Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid vs Prep & Go 4.1-Cup Leakproof Divided Lunch Container, Meal Prep Food Storage Container for Lunch Prep Work, School an: 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 OXO.
• We flag Microplastics from container degradation and PFAS in plastic or manufacturing fluoropolymer additives on the OXO and not on the Klean Kanteen.
• The Klean Kanteen is Stainless steel body, silicone gasket lid seal where the OXO is BPA-free plastic container, tritan copolyester lid, 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.