DUO Set of 3 Double-Sided Colour Coded Chopping Board Mat Set vs Silicone Grip Mat: which is safer?

Where these two actually differ

• We flag Leaching from polypropylene at elevated temperatures, Surface degradation and microplastic shedding over time and Bacterial growth and biofilm formation on the Joseph Joseph 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 Joseph Joseph.
• The Joseph Joseph is Polypropylene (PP) mats, colour-coded plastic where the Silikomart is silicone rubber grip mat, non-coated, which is most of the difference in these two grades.