Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid vs Bento box container MB container MB Original 2020 Made in France: 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 Monbento.
• We flag BPA and BPS leaching, Microplastics from wear and heating and Bacterial or mold growth in seams and closures on the Monbento and not on the Klean Kanteen.
• The Klean Kanteen is Stainless steel body, silicone gasket lid seal where the Monbento is plastic container, material type not publicly specified, 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.
• We are less certain about the Monbento grade, at 45% confidence against 82%, because it discloses less.