20oz TKWide with Café Cap, Tofu vs 27 oz. Stainless Mug/Water Bottle 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 Lid and gasket material degradation (polypropylene/polyacetal/silicone), Bacterial growth in lid seams and gasket and Off-gassing or odor from lid plastics 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 interior and exterior, lid with handle, which is most of the difference in these two grades.