27oz Wide Water Bottle with Loop Cap vs FreeSip Water Bottle - Owala Neo Sage / Stainless Steel / 32oz: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
Klean Kanteen
27oz Wide Water Bottle with Loop Cap
PFAS grade
A 100/100
Overall grade
B 88/100
Verdict
Buy
Hazard flags
⚑ 3
Material
18/8 stainless steel, no interior coating
Confidence
92%
PossibleNickel leaching from stainless steel
PossibleSurface corrosion and pitting over time
PossibleBacterial growth in cap seals
Owala
FreeSip Water Bottle - Owala Neo Sage / Stainless Steel / 32oz
PFAS grade
A 100/100
Overall grade
B 88/100
Verdict
Buy
Hazard flags
⚑ 3
Material
Stainless steel, no reported coating
Confidence
78%
PossibleSeal and gasket degradation
PossibleStainless steel corrosion (rare)
PossibleBacterial growth in standing water
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