Sport Canteen vs 16oz Rise Tumbler: which is safer?
Klean Kanteen 16oz Rise Tumbler is our pick: better on PFAS and on the overall hazard picture.
Corkcicle
Sport Canteen
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleInsulation material off-gassing (VOCs)
PossibleCap or lid seal material degradation
PossibleBacterial growth in insulation or seams
Our pick
Klean Kanteen
16oz Rise Tumbler
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePowder-coat finish degradation
PossibleSeal degradation and microbial growth
PossibleThermal shock to seals
Where these two actually differ
- We flag Insulation material off-gassing (VOCs), Cap or lid seal material degradation and Bacterial growth in insulation or seams on the Corkcicle and not on the Klean Kanteen.
- We flag Powder-coat finish degradation, Seal degradation and microbial growth and Thermal shock to seals on the Klean Kanteen and not on the Corkcicle.
- The Corkcicle is stainless steel with non-PTFE insulation where the Klean Kanteen is Stainless steel body, powder-coat finish, 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: 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