Contigo Wells Plastic Filter Water Bottle with Autospout Straw Lid
Lower concern for typical use, no PFAS disclosure available.
Contigo doesn't disclose PFAS in this bottle. Plastic bodies and carbon filters typically carry lower PFAS risk than Teflon-family coating coatings.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Plastic bottle body, activated carbon filter
Lab data
No public lab test
What Contigo Wells Plastic Filter Water Bottle is made of, ingredients and materials
The Contigo Wells bottle uses a plastic body (typically copolyester or similar food-grade resin) paired with an activated carbon filter cartridge. Activated carbon is inert and does not leach; the primary concern is the plastic itself at different temperatures. Contigo's plastic formulations are generally BPA-free per product labeling, though third-party verification of all components is limited in public records.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial growth in filter if not replaced
Activated carbon filters trap water-borne particles and can harbor bacteria if left in service past rated capacity. Contigo does not provide frequent-replacement reminders; user discipline is required to prevent contamination.
Plastic degradation with heat
BPA-free plastics used in consumer water bottles can still leach minor degradation products or lose structural integrity if repeatedly exposed to hot liquids or high temperatures. This product is not rated for boiling water.
Seal and lid degradation
Autospout lids use rubber or silicone seals that can degrade with repeated washing, temperature cycling, or mold growth if not dried thoroughly. This may allow leakage or harbor bacteria rather than pose direct chemical toxicity.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Microplastic shedding from bottle wear
No recalls or reports document microplastic release from Contigo Wells bottles under normal use. Risk increases with age, scratching, and UV exposure; inspect the interior for visible wear over years of service.
Filter housing leachables
The filter cartridge housing materials are not publicly detailed by Contigo. Activated carbon itself is inert; any hazard would stem from adhesives or plastics in the cartridge assembly, which are not documented as a concern in this product line.
The full breakdown
The brand's record and disclosure
Contigo does not publicly disclose detailed material certifications or PFAS testing results for this model. The brand has not faced major product recalls tied to leaching or contamination in the water-bottle category. No formal third-party certifications (NSF, WaterMark, etc.) are prominently claimed for the Wells filter specifically, which limits independent verification of filter performance and material safety.
How it compares in its category
Plastic filter bottles occupy a middle ground, cheaper and lighter than stainless-steel alternatives, but less durable and prone to wear. Activated carbon filters in consumer bottles are standard and uncontroversial; they do not introduce known toxins. Competitors (Brita, PUR, Pur) often carry NSF certification; Contigo's lack of visible third-party endorsement is a minor differentiator but not a red flag.
If you buy it
Replace the activated carbon filter every 40-60 gallons (roughly 2-3 months at typical use) to prevent bacterial growth inside a saturated filter and maintain filtration. Do not fill with hot water above 140F, as plastic degradation accelerates at temperature. Inspect the bottle periodically for cracks, cloudiness, or off-odors; discard if the plastic shows visible stress. Hand-wash rather than dishwasher if concerned about heat exposure to the lid seals.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Contigo has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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More water filters grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.