27oz Wide Water Bottle with Loop Cap vs 36oz Stainless Steel Water Bottle with Gift Box: 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

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

Ozark Trail 36oz Stainless Steel Water Bottle with Gift Box

Ozark Trail

36oz Stainless Steel Water Bottle with Gift Box

PFAS grade

Excellent 80/100

Overall grade

Excellent 76/100

Verdict

Buy

Hazard flags

⚑ 1

Material

Stainless steel, no coating disclosed

Confidence

82%

PossibleBacterial or mold growth

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 Ozark Trail.
  • We flag Bacterial or mold growth on the Ozark Trail and not on the Klean Kanteen.
  • The Klean Kanteen is 18/8 stainless steel, no interior coating where the Ozark Trail is Stainless steel, no coating disclosed, 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 portable water bottles: see the full ranking