Byron 2.0 Stainless Steel Travel Mug Snapseal vs 30oz Stainless Steel Handled Tumbler 2pk Lemon/Blue Stripe: which is safer?

These two grade almost identically. Pick on price and preference; neither has a PFAS edge.

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

Ello

30oz Stainless Steel Handled Tumbler 2pk Lemon/Blue Stripe

PFAS grade

A 95/100

Overall grade

B 83/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Stainless steel, no disclosed coating or treatment

Confidence

82%

PossibleLid or handle material composition

PossibleBacterial growth or biofilm in seams

PossibleNickel sensitization from stainless steel contact

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