Do Stanley insulated travel mugs have PFAS?
Stanley insulated travel mugs average 70 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Stanley insulated travel mugs graded as of October 2026, level with the 70 out of 100 median for the 9 other insulated travel mugs brands graded alongside it.
Stanley insulated travel mugs average Good on our four-band scale. 7 of the 7 we graded are worth buying. That is above 28% of the insulated travel mugs brands we grade.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
What Stanley says and does about PFAS
Stanley 1913 says on its FAQ that FDA accredited third party labs validate its products against requirements including PFOS. That is a claim about one PFAS compound and not a range wide PFAS position, so we found no PFAS policy from Stanley beyond it. Stanley faced lead related class actions, which are not PFAS matters, and we found no PFAS lab test or PFAS lawsuit naming Stanley.
- Brand statementStanley 1913 says third party labs verify its products against strict guidelines including PFOS, a single PFAS compound, and it does not state a range wide PFAS position. Stanley 1913 FAQ (EU site) ↗
Sources checked September 29, 2026. A brand statement is the company’s own claim, which we report but have not verified. Our grades are model-based estimates, not lab tests.
Stanley insulated travel mugs worth buying Good or better, best-graded first
Stanley
Everyday Tumbler
- stainless steel, vacuum insulated
- Silicone gasket and lid degradation, Silicone seals and gaskets on the removable lid can crack, discolor, or…
2 hazards checked on this product. See all of them.
Stanley
Quencher H2.0 Fluted Tumbler
- stainless steel, no known coating
- Bacterial or mold growth in seals and crevices, The lid gasket and the junction between the tumbler body and…
Stanley
Quencher H2.0 Flowstate Tumbler
- Stainless steel body, plastic lid and base
- Plastic lid/base composition uncertainty, Stanley does not disclose whether the lid and base are BPA-free…
3 hazards checked on this product. See all of them.
Stanley
IceFlow 2.0 Flip Straw Tumbler
- Stainless steel tumbler, plastic flip straw lid
- BPA & bisphenols, Plastic components in contact with beverages carry low but nonzero risk if material…
3 hazards checked on this product. See all of them.
Stanley
Quencher Luxe FlowState Tumbler
- Stainless steel tumbler with plastic lid
- Plastic lid degradation and microplastic release with heat exposure, Hot beverage contact can accelerate…
2 hazards checked on this product. See all of them.
Stanley
The IceFlow Fast Flow Tumbler
- Stainless steel vacuum insulated walls, plastic lid and base
- Plastic lid and base thermal stability, Resin type is not disclosed by Stanley; unknown plastic may leach…
3 hazards checked on this product. See all of them.
Stanley
The Textured Everyday Tumbler
- Stainless steel exterior, plastic interior with textured coating
- Plastic interior coating degradation, The textured coating on the plastic liner may wear or shed…
2 hazards checked on this product. See all of them.
Better insulated travel mugs from other brands
Graded higher than the Stanley average of 70.
Owala
FreeSip Sway Stainless Steel
- Stainless steel body, no interior coating disclosed
- Silicone and plastic lid/valve leachables
3 hazards checked on this product. See all of them.
Owala
Stainless Steel Straw Tumbler Route 66
- Stainless steel tumbler, bare uncoated
- Coating degradation and microplastic shedding from exterior print
3 hazards checked on this product. See all of them.
Thermos
18 oz. Icon Vacuum Insulated Stainless Steel Mug
- stainless steel exterior, vacuum insulation, stainless steel interior
- We found no PFAS statement from the brand
- Nickel leaching from stainless steel
3 hazards checked on this product. See all of them.
The same question, asked of the other insulated travel mugs brands
Best average grade first. Stanley averages 70.
See every Stanley product we grade on the Stanley brand page, or the full insulated travel mugs ranking.