27oz Stainless Steel Tumbler vs Stainless Steel Carry Tumbler: which is safer?
Zojirushi Stainless Steel Carry Tumbler is our pick: better on PFAS and on the overall hazard picture.
Zojirushi
27oz Stainless Steel Tumbler
PFAS grade
Excellent 95/100
Overall grade
Excellent 83/100
Verdict
Buy
Hazard flags
⚑ 3
Material
stainless steel with standard plastic lid
Confidence
82%
PossiblePlastic lid leaching (BPA, BPS, or other endocrine disruptors)
PossibleLid degradation and microplastic release
PossibleSeal material contamination or mold growth
Our pick
Zojirushi
Stainless Steel Carry Tumbler
PFAS grade
Excellent 95/100
Overall grade
Excellent 91/100
Verdict
Buy
Hazard flags
⚑ 1
Material
Stainless steel body, no nonstick or special coating mentioned
Confidence
88%
PossibleSeal and gasket degradation
Where these two actually differ
- We flag Plastic lid leaching (BPA, BPS, or other endocrine disruptors), Lid degradation and microplastic release and Seal material contamination or mold growth on the Zojirushi and not on the Zojirushi.
- We flag Seal and gasket degradation on the Zojirushi and not on the Zojirushi.
- The Zojirushi is stainless steel with standard plastic lid where the Zojirushi is Stainless steel body, no nonstick or special coating mentioned, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
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 drink tumblers: see the full ranking