Norpro · Silicone Cutting Mats & Prep Boards
Norpro Silicone Baking Mat
Lower concern. Silicone baking mats carry minimal PFAS risk.
Norpro silicone baking mats are made from food-grade silicone, an inherently PFAS-free material with no Teflon-family coating nonstick coatings. No known PFAS concern for this product type.
Shop Norpro on Amazon →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.
The full breakdown
What it's made of and why it matters
Norpro silicone baking mats are made from food-grade silicone, a synthetic rubber polymer that does not contain the ceramic, enamel, or metal coatings present in traditional bakeware. Silicone is chemically inert at typical baking temperatures (up to 500°F for most commercial mats) and does not leach toxic metals like lead or cadmium. Unlike Teflon-type coating-coated (Teflon) cookware, silicone baking mats do not generate hazardous fumes when overheated because the material itself is not a Teflon-family coating.
The brand's record and disclosure
Norpro is a long-established cookware and baking accessories brand but maintains minimal public transparency on material sourcing or third-party testing. The company makes no formal PFAS or heavy-metals certification claims for this product line. No recalls or safety incidents involving Norpro silicone baking mats have been widely reported in consumer safety databases, suggesting either a safe product history or lack of systematic monitoring.
How it compares in its category
Silicone baking mats are among the safest non-stick bakeware options available, with a lower hazard profile than traditional Teflon-coated sheet pans or ceramic-glazed cookware that may contain lead. They avoid the coating-degradation and metal-leaching risks of enameled cast iron or older non-stick surfaces. Parchment paper is a comparable alternative but generates more waste; silicone mats are reusable and durable, making them a practical choice for frequent bakers.
If you buy it
Use the mat on a stable oven rack to prevent shifting, and stay within the manufacturer's stated heat limit (typically 500°F). Hand wash with warm soapy water rather than dishwashing machine to extend lifespan; harsh detergents and high heat may degrade the silicone over years of use. Inspect annually for cracks, stickiness loss, or discoloration; replace if the surface becomes tacky or tears develop. Store flat or loosely rolled to prevent permanent creasing.
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 degradation and microparticle leaching
Over many years of repeated heating and mechanical wear, silicone can lose integrity and shed microscopic particles into food. This is not widely documented as a clinical hazard, but prolonged use at temperature extremes may increase risk.
Thermal tolerance limits
Most food-grade silicone mats are rated for 400-500°F; use above stated limits may cause the material to soften, off-gas, or degrade faster. Individual products vary; exceeding manufacturer specs carries unknown chemical release risks.
Manufacturing residue or uncrosslinked oligomers
Food-grade silicone from reputable suppliers is generally low in leachable oligomers, but Norpro does not publish third-party testing data. If sourcing controls are weak, minor quantities of uncrosslinked silicone compounds could migrate to food, particularly in fatty or acidic foods at high heat.
Heavy metals in pigments (if colored)
Norpro silicone mats are typically white or off-white. If pigments are added for color, FDA-cleared colorants are standard, but independent testing on this specific product is not publicly available. Risk is very low if the mat is plain or contains only FDA-approved dyes.
Non-stick coating or surface treatment hazards
Unlike Teflon-type coating bakeware, silicone mats are not coated with a separate non-stick layer. The non-stick property is inherent to silicone itself, so there is no risk of coating flaking or Teflon-type coating fume release.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% 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 silicone cutting mats & 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.