16oz Insulated Hot Tumbler vs Byron 2.0 Stainless Steel Travel Mug Snapseal: which is safer?
Contigo Byron 2.0 Stainless Steel Travel Mug Snapseal is our pick: better on PFAS and on the overall hazard picture.
Calpak
16oz Insulated Hot Tumbler
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePlastic interior leaching (BPA/phthalates)
PossibleCoating degradation over time
PossibleMicroplastic shedding from interior liner
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
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