Owala Review, Is Owala Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 6 graded products, Owala averages Excellent (98/100). On disclosure, the brand says nothing publicly about PFAS. 6 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Owala Good or better, safest first
Owala
FreeSip Stainless Steel Water Bottle
Stainless steel with plastic lid/spout
BPA & bisphenols
Owala does not publicly specify the plastic type (likely polypropylene or polyester) or…
Bacterial growth in straw/spout assembly
The FreeSip's flip-straw mechanism creates crevices and wet environments that can harbor…
Gasket/seal degradation over time
Silicone or rubber gaskets in the lid can degrade after repeated washing or prolonged sun…
Low risk. Stainless steel construction means no known PFAS concerns.
✓Bare metal or glass, no coating at all
Owala
30 fl oz Stainless Steel Special Edition FreeSip Sway Insulated Water Bottle
Stainless steel interior and exterior, plastic lid and spout
PFAS
The plastic components (lid, spout, seals) are not independently tested or certified…
Silicone gasket degradation
User reports on retail sites mention occasional leaking or discoloration of the silicone…
Bacterial or mold growth in valve assembly
The FreeSip valve mechanism has crevices that can trap water if not fully dried after…
Thermal stress to plastic components
The bottle is advertised as insulated and suitable for hot liquids up to boiling…
Low risk. Stainless steel core suggests minimal PFAS exposure.
✓Bare metal or glass, no coating at all
Owala
FreeSip Water Bottle - Owala Neo Sage / Stainless Steel / 32oz
Stainless steel, no reported coating
Seal and gasket degradation
Elastomer seals in the lid can degrade with repeated thermal stress or prolonged contact…
Stainless steel corrosion (rare)
While food-grade stainless steel is highly corrosion-resistant, prolonged exposure to…
Bacterial growth in standing water
Any reusable water bottle can harbor bacteria if not dried completely between uses or if…
Low risk. Bare stainless steel carries no known PFAS risk.
✓Bare metal or glass, no coating at all
Owala
25-oz FreeSip Tritan
Tritan copolyester (BPA-free plastic)
Microplastics
Repeated dishwasher cycles and hot water contact may cause microscopic plastic particles…
Lid gasket or valve bacterial colonization
Owala FreeSip lids contain rubber gaskets and a silicone valve that can harbor mold or…
Lower risk; Tritan has no known PFAS use.
⚠Brand says nothing about PFAS
Owala
FreeSip Tritan Sports Water Bottle
Tritan copolyester plastic (bottle body)
Microplastics
All plastics shed micro-particles as they degrade, especially with thermal cycling…
Bacterial growth in valve or lid crevices
The FreeSip's flip-cap and drinking valve design creates small spaces where moisture and…
Low risk, Tritan plastic is inherently PFAS-free despite no brand statement.
⚠Brand says nothing about PFAS
Owala
FreeSip Sway Water Bottle
Plastic bottle with stainless steel interior
Bacterial growth in lid mechanism
The FreeSip flip-top lid has internal crevices where water droplets can remain between…
Microplastics
If silicone gaskets are worn or damaged over years of use, small particles may shed into…
Low risk but lacks PFAS transparency from the manufacturer.
⚠Brand says nothing about PFAS
Every grade uses the same public rubric. How grades work →