Pyrex · Silicone Cutting & Prep Boards
JFVKAF 36 x 24 in. Silicone Translucent Mat Heat Resistant Multipurpose Countertop Craft Kitchen Workbench with 2mm Thic
Silicone mats typically lower PFAS risk, but verify seller authenticity.
This silicone countertop mat has no nonstick coating or water-resistant treatment stated, lowering PFAS concern. However, no PFAS claim from brand and counterfeits exist; confirm seller legitimacy.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Silicone mat, no coating mentioned
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 product is a food-grade silicone mat, a thermoset polymer backbone with no ceramic, enamel, or non-stick coating applied. Silicone itself does not leach lead, cadmium, or Teflon-type coating fumes because it contains none of these substances. The 2mm thickness suggests a reinforced mat formulation, likely blended with fiberglass or similar filler for durability. Silicone's chemical stability under normal kitchen heat (up to 400-500°F, well within typical mat specs) means minimal leaching risk compared to coated cookware.
The brand's record and disclosure
Pyrex is owned by Instant Brands and is known for borosilicate glassware; however, this listing appears to be a silicone mat sold under the Pyrex name, which warrants caution regarding authenticity. Pyrex has not publicly disclosed specific silicone mat sourcing, testing standards, or third-party certifications (FDA, NSF) for this product line. No recalls or contamination incidents specific to Pyrex silicone mats are on record, but the brand's silence on food-contact silicone specifications is notable. Counterfeit or gray-market Pyrex products are common online, so seller verification is critical.
How it compares in its category
Silicone mats are among the lowest-risk cooking surfaces available, avoiding the coating-degradation and heavy-metal leaching risks of enameled cast iron, glazed ceramics, or non-stick cookware. Unlike Teflon-type coating-based products (Teflon), silicone does not off-gas toxic fumes at typical kitchen temperatures. However, quality varies widely by manufacturer; unknown-brand silicone mats may use unregulated fillers or lower-grade silicone that degrades faster or contains trace contaminants. This product's comparison value depends heavily on whether it is authentic Pyrex-source material or a third-party rebranding.
If you buy it
Confirm the seller is authorized or the product is new and sealed to rule out counterfeits or contaminated stock. Do not exceed the stated heat limit (typically 400-500°F for food-grade silicone); use in oven, not directly on stovetop flame. Inspect regularly for tears, stickiness (sign of degradation), or discoloration; replace if any occur. Hand wash with mild soap or wipe clean; avoid abrasive scrubbing that can shorten mat lifespan. Store flat or rolled loosely 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.”
Coating degradation and heavy-metal leaching
Silicone mats have no applied ceramic, enamel, or glaze coating, so the degradation, chipping, and lead/cadmium leaching risks associated with coated cookware do not apply to this material class.
Teflon-type coating fume risk
This product is formulated from silicone, not Teflon-type coating (Teflon) or other Teflon-family coating, so thermal decomposition fumes at cooking temperatures are not a hazard.
Filler or contaminant leaching from silicone base
Low-quality silicone mats or counterfeit products may use uncertified fillers (talc, clay, recycled polymers) or silicone that does not meet FDA food-contact standards. Authentic Pyrex sourcing and third-party food-contact certification are not publicly confirmed for this listing.
Thermal degradation at extreme heat
Silicone mats are safe up to stated limits (typically 400-500°F), but exceeding this temperature or repeated high-heat exposure may cause silicone to soften, release volatile compounds, or degrade structure. User adherence to heat limits is critical.
Seller authenticity and counterfeit risk
Pyrex products, especially lower-cost items like silicone mats, are frequently counterfeited or gray-marketed online. Counterfeit products may not meet food-contact safety standards or may contain unapproved materials. Verify seller authorization or purchase directly from established retailers.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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 & 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.