Contigo · Insulated Drinkware Tumblers
Contigo Byron 2.0 Stainless Steel Travel Mug Snapseal
Travel mug with lower PFAS concern; stainless steel typically safe.
Stainless steel construction has no known PFAS coating requirements. Contigo does not disclose PFAS status, but material itself carries lower risk than non-stick or water-resistant products.
Shop Contigo on Amazon →Material
Stainless steel, silicone gasket
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Uncoated safe material
Bare, uncoated material (cast iron, stainless, carbon steel, or glass) with no surface treatment to contain PFAS.
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The Byron 2.0 uses food-grade stainless steel (typically 18/8 or similar) as its primary material, which is chemically inert and does not leach metals under normal use. The Snapseal lid incorporates a silicone gasket to create an airtight seal; food-grade silicone is heat-stable and non-reactive with beverages. Unlike ceramic-coated or plastic-lined travel mugs, stainless steel avoids risks from coating degradation or BPA/BPS leaching.
The brand's record and disclosure
Contigo has no widely publicized safety certifications (such as NSF or FDA clearance statements) prominently displayed in marketing materials, and the company has not issued transparency reports on PFAS use in gaskets or manufacturing. The brand maintains a general 'safe for food contact' stance but does not disclose detailed material sourcing or testing protocols. No major product recalls for the Byron line have been issued in available public records.
How it compares in its category
Stainless steel travel mugs are among the safest in the category because they eliminate ceramic glaze hazards (lead/cadmium) and plastic leaching concerns. The silicone gasket is a common choice across brands and generally regarded as low-risk when food-grade. Compared to double-walled plastic or resin-coated alternatives, the Byron 2.0 avoids off-gassing and thermal degradation issues.
If you buy it
Hand-wash the silicone gasket regularly to prevent mold or bacterial biofilm buildup in the seal crevices, especially after hot beverages. Do not expose the gasket to prolonged boiling water (over 100 degrees Celsius repeatedly), as silicone can degrade faster under extreme heat cycling. Replace the gasket annually or if you notice persistent odors, discoloration, or loss of seal integrity. Avoid dishwashers for the gasket to extend its lifespan.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Silicone gasket degradation
Silicone gaskets can develop odor or harbor bacterial growth if not cleaned regularly or stored damp. This is not a material toxicity risk but a hygiene issue requiring maintenance.
Stainless steel leaching
Food-grade stainless steel (18/8) does not leach nickel, chromium, or iron at pH levels of typical beverages (coffee, tea, water). No recalls or documented cases for the Byron 2.0.
Thermal stress cracking
Repeated exposure to extreme temperature cycling (boiling water followed by freezer) can cause hairline cracks in stainless steel over years of use, though this is a durability rather than safety issue.
Lid seal failure and contamination
If the Snapseal mechanism weakens or the gasket deteriorates, the mug may not seal properly, risking spillage and exposure to airborne contaminants if stored open.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
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How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.