Rambler 24 oz Mug with Ceramic Lining vs Rambler 12 oz Travel Bottle: which is safer?
Rambler 24 oz Mug with Ceramic Lining is our pick, better on PFAS and on the overall hazard picture.
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
Yeti
Rambler 12 oz Travel Bottle
PFAS grade
Good 70/100
Overall grade
Good 59/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Stainless steel interior, vacuum insulated, plastic/rubber components
Confidence
72%
PossiblePlastic/rubber seal degradation and bacterial growth
PossibleBPA or phthalates in plastic lid
Where these two actually differ
- 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 Yeti.
- We flag Plastic/rubber seal degradation and bacterial growth and BPA or phthalates in plastic lid on the Yeti and not on the Yeti.
- The Yeti is stainless steel exterior, ceramic lining interior where the Yeti is Stainless steel interior, vacuum insulated, plastic/rubber components, 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