Pyrex · Silicone Cutting & Prep Boards
OXO Pastry Mat
Skip until OXO/Pyrex disclose coating composition
OXO silicone pastry mats lack PFAS disclosure and coating details. Silicone itself is lower concern, but the non-stick treatment remains unspecified by the brand.
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Material
Silicone mat with unspecified non-stick coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Non-stick, chemistry undisclosed
Marketed non-stick without stating the coating chemistry.
Category baseline
cookware is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
OXO's pastry mat is a silicone sheet with an applied non-stick surface treatment. The silicone base itself is food-safe and heat-stable, but the coating formulation is not publicly disclosed by OXO or Pyrex. Non-stick coatings on silicone mats may contain Teflon-family coating or other synthetic compounds designed to prevent sticking; without transparency, you cannot confirm whether PFAS-class chemicals are present. The lack of material specification data is the primary safety gap here.
The brand's record and disclosure
OXO (owned by Henckels, with Pyrex co-branding on some products) has not published detailed ingredient or coating composition statements for silicone bakeware. Neither OXO nor Pyrex has signed major transparency pledges (e.g., AFIRM, Safer Chemicals Pledge) specific to non-stick coatings. There are no established recalls or safety warnings on record for this product, but the absence of disclosure is itself a red flag for consumers seeking PFAS-free assurance. Pyrex's parent company (Groupe SEB) has faced scrutiny on cookware safety in past decades but not recently for silicone products.
How it compares in its category
Silicone pastry mats are lower-risk than Teflon-type coating-coated nonstick pans (which shed fumes at high heat), but higher-risk than uncoated parchment paper or bare ceramic if the silicone coating is unknown. Most major brands (Oxo, Silpat, Demarle) do not disclose their exact non-stick treatment, making direct comparison difficult. Parchment paper and reusable beeswax wraps avoid the coating risk entirely, though they have different temperature limits and durability profiles. If PFAS avoidance is a priority, bare silicone or certified PFAS-free alternatives would be preferable.
If you buy it
Use below 400°F to minimize risk of coating degradation or fume release. Hand wash with mild soap and avoid abrasive scouring pads, which can scratch the coating and accelerate breakdown. Replace if the surface becomes visibly worn, flaking, or discolored. Do not use under the broiler or at very high sustained heat. If you notice any odor during use, discontinue immediately and ventilate the kitchen.
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.”
Non-stick coating composition (undisclosed)
OXO has not published the specific chemistry of the mat's non-stick treatment. While silicone itself is inert, applied coatings may contain PFAS or other Teflon-family coating; without disclosure, risk cannot be ruled out. This is the primary reason to exercise caution.
Coating degradation and fume release
Silicone mat coatings can degrade with repeated high-heat use, mechanical wear, or exposure to oils and acidic foods. As coating breaks down, small particles or volatile compounds may migrate into food; risk is higher if mat is used above 400°F repeatedly.
Microplastic/particulate shedding
Worn or scratched silicone mat coatings may shed small particles during kneading or mixing, which could be ingested. This is primarily a mechanical wear issue, not chemical, but is more likely if mat is not handled gently or stored properly.
Allergen or irritant residue from manufacturing
No recalls or reports of contact dermatitis or allergic reactions to OXO silicone mats have been established. Thorough hand washing of the mat before first use is standard food-contact practice.
Leaching of silicone oligomers at high temperature
Some silicone products can release cyclic oligomers (short-chain siloxanes) when heated, particularly if the mat is held at sustained high temperatures. This is rare and usually occurs above 500°F, but extended broiler or high-heat use increases likelihood. Pyrex/OXO has not published migration data.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% 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 Silicone Cutting & Prep Boards
Cuisinart
13" Semi-Transparent Polymer Cutting Board
semi-transparent polymer (likely polyethylene or polypropylene)
Lower concern. Bare polymer cutting board unlikely to contain PFAS.
⚠Risky category by default
Cuisinart
Silicone Cutting Board Mat, Non Slip Kitchen Counter Protector, For Secure Preparation And Easy Cleanup , Size: 5.10 cm
Silicone mat, non-slip surface
Low PFAS risk; silicone mats typically PFAS-free unless coated.
⚠Risky category by default
Cuisinart
Silicone Cutting Board Mat Nonslip Kitchen Counter Protectors For Secure Preparation And, Size: 5.10
silicone, nonslip base
Lower concern. Silicone mats rarely use PFAS, but verify product details.
⚠Risky category by default
More silicone cutting & prep boards 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.