HydroJug · Portable Water Bottles
Traveler 40 oz Stainless Steel Water Bottle
Lower concern. Bare stainless steel bottle, no PFAS-prone coatings identified.
HydroJug's stainless steel water bottle is an uncoated metal container with no disclosed surface treatments. Stainless steel itself does not require PFAS, making this lower concern for PFAS exposure.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel body, no coating disclosed
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Traveler 40 oz Stainless Water Bottle is made of, ingredients and materials
The Traveler 40 oz is a stainless steel vessel with no disclosed surface coating, enamel, or ceramic lining. Bare stainless steel (typically 18/8 or 18/10 grade) does not leach significant quantities of lead, cadmium, or other heavy metals under normal use. The material is non-reactive with water and acidic beverages at room temperature, and stainless steel does not off-gas volatile organic compounds or formaldehyde as it ages.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial or mold growth in storage
Stainless steel itself resists biofilm formation, but if the bottle is capped and not fully dried between uses, condensation inside can support mold or bacterial growth. This is a maintenance issue, not a material hazard.
Lid and closure materials
HydroJug does not publicly disclose the composition of the lid, gasket, or cap. These components may contain plastics (BPA, phthalates) or rubber that could leach if not specified as BPA-free or food-grade silicone. No specific testing or recalls are on record for this model's closure.
Corrosion pitting from prolonged acidic or salty beverages
Long-term storage of vinegar, lemon juice, or electrolyte drinks in stainless steel can initiate localized corrosion pits, particularly if the steel grade is not high-quality 18/8. HydroJug does not publicly specify the exact alloy grade used in this model.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Heavy metals
Bare stainless steel does not leach lead, cadmium, or chromium into water or beverages under normal storage conditions. No recalls or test reports documenting leaching from this product or category are on record.
Source, FDA ↗Coating degradation and flaking
No interior coating is disclosed for this model, so coating failure and ingestion of coating particles is not applicable. If the product does contain an undisclosed enamel or lining, degradation could occur with impact or thermal shock.
How is this PFAS grade calculated?
The brand's record and disclosure
HydroJug has not publicly disclosed third-party testing, material certifications, or chemical composition statements for this model in widely available sources. The brand maintains no prominent PFAS stance or commitment statement on record. No major recalls or regulatory actions against HydroJug water bottles have been established in public databases. Absence of disclosure does not confirm the presence of hazards, but limits independent verification of manufacturing standards.
How it compares in its category
Uncoated stainless steel water bottles occupy a lower-concern position compared to alternatives with interior enamel, ceramic non-stick coatings, or plastic liners, which can degrade or leach over time. They avoid the durability and coating-degradation risks present in some aluminum or coated-steel designs. Stainless steel bottles typically cost more than plastic but offer longer functional life and lower material-replacement hazard cycles.
If you buy it
Clean the bottle with warm soapy water before first use. Stainless steel tolerates hot liquids and dishwasher cycles without material breakdown. Inspect the interior periodically for corrosion pitting or discoloration; minor surface oxidation is cosmetic, but deep pitting warrants replacement. Do not use abrasive scouring on the interior, as this can create microscopic surface damage that may nucleate localized corrosion over years of use.
What is not known about PFAS in this product?
- Basis
- Model estimate, 78% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- HydroJug has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Traveler 40 oz Stainless Steel Water Bottle?
- 18/8 stainless steel, no interior coating
- The brand calls it PFAS-free, which we have not verified
- Cap or closure contamination
2 hazards checked on this product, all on its full breakdown.
- stainless steel body, foam insulation, stainless steel cap
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- Cap gasket and seal contamination
More portable water bottles 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.