Contigo · Insulated Drink Tumblers & Travel Mugs
Contigo Superior 2.0 Travel Mug
High risk. Skip until Contigo discloses interior coating composition.
Contigo hasn't revealed what coating lines the interior of this travel mug. You can't reliably assess PFAS risk without knowing the material inside.
The safe swap
Yeti
Rambler Tumbler YETI
80/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
stainless steel with unspecified interior coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Non-stick, chemistry undisclosed
Advertised as non-stick but coating type is not explained.
Category baseline
PFAS exposure happens more often with clothing products.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
PFAS
Stainless steel tumblers commonly use Teflon-type coating or similar Teflon-family coating linings to improve durability. Contigo's refusal to disclose means PFAS presence cannot be ruled out. (PFAS graded separately as 15/100.)
Source: ATSDR ↗Coating degradation and microplastic/particulate release
If the interior coating is polymer-based and becomes scratched or worn, small particles may shed into beverages, especially with acidic or hot liquids. No recalls have been reported, but risk increases with age and abuse.
Off-gassing from coating under heat stress
If the mug is used with boiling water or left in direct sunlight for extended periods, an unknown polymer or epoxy coating could potentially off-gas volatile compounds. Risk depends entirely on the undisclosed coating type.
What’s reassuring
Metallic taste or leaching from stainless steel substrate
Stainless steel (304 or 316 grade, standard for drinkware) does not leach nickel or other metals into cold or room-temperature beverages under normal use. The interior coating is designed to prevent any steel-to-liquid contact.
Lid or seal material toxicity
Contigo travel mugs typically use silicone or thermoplastic rubber seals. No published data links these materials to BPA, phthalates, or other common endocrine disruptors in Contigo products, though the brand does not disclose lid composition.
The full breakdown
What it's made of and why it matters
Contigo Superior 2.0 uses a stainless steel exterior and interior shell, which is chemically inert and durable. The concern lies in the unspecified interior coating applied to the steel, manufacturers of insulated tumblers often use polymer or epoxy liners to improve durability and prevent taste transfer. Without Contigo's disclosure, it is impossible to rule out Teflon-type coating (Teflon) or other fluorinated coatings, which can off-gas harmful fumes if the mug is exposed to high heat or damaged.
The brand's record and disclosure
Contigo has not publicly disclosed the composition of interior coatings on its travel mugs, nor has the brand published PFAS policies or third-party testing results. The company has faced recalls for lid failure and leak issues, but these centered on mechanical design rather than material safety. Contigo's silence on coating chemistry is a red flag in an industry where PFAS-lined mugs remain common.
How it compares in its category
Among insulated tumblers, Contigo holds a mid-market position. Brands like Hydro Flask and S'well have begun disclosing non-PFAS interior coatings; some budget alternatives use uncoated stainless steel (which can transfer metallic taste but eliminates coating hazards). Contigo's refusal to disclose puts it behind transparency leaders but it is not unique in the category.
If you buy it
Avoid exposing the mug to temperatures above 140F (60C) to minimize any risk of coating degradation or off-gassing. Do not microwave. Hand wash only; dishwashers can accelerate coating wear. Inspect the interior regularly for scratches, discoloration, or peeling, which signal coating breakdown. Replace the mug if damage occurs and you cannot verify the coating is PFAS-free.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Contigo has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Insulated Drink Tumblers & Travel Mugs
Yeti
Rambler Tumbler YETI
18/8 stainless steel, no coating
Nickel leaching from stainless steel
Limited concern
Low risk. Bare stainless steel tumbler with no known PFAS risk.
⚠Risky category by default
Contigo
Autoseal West Loop Stainless Steel Travel Mug
stainless steel body, silicone gasket/lid seal
Silicone gasket degradation and bacterial/mold colonization
Limited concern
Low-Medium risk. Stainless steel and silicone have minimal PFAS risk.
⚠Risky category by default
Contigo
Cortland Chill 2.0 Stainless Steel Water Bottle
stainless steel, no reported coating
Gasket and seal degradation
Limited concern
Bacterial growth in inaccessible spaces
Limited concern
Thermal stress and seal failure
Limited concern
Low-Medium risk. Bare stainless steel bottle with no known problematic coatings.
⚠Risky category by default
More insulated drink tumblers & travel mugs grades
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.