40cm Round Nonstick Ptfe BBQ Grill Mat vs Bbq Silicone Mat for Weber, Scratch Resistant Design with Organized Slots for Tools and Seasonings, Heat Resistant (black), Multicolor: which is safer?

Where these two actually differ

• We flag PTFE thermal decomposition and fume inhalation risk, Coating degradation and peeling into food, Substrate leachables from fiberglass backing and Heat-induced material breakdown and off-gassing on the GRILL MASTER and not on the Weber.
• We flag Silicone additive/filler contamination (unspecified), Thermal degradation at extreme temperatures, Microplastic shedding if mat degrades and Coating degradation or peeling on the Weber and not on the GRILL MASTER.
• The GRILL MASTER is PTFE (polytetrafluoroethylene) nonstick coating where the Weber is silicone (no nonstick fluoropolymer coating disclosed), which is most of the difference in these two grades.
• The gap is 60 points, wide enough that this is not a close call, and the Weber is the one to buy.