Coleman · Insulated Drink Tumblers
Coleman 64 oz Black Stainless Steel Growler
Bare stainless steel, lower PFAS concern.
Coleman's stainless steel growler contains no nonstick or water-resistant coatings that would require PFAS. Standard stainless steel drinkware carries minimal PFAS concern.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel, no surface treatment disclosed
Lab data
No public lab test
What Coleman 64 oz Black Stainless Steel is made of, ingredients and materials
The Coleman 64 oz growler is constructed from stainless steel with no disclosed surface coating or lining. Stainless steel is a stable alloy of iron, chromium, and nickel chosen specifically to resist corrosion and avoid leaching into stored beverages. The uncoated design means there is no ceramic glaze, enamel, or polymer film to degrade or flake over time, eliminating a common failure point in cookware and beverage containers.
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.
Nickel leaching from stainless steel
Stainless steel can release trace nickel when in contact with acidic liquids over extended periods, though levels are typically far below regulatory concern for most users. Individuals with nickel sensitivity may wish to test with brief storage of acidic beverages before prolonged use.
Lid gasket/seal degradation
The growler's lid seal (typically rubber or silicone) will degrade with age, heat cycles, and repeated opening. Once compromised, the seal loses integrity and may harbor bacterial growth or allow spillage; replacement is necessary but not supplied with the product.
Bacterial or mold growth in seams
Like any reusable beverage container, the interior seams, threads, and lid assembly can harbor bacteria or mold if not dried thoroughly after washing. Stainless steel itself resists microbial colonization, but water retention in crevices is a maintenance issue, not a material defect.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Lead
Bare stainless steel has no ceramic glaze or enamel coating, eliminating this hazard class entirely. No recalls or test results indicating contamination are on record.
Source, ATSDR ↗Teflon-type coating or polymer off-gassing
Stainless steel construction has no nonstick or polymer coating; Teflon-type coating fume risk and polymer leaching are not applicable to this product design.
The full breakdown
The brand's record and disclosure
Coleman is a legacy outdoor/camping equipment brand owned by Newell Brands. The company does not publish detailed material safety disclosures or third-party certifications (such as FDA food-contact or NSF marks) for this specific product on publicly available sources. No significant product recalls or contamination incidents specific to Coleman growlers are on record. The brand's silence on PFAS treatment or coating composition is typical for entry-level drinkware but limits transparency.
How it compares in its category
Uncoated stainless steel growlers have lower concern for certain leaching risks because they eliminate polymer coatings (which may leach) and ceramic glazes (which may contain lead or cadmium). This design is functionally equivalent to premium brands like Hydro Flask or Klean Kanteen in terms of material safety, though those brands typically provide more explicit food-safety certifications. The trade-off is that bare stainless steel may require more frequent cleaning to prevent interior staining or odor retention.
If you buy it
Rinse thoroughly before first use and after each use, especially if storing acidic beverages (citrus, wine), which can slightly accelerate minor surface oxidation over years. Do not expose to prolonged high heat (dishwasher extreme cycles) as stainless steel itself is durable, but seals or closures may degrade. Inspect the lid gasket annually for wear; replace if cracked or discolored to maintain seal integrity. The interior will develop harmless surface patina with age and is not a safety concern.
What we don’t know
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Coleman has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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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.