HA1 Expert Nonstick 11" Square Grill Pan vs Contemporary Stainless Steel Round Grill Pan: which is safer?

Where these two actually differ

• We flag PTFE thermal degradation and fume release, Coating wear and microparticulate shedding, Aluminum core leaching (if aluminum substrate) and Coating adhesion and bonding durability on the All-Clad and not on the Calphalon.
• We flag Stainless steel nickel or chromium leaching under acidic conditions on the Calphalon and not on the All-Clad.
• The All-Clad is PTFE non-stick coating, as disclosed by All-Clad where the Calphalon is stainless steel, non-nonstick, which is most of the difference in these two grades.
• The gap is 70 points, wide enough that this is not a close call, and the Calphalon is the one to buy.
• We are less certain about the All-Clad grade, at 35% confidence against 82%, because it discloses less.