Functional Form Cutting Board Set, 3-Piece vs Silicone & Fiberglass Mat: which is safer?

Functional Form Cutting Board Set, 3-Piece is the clear pick. Silikomart Silicone & Fiberglass Mat carries a failing PFAS grade, and we never recommend buying a failing product.

Our pick

Fiskars

Functional Form Cutting Board Set, 3-Piece

PFAS grade

Excellent 85/100

Overall grade

Good 63/100

Verdict

Buy

Hazard flags

⚑ 4

Material

Polypropylene or similar plastic; no nonstick or waterproof coating disclosed

Confidence

72%

PossibleMicroplastic shedding from cutting action

ReportedBacterial biofilm accumulation in deep cuts

PossibleStaining and odor retention

Silikomart Silicone & Fiberglass Mat

Silikomart

Silicone & Fiberglass Mat

PFAS grade

Good 65/100

Overall grade

Good 57/100

Verdict

Skip

Hazard flags

⚑ 2

Material

Silicone and fiberglass, no coating specified

Confidence

82%

PossibleFiberglass fiber shedding

PossibleSurface contamination and bacterial growth

Where these two actually differ

  • We flag Microplastic shedding from cutting action, Bacterial biofilm accumulation in deep cuts, Staining and odor retention and Heat-induced warping or leaching on the Fiskars and not on the Silikomart.
  • We flag Fiberglass fiber shedding and Surface contamination and bacterial growth on the Silikomart and not on the Fiskars.
  • The Fiskars is Polypropylene or similar plastic; no nonstick or waterproof coating disclosed where the Silikomart is Silicone and fiberglass, no coating specified, which is most of the difference in these two grades.

Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More silicone cutting & prep boards, see the full ranking