Vintage Mirro 13"x9"x2" Non-stick Bake Pan
Vintage cookware with unknown coating; PFAS risk unclear.
This vintage Mirro pan has an unnamed non-stick coating with no PFAS information from the brand. Older non-stick cookware frequently contained Teflon-type coating.
The safe swap
Caraway
Caraway Baking Sheet & Cooling Rack Non-Stick Non-Toxic
90/100 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
Aluminum with non-stick coating (unspecified type)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Non-stick, chemistry undisclosed
Advertised as non-stick but coating type is not explained.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
Category baseline
cookware is a category where PFAS exposure is more common.
Teflon-type coating fume risk (thermal degradation)
If the coating is Teflon-type coating-based (unconfirmed), heating above 350-400°F can release fumes. Vintage non-stick cookware often has lower thermal stability than modern formulations, and this pan's age increases the likelihood of coating fragility.
Aluminum leaching
If the non-stick coating is worn or has begun to flake, direct contact between acidic or alkaline foods and bare aluminum can result in small amounts of aluminum transfer, particularly during long cooking times.
Coating degradation over time
As a vintage item, the non-stick layer has already undergone decades of thermal cycling and storage. Progressive peeling or release of coating particles into food is a real concern with age-worn bakeware.
Microplastics
Degraded non-stick coatings can fragment into food. While not technically 'microplastics' in the modern sense, ingestion of coating flakes is a physical contamination risk specific to aged non-stick cookware.
Source: EPA ↗What’s reassuring
Lead
Mirro aluminum bakeware typically does not use enamel topcoats; the non-stick finish is a separate applied layer. No public record of lead or cadmium contamination in Mirro bakeware exists.
Source: ATSDR ↗The full breakdown
What it's made of and why it matters
This is aluminum sheet metal with a factory-applied non-stick coating of unspecified chemistry. Mirro did not consistently label coating types on vintage bakeware, making it impossible to confirm whether it contains Teflon-type coating (Teflon-based) or an alternative. The aluminum substrate itself is chemically stable for baking but can leach small amounts of metal if the non-stick layer degrades or if acidic foods contact bare aluminum. The coating's age and condition are critical unknowns in a vintage piece.
The brand's record and disclosure
Mirro (now owned by Groupe SEB) has maintained a largely silent public stance on PFAS in legacy products and does not appear to have published retrospective safety data for vintage cookware lines. Contemporary Mirro products marketed as PFAS-free exist, but this vintage pan predates modern labeling standards. No major recalls specific to Mirro non-stick bakeware toxicity are on public record, though the absence of recalls does not confirm safety, only that no widespread acute harm was formally documented.
How it compares in its category
Vintage aluminum non-stick bakeware (1990s, early 2000s era) sits at higher PFAS uncertainty than modern ceramic or silicone alternatives, which carry no PFAS chemistry. This pan is comparable in risk profile to other unlabeled vintage Teflon-coated cookware from that era. Modern stainless steel or cast iron baking sheets eliminate the non-stick chemical question entirely, though they require more maintenance and are heavier.
If you buy it
Inspect the non-stick surface closely for chips, peeling, or visible wear; discard immediately if coating is compromised. Use only at oven temperatures below 350°F to reduce any risk of thermal breakdown of the coating. Avoid storing acidic foods (tomato sauce, citrus) directly in the pan; transfer promptly after cooking. Hand wash gently with soft sponges; avoid metal utensils and dishwasher, which accelerate coating degradation. Consider this a supplementary pan with a limited remaining lifespan rather than a primary baking tool.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Mirro has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Bakeware
Caraway
Ceramic Baking Sheet
Coating degradation and metal substrate exposure
Limited concern
Aluminum substrate leaching (if aluminum core)
Limited concern
Thermal shock and coating fracturing
Limited concern
✓Verified PFAS-free by a third party
GreenPan
GreenLife Ceramic Nonstick Bakeware
Ceramic nonstick coating
Coating degradation and aluminum leaching
Limited concern
Microcracking and ceramic particle shedding
Limited concern
Lower risk, ceramic nonstick avoids Teflon-type coating and PFOA.
✓Verified PFAS-free by a third party
Staub
4-Piece Baking Dish Set
enameled cast iron
Enamel degradation and iron leaching
Limited concern
Thermal stress fracture of enamel
Moderate concern
Lower PFAS concern, enameled cast iron baking dishes without nonstick coating.
⚠Risky category by default
More bakeware 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.