Ozark Trail · Insulated Drink Tumblers
Ozark Trail 32 oz Insulated Stainless Steel Tumbler
Lower PFAS concern. Bare stainless steel beverage container.
Ozark Trail stainless steel tumblers are bare metal with plastic lids. No known PFAS treatments coat the steel itself, though plastic components remain unverified.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel tumbler with plastic lid
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Ozark Trail 32 oz Insulated Stainless is made of, ingredients and materials
The tumbler body is food-grade stainless steel (typically 18/8 or 304 grade), which is chemically inert and does not leach metals into beverages under normal use. The lid is plastic, likely polypropylene (PP) or a similar commodity plastic, which becomes the primary material-contact risk. Stainless steel's passive oxide layer means it is not a material linked to PFAS in beverage containers.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
BPA & bisphenols
The lid material is not formally disclosed by Ozark Trail. If polypropylene, the risk is minimal; if any polycarbonate was used (unlikely in this price tier), BPA exposure becomes possible with hot liquids. Without product documentation, actual resin type cannot be confirmed.
Source, FDA ↗Formaldehyde / VOCs
The bond between the steel walls and the plastic lid or gasket may involve adhesives. New tumblers occasionally emit faint chemical odor in the first use or two. This typically dissipates within days and poses low ongoing risk, but sensitive individuals should air out the lid before first use.
Source, ATSDR ↗Bacterial growth in the seal or gasket
If the lid gasket or threads are not cleaned thoroughly, standing water can harbor bacteria, especially if the tumbler sits unused for days. This is a hygiene issue rather than a material hazard, but proper maintenance is essential.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Stainless steel leaching (nickel, chromium)
Food-grade stainless steel (304/18-8) is passivated and does not leach nickel or chromium into cold or warm beverages under normal conditions. Acidic liquids (lemon juice, vinegar) can theoretically increase microscopic leaching, but documented cases in beverage tumblers are absent.
Thermal conductivity at lid (burn risk if overheated)
Stainless steel is an excellent conductor; the lid region can become warm if the tumbler holds very hot liquid. This is not a material defect but a design property. Use care when handling after filling with boiling liquid.
The full breakdown
The brand's record and disclosure
Ozark Trail is Walmart's in-house outdoor brand with minimal public safety disclosures or third-party certifications on file. The company does not publish material sourcing statements or chemical transparency reports. No recalls specific to this tumbler model are documented in FDA or CPSC databases. The brand's silence on materials and testing is typical for mass-market outdoor goods but limits independent verification.
How it compares in its category
Insulated stainless steel tumblers have lower concern than some alternatives because the inner and outer steel walls isolate contents from coatings or adhesives in the vacuum seal. This design presents lower concern than ceramic with glazes, non-stick cookware with Teflon-type coating, or single-wall plastics. Competitor products from Yeti, Hydro Flask, and RTIC use identical or very similar construction, so Ozark Trail's safety profile is standard for the category.
If you buy it
Hand wash the lid in warm soapy water after each use; do not run it through a dishwasher, as high heat or detergents can degrade plastic over time. Inspect the plastic lid periodically for cracks, clouding, or odor, and replace it if visible wear appears. Do not fill with boiling liquids immediately; let hot beverages cool slightly to reduce thermal stress on the seal. The stainless steel body itself will not degrade and requires no special care beyond rinsing.
What we don’t know
- Basis
- Model estimate, 75% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Ozark Trail has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Insulated Drink Tumblers
Klean Kanteen
20oz TKWide with Café Cap, Tofu
- Stainless steel bottle, stainless steel cap
- The brand calls it PFAS-free, which we have not verified
- Powder-coat cap degradation over time
3 hazards checked on this product. See all of them.
Klean Kanteen
16oz Rise Tumbler
- Stainless steel body, powder-coat finish
- The brand calls it PFAS-free, which we have not verified
- Powder-coat finish degradation
3 hazards checked on this product. See all of them.
Klean Kanteen
Insulated TKWide Cap
- Stainless steel bottle, plastic cap and silicone gasket
- The brand calls it PFAS-free, which we have not verified
- Silicone gasket degradation and leaching
3 hazards checked on this product. See all of them.
More insulated drink tumblers 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.