Byron 2.0 Stainless Steel Travel Mug Snapseal vs Stainless Steel Travel Mug Zojirushi: which is safer?
Contigo Byron 2.0 Stainless Steel Travel Mug Snapseal is our pick: better on PFAS and on the overall hazard picture.
Our pick
Contigo
Byron 2.0 Stainless Steel Travel Mug Snapseal
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleSilicone gasket degradation
PossibleThermal stress cracking
PossibleLid seal failure and contamination
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