27oz Wide Water Bottle with Loop Cap vs 24oz Explorer Bottle - Assorted (Himalayan Salt): which is safer?
Klean Kanteen 27oz Wide Water Bottle with Loop Cap is our pick, better on PFAS and on the overall hazard picture.
Our pick
Klean Kanteen
27oz Wide Water Bottle with Loop Cap
PFAS grade
Excellent 100/100
Overall grade
Excellent 92/100
Verdict
Buy
Hazard flags
⚑ 2
Material
18/8 stainless steel, no interior coating
Confidence
92%
PossibleCap or closure contamination
PossibleBacterial or mold growth from moisture retention
S'well
24oz Explorer Bottle - Assorted (Himalayan Salt)
PFAS grade
Good 70/100
Overall grade
Good 62/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Stainless steel body, plastic/silicone lid and cap
Confidence
72%
PossibleSilicone/plastic lid bacterial growth and contamination
PossibleSeal or gasket degradation over time
Where these two actually differ
- We flag Cap or closure contamination and Bacterial or mold growth from moisture retention on the Klean Kanteen and not on the S'well.
- We flag Silicone/plastic lid bacterial growth and contamination and Seal or gasket degradation over time on the S'well and not on the Klean Kanteen.
- The Klean Kanteen is 18/8 stainless steel, no interior coating where the S'well is Stainless steel body, plastic/silicone lid and cap, which is most of the difference in these two grades.
- The gap is 30 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 portable water bottles, see the full ranking