Recycled Stainless Steel Explorer 24oz Green Jasper vs Rambler 24 oz Mug with Ceramic Lining: which is safer?
Rambler 24 oz Mug with Ceramic Lining edges it on pure PFAS risk, but S'well Recycled Stainless Steel Explorer 24oz Green Jasper wins overall once other hazards are counted.
Our pick
S'well
Recycled Stainless Steel Explorer 24oz Green Jasper
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleBacterial growth in seams or caps
Yeti
Rambler 24 oz Mug with Ceramic Lining
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCeramic coating degradation over time
PossibleBacterial growth in crevices or damaged coating
PossibleThermal shock or fracture
Where these two actually differ
- We flag Bacterial growth in seams or caps on the S'well 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 S'well.
- The S'well is Recycled stainless steel, no coating disclosed where the Yeti is stainless steel exterior, ceramic lining interior, which is most of the difference in these two grades.
- These two are 5 points apart, close enough that price and fit should decide it rather than our grade.
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 →
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