Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid vs 3L Daytrip Lunch Box in Olive: which is safer?
Klean Kanteen Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid is the clear pick. YETI 3L Daytrip Lunch Box in Olive carries a failing PFAS grade, and we never recommend buying a failing product.
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
Yeti
3L Daytrip Lunch Box in Olive
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePhthalates in polyester/nylon fabric or coatings
PossibleMicroplastics or fiber shedding
LikelyCoating degradation and leachables from water-resistant finish
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 Yeti.
- We flag Phthalates in polyester/nylon fabric or coatings, Microplastics or fiber shedding and Coating degradation and leachables from water-resistant finish on the Yeti and not on the Klean Kanteen.
- The Klean Kanteen is Stainless steel body, silicone gasket lid seal where the Yeti is Foam liner with sealed exterior (likely polyester/nylon with DWR coating), which is most of the difference in these two grades.
- The gap is 75 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 Yeti grade, at 45% confidence against 82%, because it discloses less.
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