Pyrex · Bundt Pans
Vintage Pyrex 25 cm Patisserie Pastry Bundt Cake Pan Glass Baking Pan Jello Mold
Lower PFAS concern, plain glass bakeware with no nonstick or special coatings.
Vintage Pyrex glass baking pans are uncoated borosilicate glass, a material that does not inherently contain PFAS. Glass cookware poses minimal chemical-migration risk during typical baking use. No PFAS disclosure is expected because the product contains no Teflon-family coating, nonstick coating, or water/stain-resistant treatment.
Shop Pyrex on Amazon →Material
borosilicate glass, no coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cookware is a category where PFAS exposure is more common.
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
This pan is borosilicate glass, a high-silica formulation designed for thermal shock resistance and durability in baking. Unlike soda-lime glass, borosilicate has fewer contaminants and leaches negligible amounts of lead or cadmium even at typical baking temperatures (up to 500F). The lack of any nonstick coating, enamel, or glaze eliminates the primary chemical hazard vectors in cookware: no Teflon-type coating fume risk, no ceramic-glaze lead concern, and no coating degradation to worry about over decades.
The brand's record and disclosure
Pyrex (originally Corning, now owned by Instant Brands) has maintained borosilicate glass formulations since the 1915 product launch with strong historical safety margins. The brand makes no formal PFAS disclosures for bakeware, but borosilicate glass is inherently PFAS-free by material composition. Vintage Pyrex pieces (pre-1998) are especially valued by safety-conscious consumers because they predate most modern coatings and additives. No major recalls or safety controversies are documented for uncoated Pyrex glass bakeware.
How it compares in its category
Bundt pans typically come in steel (rust and coating risk), ceramic-coated cast iron (glaze hazard), or nonstick aluminum (Teflon-type coating/PFOA exposure). Plain borosilicate glass eliminates all coating-related risks and is chemically inert across normal use. This vintage Pyrex option outperforms coated alternatives in longevity and safety profile, though glass requires more careful handling to avoid breakage and heat conductivity is lower than metal pans.
If you buy it
Hand wash with gentle soap to avoid thermal shock; avoid sudden temperature swings (do not move directly from freezer to hot oven). The borosilicate can safely reach 500F. Inspect for chips or cracks before use, as compromised glass may break under stress. This pan will outlast nonstick alternatives by 20+ years with basic care; replacement is needed only if glass breaks, not from coating wear.
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.”
Glass breakage and thermal shock
Borosilicate glass is durable but can fracture if exposed to extreme temperature swings or dropped. Not a chemical hazard, but a physical safety concern specific to glass cookware.
Lead or cadmium leaching from glass matrix
Borosilicate glass formulations contain minimal lead or cadmium impurities. No documented cases of hazardous leaching from uncoated Pyrex at baking temperatures. Vintage recipes are especially low-contaminant by modern standards.
Teflon-type coating fume emissions
This product has no nonstick coating, so Teflon-type coating/PFOA fume risk does not apply. Plain borosilicate does not off-gas at any temperature.
Aluminum leaching
Product is pure borosilicate glass with no aluminum component. Aluminum leaching hazard is not relevant to this material.
Coating degradation and microparticle release
Absence of enamel, glaze, or nonstick coating means no coating to degrade or shed particles into food over time. This eliminates a primary aging hazard in cookware.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 92% 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 Bundt Pans
GreenPan
Premiere Ovenware Ceramic Nonstick 8" Square Cake Pan
ceramic nonstick coating
Lower-concern option; ceramic nonstick avoids traditional Teflon-type coating/PFAS, though independently verify if important.
⚠Risky category by default
Caraway
Ceramic Nonstick Fluted Cake Pan
Ceramic nonstick coating
Lower-concern ceramic nonstick option backed by brand transparency and third-party certification.
⚠Risky category by default
Caraway
Nonstick Ceramic Square Baking Pan in Sage at Nordstrom
ceramic nonstick coating
Lower-concern option; ceramic nonstick avoids Teflon-family coating, and brand transparency supports the claim.
⚠Risky category by default
More bundt pans 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.