Crystal Click Seal Shake Tumbler Cup for Hot or Cold Drinks vs 20oz TKWide with Café Cap, Tofu: which is safer?

Where these two actually differ

• We flag Degradation and microplastic shedding from heat or wear, Bacterial growth in seal and closure mechanism and Material transparency and undisclosed polymer or additives on the Cupture 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 Cupture.
• The Cupture is Plastic tumbler with click seal lid where the Klean Kanteen is Stainless steel bottle, stainless steel cap, which is most of the difference in these two grades.
• The gap is 25 points, wide enough that this is not a close call, and the Klean Kanteen is the one to buy.