Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid vs Stainless Steel Lunch Box with Lock Lid,Portable Bento Box with Handle,Round Thermal Food Container,Multi-Purpose Storag: which is safer?
Klean Kanteen Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid is our pick: better on PFAS and on the overall hazard picture.
Our pick
Klean Kanteen
Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleSilicone gasket degradation
PossibleBacterial growth in vacuum seal
PossibleSurface corrosion under acidic conditions
Stainless Steel Lunch Box with Lock Lid,Portable Bento Box with Handle,Round Thermal Food Container,Multi-Purpose Storag
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePlastic lid and handle degradation over time
PossibleMicroplastics from plastic wear
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 .
- We flag Plastic lid and handle degradation over time and Microplastics from plastic wear on the and not on the Klean Kanteen.
- The Klean Kanteen is Stainless steel body, silicone gasket lid seal where the is stainless steel body, plastic locking lid and handle, which is most of the difference in these two grades.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More lunch boxes: see the full ranking