Pyrex · Roasting Pans
Pyrex Deep Rectangular Glass Baking Dish with Blue Lid
Lower PFAS concern, glass baking dish with no nonstick or coatings tied to fluorochemicals.
Pyrex's borosilicate glass baking dishes are made from inert glass, a material with minimal PFAS risk. The blue plastic lid may contain unknown additives, but the primary cooking surface poses negligible concern. No PFAS-specific claims or certifications are published; standard glass cookware carries lower risk than nonstick alternatives.
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Borosilicate glass with plastic lid
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.
No PFAS disclosure
No public statement about PFAS in this product.
Uncoated safe material
Bare, uncoated material (cast iron, stainless, carbon steel, or glass) with no surface treatment to contain PFAS.
The full breakdown
What it's made of and why it matters
The dish itself is borosilicate glass, a material engineered to resist thermal shock and chemical leaching even at high oven temperatures. Borosilicate does not leach lead, cadmium, or aluminum into food under normal use. The blue lid is plastic (material type not specified in available product information, but Pyrex lids are typically polypropylene or polyethylene). This separation of materials is important: the glass bowl poses minimal risk, while the plastic lid requires heat-conscious handling.
The brand's record and disclosure
Pyrex is owned by Instant Brands and has a long history in kitchenware dating to 1915. The brand does not make explicit public commitments on PFAS or other chemical disclosures, and product material specifications are not detailed on most retail listings. No major safety recalls specific to leaching or lid hazards for this product line are on public record. The brand's silence on chemical safety is typical for the cookware industry but leaves consumers without third-party transparency.
How it compares in its category
Glass baking dishes are among the safest options in the roasting pan category because glass is chemically inert and does not degrade into food. This product avoids the primary hazards of metal pans (aluminum leaching, reactive coatings) and ceramic-coated cookware (potential lead in glazes). The plastic lid is a minor distinction: many glass dish alternatives also include plastic lids, making this a category-standard trade-off rather than a Pyrex-specific weakness.
If you buy it
Do not heat the plastic lid in the oven; remove it before baking. Hand wash the lid rather than placing it in the dishwasher, as repeated high-temperature washing can degrade plastic over time. The glass dish itself is oven-safe to manufacturer specs (typically 425, 500°F depending on vintage) and can go in the dishwasher indefinitely. Replace the lid if it becomes warped, discolored, or develops odor, as these signs suggest chemical breakdown.
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.”
Plastic lid degradation and leaching
The blue plastic lid may contain BPA, BPS, or phthalates depending on resin composition. Long-term exposure to heat or acidic foods (tomato sauce, citrus) can accelerate leaching. Keeping the lid off during cooking and hand-washing mitigates this risk substantially.
Lead or cadmium in glass
Borosilicate glass formulations do not contain lead or cadmium as intentional ingredients, and Pyrex's borosilicate composition has been consistent since the brand's early history. No testing has documented leaching from modern Pyrex glass baking dishes.
Thermal shock and breakage hazard
Borosilicate glass is specifically designed to resist thermal shock. However, rapid temperature changes (e.g., from freezer to hot oven) or contact with cold surfaces while hot can still cause breakage. This is a physical safety issue, not a chemical hazard.
Microplastics from lid wear
Repeated washing, stacking, and contact with utensils can cause the plastic lid to shed microscopic particles over years of use. Risk is low for casual home cooking but increases with heavy or commercial use. Replacement every 3-5 years is a reasonable precaution.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 88% 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 Roasting Pans
Caraway
Ceramic Rectangle Pan
ceramic nonstick coating
Lower-concern nonstick option with PFAS-free claim and third-party certification; buy with reasonable confidence.
⚠Risky category by default
Caraway
16x13" Roasting Pan With Rack - Non-Stick Ceramic Coated Sage
Ceramic non-stick coating (Teflon-type coating-free, ceramic-based)
Lower PFAS concern, ceramic coating with verified PFAS-free claim and third-party certification.
⚠Risky category by default
Caraway
Home Small Rectangle Pan
Ceramic non-stick coating (Teflon-type coating and PFOA-free)
Lower-concern cookware choice; ceramic coating avoids traditional Teflon-family coating PFAS.
⚠Risky category by default
More roasting 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.