Beacon Vacuum Insulated Stainless Steel Tumbler vs Stainless Steel Travel Mug Zojirushi: which is safer?
Ello Beacon Vacuum Insulated Stainless Steel Tumbler is our pick: better on PFAS and on the overall hazard picture.
Our pick
Ello
Beacon Vacuum Insulated Stainless Steel Tumbler
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleBacterial growth in lid gaskets and seals
PossibleVacuum seal degradation and loss of insulation
Zojirushi
Stainless Steel Travel Mug Zojirushi
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePlastic lid and seal degradation
ReportedBacterial biofilm in lid threads and seals
PossibleThermal shock cracking of double-wall seal
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 drinkware tumblers: see the full ranking