Stanley · Insulated Drink Tumblers & Travel Mugs
Stanley Quencher H2.0 Fluted Tumbler
Lower concern; bare stainless steel tumbler with no known PFAS-risk coatings.
Stanley H2.0 is stainless steel with no documented nonstick or water-resistant coating. No PFAS disclosure needed for bare metal construction.
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, no known 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 Quencher H2.0 is constructed from food-grade stainless steel (typically 18/8 or similar austenitic alloys) with no ceramic, enamel, or polymer coatings. Bare stainless steel does not leach lead, cadmium, or aluminum into beverages under normal use. The "fluted" design refers to the exterior ridged pattern, which is part of the steel itself, not an applied coating that can degrade.
The brand's record and disclosure
Stanley has a long history in food-contact stainless steel goods and maintains FDA compliance for their drinkware line. The company has not published detailed PFAS statements for this product category. No recalls or widespread safety controversies specific to the Quencher H2.0 tumbler are on record. Material sourcing and manufacturing specifics are not publicly detailed beyond standard food-contact claims.
How it compares in its category
Among reusable tumblers, bare stainless steel avoids hazards present in coated alternatives (non-stick degradation, ceramic glaze contaminants) and ceramic vessels (glaze leaching risk). It sits in the lower-hazard tier of the drinkware category. Cost and performance are comparable to competitors like Hydro Flask and YETI, though Stanley's entry-level positioning reflects simpler manufacturing that reduces process contamination risk.
If you buy it
Wash by hand or dishwasher without concern for coating damage. Do not microwave (metal hazard). Stainless steel does not degrade meaningfully from hot or cold liquids at normal temperatures. Replace only if the vessel dents severely or the seal fails; the steel itself does not deteriorate. Inspect the lid gasket periodically for mold or biofilm, especially if stored damp.
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.”
Coating degradation and leaching
No coating is present on this tumbler. The fluted pattern is integral to the stainless steel body, eliminating risk of enamel, ceramic, or polymer shedding.
Aluminum leaching
This tumbler is stainless steel, not aluminum. No aluminum-based core or exterior is involved in this product design.
Teflon-type coating fume inhalation (non-stick coating)
No non-stick or Teflon-type coating is used on the Stanley Quencher. The surface is bare stainless steel.
Bacterial or mold growth in seals and crevices
The lid gasket and the junction between the tumbler body and base can retain moisture and harbor mold if not dried thoroughly after washing. This is a maintenance issue, not a manufacturing defect, and is common to all reusable drinkware with seals.
Lead or cadmium in glazes or enamels
Stainless steel construction precludes ceramic or enamel coatings. No glaze-based hazard pathway exists for this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% 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.