16oz Rise Classic with Flip Seal Sport Cap vs 27oz Wide Water Bottle with Loop Cap: which is safer?
Klean Kanteen 27oz Wide Water Bottle with Loop Cap is our pick, better on PFAS and on the overall hazard picture.
Klean Kanteen
16oz Rise Classic with Flip Seal Sport Cap
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleThermoplastic cap degradation and leaching
ReportedBacterial or mold growth in cap seal
PossibleCap assembly or closure failure
Our pick
Klean Kanteen
27oz Wide Water Bottle with Loop Cap
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCap or closure contamination
PossibleBacterial or mold growth from moisture retention
Where these two actually differ
- We flag Thermoplastic cap degradation and leaching, Bacterial or mold growth in cap seal and Cap assembly or closure failure on the Klean Kanteen and not on the Klean Kanteen.
- We flag Cap or closure contamination and Bacterial or mold growth from moisture retention on the Klean Kanteen and not on the Klean Kanteen.
- The Klean Kanteen is 18/8 stainless steel body, thermoplastic cap where the Klean Kanteen is 18/8 stainless steel, no interior coating, which is most of the difference in these two grades.
- These two are 5 points apart, close enough that price and fit should decide it rather than our grade.
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 portable water bottles, see the full ranking