Coleman · Insulated Travel Drinkware
Coleman Brew Insulated Stainless Steel Tumbler
Lower concern. Stainless steel tumbler unlikely PFAS source.
Coleman's stainless steel tumbler is a bare metal drinkware product with no known coating or treatment that typically contains PFAS. No lab data or brand disclosure available, but material composition suggests minimal PFAS risk.
Shop Coleman on Amazon →Material
Stainless steel body, insulated double-wall construction
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The Coleman Brew tumbler uses 18/8 food-grade stainless steel for the outer and inner walls, with an insulating vacuum or foam layer between them. Stainless steel is chemically inert at normal use temperatures and does not leach metals into beverages under typical conditions. The lid and any rubber seals are the only non-metal components; these should be checked for degradation over time but pose minimal risk if kept clean and dry.
The brand's record and disclosure
Coleman does not publicly disclose detailed material sourcing or third-party safety testing for this specific tumbler model. The brand has no documented product recalls or safety controversies tied to their drinkware. Coleman is a legacy outdoor/recreational brand with no known involvement in hazardous coating or polymer scandals, though transparency on PFAS use in manufacturing remains absent.
How it compares in its category
Stainless steel tumblers are among the safest drinkware options, avoiding the leaching risks of some ceramics and coatings or the microplastic concerns of some plastics. Coleman's double-wall design is standard in this category and does not introduce unusual chemical risks. Price and durability sit mid-range; glass insulated tumblers offer slightly lower material complexity but are breakage-prone, while some cheaper alternatives use lower-grade steel or epoxy linings.
If you buy it
Hand-wash or use the top rack of a dishwasher to extend seal life and avoid high-temperature stress on gaskets. Avoid extended storage of acidic or heavily chlorinated liquids, which can accelerate minor staining over years. Inspect rubber gaskets annually for cracks or odors; replace if degraded. Keep the lid dry between uses to prevent mold growth in the seal mechanism.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Rubber gasket and seal degradation
Silicone or elastomer seals in the lid can degrade with heat, UV, and repeated washing, potentially allowing bacterial growth or developing odors. No specific Coleman recalls on this issue, but standard wear item replacement every 12-24 months is prudent.
Stainless steel minor leaching under extreme conditions
18/8 stainless steel is food-safe and does not leach under normal use. Pitting corrosion is extremely unlikely in fresh water or common beverages at room temperature and is not documented as a consumer concern for this product.
Coating or finish chemicals in manufacturing
No reports of off-gassing, coating peeling, or chemical residue from Coleman tumblers. Stainless steel does not require a functional coating to resist corrosion, minimizing this risk relative to enameled cookware.
Lid material or paint concerns
Lids are typically plastic (polypropylene or similar) or painted metal; Coleman does not publicly disclose lid material composition. No established safety alerts or recalls for Coleman drinkware lids exist in public records.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
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More insulated travel drinkware 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.