Mastrad · Silicone Cutting & Prep Boards
Mastrad Silicone Baking Sheet (yellow)
Silicone baking sheet, lower PFAS concern than nonstick cookware.
Mastrad silicone baking sheets are made from silicone, an inherently PFAS-free material with no Teflon-family coating. No public PFAS disclosures available, but silicone itself carries lower concern than traditional nonstick.
The safe swap
Trudeau
Trudeau Glass Drying Mat
90/100 safety
Same rubric that flunked this product. The swap earned its A.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
food-grade silicone
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
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
This Mastrad sheet is food-grade silicone, a polymer that does not rely on fluorochemical coatings (unlike Teflon-type coating nonstick cookware). Silicone is chemically inert at typical baking temperatures (up to 200-230°C depending on formulation) and does not release monomers or volatile compounds under normal use. The yellow pigmentation is integral to the silicone matrix rather than an applied glaze, eliminating concerns around ceramic or enamel coating degradation.
The brand's record and disclosure
Mastrad is a French kitchenware brand with a long history in silicone baking products. The company does not publish detailed safety certifications or independent test reports on its website, and takes no public stance on PFAS avoidance. However, silicone baking sheets are not a regulatory focus for PFAS monitoring because the material class inherently avoids fluorochemical additives. No recalls or safety controversies specific to Mastrad silicone sheets have been documented in public databases.
How it compares in its category
Silicone baking sheets have largely replaced Teflon-type coating nonstick and metal sheets in consumer kitchens because they avoid fume emission risk and thermal coating breakdown. This product is broadly comparable to competitors (OXO, Artisan, Silpat) in material safety profile. Silicone mats are generally considered lower-hazard than aluminum cookware (which can leach) or ceramic-glazed pans (glaze degradation risk), though they offer no nonstick advantage over quality metal sheets treated with oil.
If you buy it
Use only for baking and oven temperatures; do not place directly on stovetops or near open flame, as extreme localized heat can degrade silicone. Hand wash or use mild dishwasher cycles; avoid abrasive scrubbing that can cause microabrasion (though this does not release hazardous particles with food-grade silicone). Replace if surface becomes visibly torn, sticky, or discolored over time, typically after 3-5 years of regular use. Store in a cool, dry place away from oils and solvents that can soften silicone.
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.”
Silicone polymer leaching
Food-grade silicone (typically polydimethylsiloxane, PDMS) has no documented migration of harmful monomers or oligomers into food at normal baking temperatures. Independent studies on silicone bakeware have not detected migration of concern.
Coating degradation and particle release
Silicone mats can develop surface cracks or tears with age and mechanical stress. While food-grade silicone itself is non-toxic if ingested, microparticles from degraded surfaces may contaminate food; replacement is advisable if visible damage occurs.
Pigment safety (yellow colorant)
Mastrad does not disclose the specific colorant used in the yellow formulation. Approved food-grade silicone pigments (iron oxides, titanium dioxide) are considered safe, but heavy metal contamination in low-quality pigments is a theoretical risk without third-party testing data for this specific product.
Thermal stability at extreme temperatures
While food-grade silicone is stable to 200-230°C, exposure to temperatures above this range or direct flame can cause polymer degradation and release of volatile compounds. Normal home oven use presents minimal risk.
Bacterial or mold growth in surface pores
Silicone's slightly porous texture can harbor microorganisms if not thoroughly dried after washing. This is a hygiene rather than chemical hazard; regular hot-water washing and air drying mitigates risk.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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
Trudeau
Glass Drying Mat
Glass
Glass drying mat has minimal PFAS risk; bare glass material is inherently safe.
⚠Risky category by default
KitchenAid
Classic Nonslip 2-Piece Cutting Board Set
plastic composite, no nonstick coating
Lower concern. Bare plastic cutting boards rarely treated with PFAS.
⚠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.