Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid vs Steel Pop Big Square Short - 2.8 Qt/2.6 l: 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
OXO
Steel Pop Big Square Short - 2.8 Qt/2.6 l
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleLid/gasket polymer leaching
PossibleThermal stress and lid seal failure
ReportedSurface pitting from salt or acid
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 Lid/gasket polymer leaching, Thermal stress and lid seal failure and Surface pitting from salt or acid on the OXO and not on the Klean Kanteen.
- The Klean Kanteen is Stainless steel body, silicone gasket lid seal where the OXO is Stainless steel container, no surface treatment, 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