20oz TKWide with Café Cap, Tofu vs Stainless Cool Bottle: 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 Gasket and cap material degradation, Bacterial biofilm in cap assembly and Thermal shock cracking or seal failure 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 bottle, no interior coating disclosed, which is most of the difference in these two grades.