Clearly Filtered · Water Filters
20oz Silicone Bottle with Straw and Adaptor
Lower concern product, but brand makes no PFAS commitment. Verify if concerned.
Silicone is a lower-risk material for PFAS compared to Teflon-family coating or treated coatings. However, Clearly Filtered does not publicly disclose PFAS testing or make PFAS-free claims for this bottle. Straw and adapter materials are unspecified.
We flunk more products than we pass. This one earned its grade. How we grade
Material
silicone bottle body with straw and adapter
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What 20oz Silicone Bottle with Straw is made of, ingredients and materials
The bottle body is food-grade silicone, a polymer that does not contain BPA, BPS, or phthalates by chemical definition. Silicone is thermally stable and resistant to degradation under normal use, meaning it does not leach plasticizers when filled with cold or warm water. The straw and adapter are typically polypropylene or silicone as well. No metal components (like aluminum or stainless steel lids with epoxy liners) are involved, eliminating lead or cadmium coating risks.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial growth in straw and adapter
Straws and adapters are narrow passages where water residue can trap bacteria if not dried thoroughly between uses. This is a usage-dependent risk, not a material defect, and is common to all reusable straws.
Mold or mildew growth on material surface
Silicone can retain moisture in texture grooves or seals if not fully dried. This is a maintenance issue, not a material toxicity risk, and is managed by air-drying after each wash.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Silicone leaching under heat stress
Food-grade silicone does not leach harmful chemicals under typical drinking water temperatures. Degradation or leaching has not been documented in peer-reviewed studies for this product's intended use.
Microplastics
Silicone does not fragment into microplastics during normal handling, filling, or storage. Unlike plastic bottles, there is no established mechanism for microplastic release from silicone.
Source, EPA ↗Heavy metals
Food-grade silicone typically does not contain cadmium or lead pigments. No recalls or contamination reports exist for Clearly Filtered silicone bottles on this basis.
Source, FDA ↗The full breakdown
The brand's record and disclosure
Clearly Filtered is known primarily for water filtration products and makes claims around reducing contaminants in drinking water. The brand does not publicly state a formal PFAS-free commitment or third-party certification for this bottle. No major recalls or safety controversies are on record for this product. The lack of explicit PFAS transparency is notable given that water bottles increasingly face scrutiny over PFAS in components like seals or coatings; if this is a key concern, direct contact with the manufacturer is advisable.
How it compares in its category
Silicone water bottles present lower concern than polycarbonate or polystyrene alternatives because silicone is not a material linked to BPA and phthalate leaching. They rank similarly to stainless steel or glass in terms of chemical stability, though silicone lacks the temperature range of metal. Unlike plastic bottles, silicone does not degrade into microplastics during normal use. This product's straw inclusion is standard and poses no additional hazard if cleaned regularly to prevent bacterial biofilm.
If you buy it
Clean the straw and adapter thoroughly after each use and allow them to dry completely to prevent microbial growth in crevices. Avoid dishwasher cycles above 65°C (150°F) as repeated high heat can degrade silicone seals over time, though typical hand washing poses no risk. Replace the bottle if the silicone develops cracks, tears, or persistent odors that do not wash out. Store dry to prevent mold growth inside the straw.
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
- Clearly Filtered has made none
Formulations change between production runs, so check the current label. How we grade.
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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.