Elevation Wine Tumbler vs Stainless Steel King Travel Mug: which is safer?
THERMOS Stainless Steel King Travel Mug is our pick: better on PFAS and on the overall hazard picture.
OtterBox
Elevation Wine Tumbler
PFAS grade
Good 70/100
Overall grade
Good 59/100
Verdict
Skip
Hazard flags
⚑ 1
Material
stainless steel with vacuum insulation
Confidence
72%
PossibleGasket and seal leachables
Our pick
Thermos
Stainless Steel King Travel Mug
PFAS grade
Excellent 80/100
Overall grade
Good 68/100
Verdict
Buy
Hazard flags
⚑ 3
Material
Stainless steel interior and exterior, plastic lid
Confidence
82%
PossiblePlastic lid polymer degradation
PossibleGasket/seal material composition
PossibleThermal shock stress on seals
Where these two actually differ
- We flag Gasket and seal leachables on the OtterBox and not on the Thermos.
- We flag Plastic lid polymer degradation, Gasket/seal material composition and Thermal shock stress on seals on the Thermos and not on the OtterBox.
- The OtterBox is stainless steel with vacuum insulation where the Thermos is Stainless steel interior and exterior, plastic lid, which is most of the difference in these two grades.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More insulated travel mugs: see the full ranking