20oz TKWide with Café Cap, Tofu vs Insulated Stainless Steel Travel Tumbler with Handle and Flip Straw Lid: 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 Ozark Trail.
• We flag Silicone gasket degradation and microparticle shedding and Bacterial growth in lid and straw assembly on the Ozark Trail and not on the Klean Kanteen.
• The Klean Kanteen is Stainless steel bottle, stainless steel cap where the Ozark Trail is stainless steel with silicone gasket and plastic lid, which is most of the difference in these two grades.