Pyrex · Cookie Sheets
Pyrex 3-qt. Easy Grab Portable Bakeware Set
Lower PFAS concern, glass bakeware has no typical PFAS risk.
Pyrex's borosilicate glass bakeware contains no nonstick coating or Teflon-family coating treatment, eliminating the primary cookware vector for PFAS. Glass is an inert material with no known PFAS application in its manufacture. No brand PFAS claim is needed because the material class itself presents minimal concern.
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 set is borosilicate glass, a type of glass engineered to handle thermal shock (rapid temperature changes) without cracking. Borosilicate contains silica and boric oxide, which bond tightly and do not leach lead, cadmium, or other heavy metals under normal baking conditions. Unlike ceramic-coated or enameled cookware, there are no paint layers, glazes, or surface treatments that can degrade and release harmful substances into food.
The brand's record and disclosure
Pyrex is owned by Instant Brands and has manufactured borosilicate bakeware for decades with no major recalls or disclosed contamination issues related to material composition. The brand does not publicly market PFAS-free status, but borosilicate glass inherently contains no PFAS. Pyrex has faced historical recalls for thermal shock breakage (unrelated to chemical safety), but these reflect design or quality control rather than hazardous material content.
How it compares in its category
Glass bakeware is chemically safer than non-stick metal or ceramic-coated alternatives, which may shed Teflon-type coating particles or leach metal oxides. Compared to bare metal sheet pans, glass is inert and will not interact with acidic foods. The main trade-off is weight and thermal conductivity: glass heats more slowly and unevenly than metal, which may affect baking performance but poses no safety disadvantage.
If you buy it
Preheat oven to desired temperature before placing cold glass in it to minimize thermal shock risk. Do not expose hot glass to cold water or cold surfaces immediately after baking; allow gradual cooling. Inspect for chips or cracks before each use, as damaged glass can break unexpectedly during heating. Glass is dishwasher safe but hand washing extends life; avoid placing hot glass on wet countertops.
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 cracking
Borosilicate glass is engineered to resist thermal shock but can still crack if exposed to extreme or rapid temperature changes (e.g., preheated oven to cold water). This is a mechanical hazard, not chemical, but fragments pose cutting/choking risk.
Lead or cadmium in glass or coating
Borosilicate glass does not contain lead or cadmium as part of its composition, and Pyrex bakeware has no enamel, glaze, or ceramic coating that could harbor these metals. No recalls or reports of leaching have been documented for this product line.
Silica dust inhalation during breakage
If glass breaks, fine silica particles may become airborne. While a single baking accident poses negligible risk, repeated breakage or improper cleanup in a shared kitchen could expose residents to inhaled silica; this is a mechanical rather than chemical hazard.
Coating degradation or peeling
Pyrex borosilicate bakeware has no applied non-stick coating or enamel layer, so there is no risk of surface degradation, peeling, or particle release into food over time with normal use and care.
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.
More cookie sheets 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.