Stainless Tumbler vs Stainless Vacuum Insulated Tumbler: which is safer?

Zojirushi Stainless Tumbler is our pick: better on PFAS and on the overall hazard picture.

Our pick

Zojirushi

Stainless Tumbler

PFAS grade

A 95/100

Overall grade

B 87/100

Verdict

Buy

Hazard flags

⚑ 2

Material

stainless steel body, no reported coating

Confidence

78%

PossibleSeal/gasket degradation and microbial growth

PossibleNickel sensitivity or leaching

Why this gradeBuy

Zojirushi

Stainless Vacuum Insulated Tumbler

PFAS grade

A 95/100

Overall grade

C 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

Why this gradeBuy

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