Ashland Chill 2.0 Stainless Steel Water Bottle vs 20oz TKWide with Café Cap, Tofu: which is safer?

Where these two actually differ

• We flag Plastic lid and gasket components, Bacterial biofilm in crevices and Dent and surface damage leading to oxidation on the Contigo and not on the Klean Kanteen.
• 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 Contigo.
• The Contigo is stainless steel, bare uncoated where the Klean Kanteen is Stainless steel bottle, stainless steel cap, which is most of the difference in these two grades.