Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid vs Soft Lunch Box Upright: which is safer?

Where these two actually differ

• We flag Silicone gasket degradation, Bacterial growth in vacuum seal and Surface corrosion under acidic conditions on the Klean Kanteen and not on the Thermos.
• We flag Formaldehyde or azo dyes in polyester, Foam insulation off-gassing or breakdown, Microplastic or fiber shedding into food and Mold or bacterial growth if wet on the Thermos and not on the Klean Kanteen.
• The Klean Kanteen is Stainless steel body, silicone gasket lid seal where the Thermos is polyester, nylon, foam insulation, which is most of the difference in these two grades.
• The gap is 30 points, wide enough that this is not a close call, and the Klean Kanteen is the one to buy.