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
A 95/100
Overall grade
B 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
A 95/100
Overall grade
A 91/100
Verdict
Buy
Hazard flags
⚑ 1
Material
Stainless steel body, no nonstick or special coating mentioned
Confidence
88%
PossibleSeal and gasket degradation
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