Lekue · Cookie Sheets
Lekue Silicone Baking Mat
Lower-concern choice; silicone mats avoid Teflon-family coating nonstick coatings associated with PFAS.
Lekue silicone baking mats are made from food-grade silicone, which does not rely on Teflon-family coating or Teflon-type coating coatings typical of traditional nonstick cookware. Silicone is an inert, synthetic rubber material not inherently linked to PFAS contamination.
Shop Lekue on Amazon →Material
Food-grade silicone
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.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Lekue baking mats are composed of food-grade silicone, a synthetic polymer that does not require fluorinated nonstick coatings. Silicone is chemically stable at typical baking temperatures (up to 220°C/428°F for most products) and does not degrade into volatile compounds during normal use. Unlike ceramic or enamel coatings on traditional pans, silicone mats are monolithic and do not chip, flake, or leach inorganic particles into food.
The brand's record and disclosure
Lekue is a Spanish kitchen-products company with a general reputation for silicone-based cookware and baking tools. The brand does not publicly disclose detailed material testing or third-party certifications for these mats on widely available consumer databases. No major recalls or safety controversies specific to Lekue silicone baking mats have been documented in public health records; the company's silence on PFAS stance reflects a lack of proactive transparency rather than a known problem.
How it compares in its category
Silicone baking mats are a safer alternative to traditional nonstick-coated metal sheets or ceramic-glazed pans, which may leach lead or cadmium from glazes, or degrade and expose metal substrates. Compared to Teflon-family coating-coated (Teflon-type coating) baking sheets, silicone eliminates the risk of Teflon-type coating degradation and fume release at high heat. Lekue's product sits in the mainstream consumer silicone-mat segment, with no distinguishing performance or safety advantages over generic food-grade silicone alternatives.
If you buy it
Use the mat within manufacturer temperature limits (typically up to 220°C); exceeding this voids its safety margin. Hand-wash with warm soapy water or place in the dishwasher; avoid abrasive scrubbers that can scar the surface. Replace the mat if it develops tears, permanent discoloration, or a sticky surface, which may indicate polymer degradation. Store flat or loosely rolled to prevent creasing that could compromise its non-stick properties over time.
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
No peer-reviewed studies document detectable migration of silicone oligomers or additives from food-grade silicone baking mats into food at temperatures and durations typical of home baking. Long-term safety data remain limited.
Heat degradation and fume release
If heated above manufacturer specifications (above 220°C for most food-grade silicone mats), silicone can degrade and release volatile organic compounds. Lekue product documentation should clearly state maximum temperature; exceeding it carries unknown risk.
Surface wear and microparticle shedding
Repeated use with sharp utensils or high-temperature contact can scar or pit the silicone surface. Microscopic particles released into food have not been quantified, but mechanical degradation increases this theoretical risk.
Adhesive or filler contaminants in reinforcement layers
Some silicone mats include fiberglass or fabric reinforcement bonded with adhesives. Lekue's mat composition and adhesive chemistry are not publicly disclosed; no recalls or leaching reports are on record, but transparency is limited.
Bacterial or mold growth if improperly cleaned or stored
Silicone's porous microstructure can trap bacteria or fungi if not thoroughly dried after washing or if stored in humid conditions. This is a hygiene issue rather than material toxicity, but warrants proper maintenance.
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 Cookie Sheets
GreenPan
GreenLife Ceramic Nonstick Cookie Sheet
Ceramic nonstick coating
Lower concern: ceramic nonstick cookware with public PFAS-free positioning, though no independent lab verification.
⚠Risky category by default
GreenPan
Premiere Ovenware Ceramic Nonstick Half Sheet Baking Pan
Ceramic nonstick coating
Lower-concern nonstick option; ceramic coating replaces Teflon-family coating, though independent PFAS testing of this specific product is limited.
⚠Risky category by default
GreenPan
GreenLife Ceramic Nonstick Cookie Sheet
ceramic nonstick coating
Lower-concern nonstick option; ceramic coating avoids known Teflon-family coating, but independent PFAS testing is limited.
⚠Risky category by default
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.