glass cookware avoids the principal hazards that affect other cookware types, it eliminates lead or cadmium leaching from ceramic glazes, Teflon-type coating fume risk from non-stick coatings, and aluminum dissolution in acidic foods. Compared to unglazed stoneware or enameled cast iron, glass eliminates concerns about enamel chipping exposing underlying metal. The main trade-off is that glass is brittle and offers no non-stick properties, requiring more fat or oil during cooking.
If you buy it
Avoid rapid temperature swings (e.g., cold water on hot glass) to prevent thermal shock fracture. Do not use on direct flame stovetops; Duralex is designed for oven, stovetop with heat diffuser, or microwave use. Inspect regularly for chips or cracks, as damaged edges can become sharp and small glass fragments may shed during use. Hand-wash to avoid accidental thermal stress from dishwasher cycles; avoid scouring pads that can scratch the surface.
What is not known about PFAS in this product?
- Basis
- Model estimate, 92% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Duralex has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Duralex?
- Stainless steel clad construction, no nonstick coating
- The brand calls it PFAS-free, which we have not verified
- Clad separation or delamination over time
- stainless steel clad construction, no nonstick coating
- The brand calls it PFAS-free, which we have not verified
- Nickel leaching from stainless steel
3 hazards checked on this product, all on its full breakdown.
- Clad stainless steel, no coating
- The brand calls it PFAS-free, which we have not verified
- Metal ion release during cooking (iron, nickel, chromium)
More 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.