Stanley · Insulated Drink Tumblers & Travel Mugs
Stanley The Textured Everyday Tumbler
Likely low PFAS risk. No coating suggests minimal concern.
Stanley's tumbler is primarily stainless steel with plastic lining. No nonstick coating or water-resistant treatment typical of PFAS sources identified.
The safe swap
Yeti
Rambler Tumbler YETI
80/100 safety
Same rubric that flunked this product. The swap earned its B.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Stainless steel exterior, plastic interior with textured coating
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
cookware 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 Stanley Textured Everyday Tumbler uses a stainless steel outer shell (food-grade and corrosion-resistant) paired with a plastic interior liner and textured coating. The plastic interior is the primary contact surface for beverages; if it is polypropylene or similar base resin, leaching risk is low under normal cold-to-warm use. The textured coating is a surface treatment applied to the plastic; if it degrades over time or with heavy washing, it could shed microparticles, though this is not documented as a widespread issue with this product line.
The brand's record and disclosure
Stanley has not made a public stance on PFAS in drinkware and does not provide detailed material certifications or third-party test reports for this tumbler. The brand is known for durable outdoor products and has generally avoided major food-contact recalls, but transparency on proprietary coating chemistry is limited. No established safety controversies specific to the Everyday Tumbler line are on record.
How it compares in its category
This tumbler sits in the mid-range insulated drinkware market. It avoids ceramic or enamel coatings (which carry lead/cadmium concerns), making it safer than some vintage or budget enamelware alternatives. Compared to full stainless steel interiors (like higher-end Stanley or Hydro Flask models), the plastic liner slightly increases microplastic or coating-degradation risk, but the risk remains low under normal use. It does not use Teflon-type coating (Teflon) liners, so fume risk from overheating is not applicable.
If you buy it
Use for cold or warm beverages only; avoid boiling water or prolonged exposure above 50-60°C to minimize any plastic degradation. Hand wash or use gentle dishwasher cycles to preserve the textured coating; abrasive scrubbing may accelerate wear. Replace if the interior coating flakes visibly, though durability data for this specific model are not widely published. Do not leave standing with acidic beverages (citrus, vinegar) for extended periods, as this can stress plastic over time.
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.”
Plastic interior coating degradation
The textured coating on the plastic liner may wear or shed microparticles with aggressive cleaning or prolonged use, though no recall or widespread complaint has been documented for this model. Risk is low under normal care.
Plastic leaching (base resin)
Stanley does not disclose the specific plastic resin; if polypropylene or similar food-grade plastic, leaching of BPA or phthalates is not expected under typical beverage use at room to warm temperatures.
Microplastic migration
If the interior coating degrades (scratches, peels), small plastic particles could enter beverages, though this is not an established issue with this product and depends on user care and longevity of the coating.
Aluminum leaching
The exterior is stainless steel, not aluminum, so aluminum leaching is not a concern. The plastic interior is not in direct contact with external metal.
Metal corrosion or off-gassing
Stainless steel (typically 18/8 or similar grades) is chemically inert and does not off-gas or leach heavy metals into beverages under normal use.
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.
Safer alternatives in Insulated Drink Tumblers & Travel Mugs
Yeti
Rambler Tumbler YETI
18/8 stainless steel, no coating
Lower concern. Bare stainless steel tumbler, no known PFAS risk.
⚠Risky category by default
OtterBox
Elevation 20 Tumbler
Stainless steel tumbler with powder coat or polyester exterior
Lower PFAS concern; stainless steel construction poses minimal risk.
⚠Risky category by default
Stanley
Stanley Quencher H2.0 Flowstate TUMBLER
Stainless steel body, plastic lid and base
Lower PFAS concern. Stainless steel body poses minimal risk.
⚠Risky category by default
More insulated drink tumblers & travel mugs 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.