Sample - 12 oz. Sherpa Vacuum Tumbler and Slim Can Insulator - Autumn Orange vs 20oz TKWide with Café Cap, Tofu: which is safer?
Klean Kanteen 20oz TKWide with Café Cap, Tofu is our pick, better on PFAS and on the overall hazard picture.
Sample - 12 oz. Sherpa Vacuum Tumbler and Slim Can Insulator - Autumn Orange
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePlastic lid/gasket leachables (BPA, phthalates)
PossibleMold or bacterial growth in insulation
Our pick
Klean Kanteen
20oz TKWide with Café Cap, Tofu
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePowder-coat cap degradation over time
PossibleBacterial biofilm in cap threads and seals
PossibleThermal stress on seals at extreme temperatures
Where these two actually differ
- We flag Plastic lid/gasket leachables (BPA, phthalates) and Mold or bacterial growth in insulation on the and not on the Klean Kanteen.
- We flag Powder-coat cap degradation over time, Bacterial biofilm in cap threads and seals and Thermal stress on seals at extreme temperatures on the Klean Kanteen and not on the .
- The is Stainless steel tumbler with sherpa fleece insulator where the Klean Kanteen is Stainless steel bottle, stainless steel cap, which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Klean Kanteen is the one to buy.
Both products run through the same public rubric, which covers 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 insulated drink tumblers, see the full ranking