Bentgo MicroSteel Lunch Box vs Lunch Food Box: which is safer?
Klean Kanteen Lunch Food Box is our pick: better on PFAS and on the overall hazard picture.
Bentgo MicroSteel Lunch Box
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleSilicone gasket degradation
PossibleBacterial growth in seal crevices
Our pick
Klean Kanteen
Lunch Food Box
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleBamboo fiber lid degradation or contaminant absorption
PossibleGasket or seal material composition
PossibleBamboo fiber formaldehyde or chemical treatment residue
Where these two actually differ
- We flag Silicone gasket degradation and Bacterial growth in seal crevices on the and not on the Klean Kanteen.
- We flag Bamboo fiber lid degradation or contaminant absorption, Gasket or seal material composition and Bamboo fiber formaldehyde or chemical treatment residue on the Klean Kanteen and not on the .
- The is Stainless steel with silicone gaskets where the Klean Kanteen is stainless steel with bamboo fiber lid, 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 & food containers: see the full ranking