West Loop 2.0 Travel Mug 2-Pack vs Rambler 24 oz Mug with Ceramic Lining: which is safer?
Rambler 24 oz Mug with Ceramic Lining is our pick, better on PFAS and on the overall hazard picture.
Contigo
West Loop 2.0 Travel Mug 2-Pack
PFAS grade
Good 70/100
Overall grade
Good 56/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Stainless steel exterior, plastic interior lid/valve
Confidence
72%
PossiblePlastic lid and valve wear/leaching
ReportedBacterial or mold growth in valve mechanism
Our pick
Yeti
Rambler 24 oz Mug with Ceramic Lining
PFAS grade
Excellent 85/100
Overall grade
Good 73/100
Verdict
Buy
Hazard flags
⚑ 3
Material
stainless steel exterior, ceramic lining interior
Confidence
72%
PossibleCeramic coating degradation over time
PossibleBacterial growth in crevices or damaged coating
PossibleThermal shock or fracture
Where these two actually differ
- We flag Plastic lid and valve wear/leaching and Bacterial or mold growth in valve mechanism on the Contigo and not on the Yeti.
- We flag Ceramic coating degradation over time, Bacterial growth in crevices or damaged coating and Thermal shock or fracture on the Yeti and not on the Contigo.
- The Contigo is Stainless steel exterior, plastic interior lid/valve where the Yeti is stainless steel exterior, ceramic lining interior, which is most of the difference in these two grades.
Both products run through the same public rubric, which covers 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