27oz Wide Water Bottle with Loop Cap vs 32 oz Tritan Plastic Chug Water Bottle: 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 32 oz Tritan Plastic Chug Water Bottle

Ozark Trail

32 oz Tritan Plastic Chug Water Bottle

PFAS grade

Good 70/100

Overall grade

Good 62/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Tritan copolyester plastic, no intentional coatings

Confidence

75%

PossibleMicroplastics generation on heating

PossibleDurability and degradation over years

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 Microplastics generation on heating and Durability and degradation over years 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 Tritan copolyester plastic, no intentional coatings, 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: 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