Autoseal West Loop 2.0 Travel Mug 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.

Contigo

Autoseal West Loop 2.0 Travel Mug

PFAS grade

B 85/100

Overall grade

C 73/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Stainless steel body, plastic lid and components

Confidence

72%

PossiblePlastic lid and seal degradation over time

PossibleLeaching from plastic gasket or internal seals

PossibleBacterial or mold growth in seal assembly

Why this gradeBuy

Our pick

Contigo

Byron 2.0 Stainless Steel Travel Mug Snapseal

PFAS grade

A 95/100

Overall grade

B 83/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Stainless steel, silicone gasket

Confidence

78%

PossibleSilicone gasket degradation

PossibleThermal stress cracking

PossibleLid seal failure and contamination

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 drinkware tumblers: see the full ranking