20oz TKWide with Café Cap, Tofu vs 34 oz. Stainless Mug with Lid Handle: which is safer?

Where these two actually differ

• We flag Powder-coat cap degradation over time, Bacterial biofilm in cap threads and seals and Thermal stress on seals at extreme temperatures on the Klean Kanteen and not on the Zojirushi.
• We flag Silicone gasket degradation and off-gassing, Microbial growth (mold, bacteria) in gasket seams and Lid latch or handle durability on the Zojirushi and not on the Klean Kanteen.
• The Klean Kanteen is Stainless steel bottle, stainless steel cap where the Zojirushi is stainless steel with silicone lid gasket, which is most of the difference in these two grades.