Norpro Review, Is Norpro Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 8 graded products, Norpro averages Good (50/100). On disclosure, the brand says nothing publicly about PFAS. 2 of its products grade Good or better. Grades are model-based estimates, not lab results.
Does Norpro have PFAS, by category
Worth buying from Norpro Good or better, safest first
Norpro
Silicone Baking Mat
Food-grade silicone
Silicone degradation and microparticle leaching
Over many years of repeated heating and mechanical wear, silicone can lose integrity and…
Thermal tolerance limits
Most food-grade silicone mats are rated for 400-500°F; use above stated limits may cause…
Minimal concern. Silicone baking mats carry lower PFAS risk.
⚠Risky category by default
Norpro
Jumbo Flexible Cutting Mat
flexible rubber or silicone mat, uncoated
Silicone/rubber degradation and surface pitting
Over years of use, silicone mats can develop surface cracks, stains, or permanent odors…
Bacterial or mold colonization in grooves
As a porous elastomer, silicone mats can harbor bacteria if not dried thoroughly after…
Lower concern. Flexible cutting mats typically pose minimal PFAS risk.
⚠Risky category by default
Graded and flagged Poor and Bad, we’d swap these
Norpro
Silicone Pastry Mat with Measures
Food-grade silicone
Silicone degradation and particle shedding
Long-term use, especially above 450°F or with abrasive cleaning, can cause the silicone…
Mold or bacterial growth if poorly dried
Silicone is porous at the microscopic level. If the mat is not thoroughly air-dried after…
Thermal stress and warping
Repeated exposure to sharp temperature swings (e.g., removing from a hot oven and…
Lower concern. Silicone pastry mats rarely use PFAS.
⚠Risky category by default
Norpro
Flexible Gripping Cutting Mats Set of 4
silicone or rubber cutting mats
Silicone leaching at high temperature
Food-grade silicone is stable under normal kitchen conditions, but prolonged exposure to…
Bacterial growth and maintenance
While silicone resists bacterial colonization better than wood, crevices or permanent…
Lower concern. Silicone or rubber mats unlikely PFAS, no coating.
⚠Risky category by default
Norpro
Flexible Cutting Board
Flexible plastic (likely polyethylene or polypropylene)
Polymer leaching from heat
Polyethylene and polypropylene are heat-sensitive; placing hot cookware or hot food…
Microplastic shedding from wear
Repeated cutting and knife scarring can generate microscopic plastic particles that may…
Bacterial growth in damaged surfaces
Scratches and cuts in the plastic surface can trap bacteria and food residue; this is a…
Flexible cutting board, no known PFAS risk, but no confirmation.
⚠Risky category by default
Norpro
Jumbo Pastry/Cutting Mat
Silicone mat, coating unspecified
Silicone leaching at elevated temperatures
Food-grade silicone is stable at normal kitchen use (up to 400-450°F), but prolonged…
Coating degradation over time
If a topcoat or finish exists beyond base silicone, wear and tear from repeated use…
Bacterial growth in crevices and texture
Silicone mats with textured surfaces can trap moisture and food particles in microscopic…
Unknown coating composition; limited data on PFAS risk.
⚠Nonstick, coating undisclosed
Norpro
Icon Cut N Slice Flexible Cutting Boards (Set of 3)
Flexible plastic (likely polyethylene or polypropylene), coating unspecified
Microplastics
Flexible plastic cutting boards shed microparticles when scratched, scored, or exposed to…
Antimicrobial coatings (unspecified)
Norpro does not disclose whether these boards carry antimicrobial additives (e.g., silver…
Heat-induced degradation and off-gassing
Polyethylene and polypropylene soften and may emit odors or volatile compounds if heated…
Mold and bacterial colonization (maintenance-related)
Flexible plastic boards retain water in grooves and scratches, creating niches for mold…
Wait for Norpro to disclose coating and material details.
⚠Nonstick, coating undisclosed
Norpro
48 Flexible Cutting Boards (Set of 2)
Flexible plastic/rubber cutting board, coating unspecified
BPA & bisphenols
No public records of leaching from Norpro cutting boards, but material type is…
Coating degradation and microplastic shedding
If the board has a surface coating (unknown), regular knife contact will degrade it over…
Rubber or elastomer degradation products
If the boards contain rubber or elastomer components (common in flexible designs)…
Reach out to Norpro for coating and PFAS information.
⚠Nonstick, coating undisclosed
Every grade uses the same public rubric. How grades work →