Rambler 24 oz Mug with Ceramic Lining vs Rambler Tumbler YETI: 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

Rambler Tumbler YETI

Yeti

Rambler Tumbler YETI

PFAS grade

Good 70/100

Overall grade

Good 66/100

Verdict

Buy

Hazard flags

⚑ 1

Material

18/8 stainless steel, no coating

Confidence

82%

PossibleNickel leaching from stainless steel

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 Nickel leaching from stainless steel on the Yeti and not on the Yeti.
  • The Yeti is stainless steel exterior, ceramic lining interior where the Yeti is 18/8 stainless steel, no coating, 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