Stainless Steel Carry Tumbler vs Stainless Vacuum Insulated Tumbler: which is safer?
Zojirushi Stainless Steel Carry Tumbler is our pick: better on PFAS and on the overall hazard picture.
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
Zojirushi
Stainless Vacuum Insulated Tumbler
PFAS grade
Excellent 95/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 3
Material
stainless steel exterior, vacuum insulation, plastic interior liner
Confidence
78%
PossiblePlastic interior liner composition and leaching
ReportedBacterial or mold growth in sealed compartments
PossibleLid gasket degradation and replacement availability
Where these two actually differ
- We flag Seal and gasket degradation on the Zojirushi and not on the Zojirushi.
- We flag Plastic interior liner composition and leaching, Bacterial or mold growth in sealed compartments and Lid gasket degradation and replacement availability on the Zojirushi and not on the Zojirushi.
- The Zojirushi is Stainless steel body, no nonstick or special coating mentioned where the Zojirushi is stainless steel exterior, vacuum insulation, plastic interior liner, 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