48 Flexible Cutting Boards (Set of 2) vs Silicone Grip Mat: which is safer?

Where these two actually differ

• We flag Plastic leaching (BPA/BPS, general plasticizers), Coating degradation and microplastic shedding and Rubber or elastomer degradation products on the Norpro and not on the Silikomart.
• We flag Siloxane leaching (low-molecular-weight oligomers), Microparticle shedding from grip surface and Mold or bacterial growth in surface texture on the Silikomart and not on the Norpro.
• The Norpro is Flexible plastic/rubber cutting board, coating unspecified where the Silikomart is silicone rubber grip mat, non-coated, which is most of the difference in these two grades.
• The gap is 65 points, wide enough that this is not a close call, and the Silikomart is the one to buy.
• We are less certain about the Norpro grade, at 35% confidence against 82%, because it discloses less.