Pyrex · Roasting Pans
Pyrex Glide Large Rectangular Roaster 38x22cm Roasting Dish
Lower PFAS concern, plain borosilicate glass roaster with no coating or nonstick treatment.
Pyrex's Glide roasting dish is made of borosilicate glass without any nonstick coating, Teflon-family coating, or water-resistant treatment. Glass is not a PFAS application category and poses no inherent forever-chemical risk. No lab data or brand PFAS claims exist for this product, but the material itself is well-established as inert.
Shop Pyrex on Amazon →Material
borosilicate glass
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.
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
This Pyrex roaster is borosilicate glass, a silica-based material fused with boric oxide to create high heat tolerance and thermal shock resistance. Unlike ceramic-coated or enameled roasting pans, borosilicate glass has no glaze layer that can degrade, chip, or leach contaminants into food. The material is chemically inert across normal cooking temperatures (up to approximately 260°C), meaning no migration of lead, cadmium, or other metals occurs during roasting.
The brand's record and disclosure
Pyrex (owned by Groupe SEB) does not publish detailed safety disclosures or third-party certifications for individual cookware products. However, borosilicate glass cookware has been produced under this brand for decades with no established safety recalls or contamination incidents in regulatory records. The brand maintains a conservative stance on material claims rather than marketing safety explicitly, which is typical for plain glass products where chemical risk is inherently low.
How it compares in its category
Glass roasters are among the safest options in the roasting pan category because they eliminate risks present in metal and ceramic alternatives. Cast iron and stainless steel can leach iron or nickel respectively under acidic conditions; ceramic or enameled pans risk glaze failure and lead exposure if damaged. Borosilicate glass avoids these entirely, though it is heavier and more fragile than metal alternatives.
If you buy it
Handle with care to prevent breakage, which creates sharp edges and potential glass fragments in food. Avoid direct flame or stovetop use (this is a roasting dish for oven only); rapid temperature swings can cause thermal shock even in borosilicate glass. Hand wash when possible to extend the product life; dishwashers are safe but repeated cycling may eventually cloud the surface. Replace immediately if chipping or cracking occurs.
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.”
Thermal shock and breakage
Borosilicate glass tolerates high oven heat but can shatter if moved directly from hot oven to cold water or placed on a cold stovetop. This is a handling risk rather than a chemical hazard, but fragments pose cutting and ingestion risk.
Lead or cadmium in glaze or enamel coatings
This product is uncoated borosilicate glass with no ceramic glaze, enamel, or paint layer. No hazard from decorative coatings is present or applicable.
Coating degradation and migration
Plain borosilicate glass has no coating to degrade. The material itself does not chip, flake, or leach under normal roasting conditions; the silica-boric oxide matrix is stable at cooking temperatures.
Aluminum leaching
This product is glass, not aluminum. No aluminum exposure risk applies.
Teflon-type coating fume risk from nonstick surfaces
This is an uncoated glass roaster with no nonstick treatment, so Teflon-type coating (Teflon) and associated degradation hazards do not apply.
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 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.