Art Elements Polymer Clay Silicone Baking Mat Oven Safe Non-Stick Work Mat for Clay with Measuring Grid vs Functional Form Cutting Board Set, 3-Piece: which is safer?

Where these two actually differ

• We flag Silicone polymer degradation at extreme heat, Printed grid ink migration and Mold or bacterial growth if stored damp on the ArtSkills and not on the Fiskars.
• 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 ArtSkills.
• The ArtSkills is Silicone baking mat where the Fiskars is Polypropylene or similar plastic; no nonstick or waterproof coating disclosed, which is most of the difference in these two grades.
• We are less certain about the ArtSkills grade, at 35% confidence against 72%, because it discloses less.