Contigo · Insulated Drink Tumblers
Contigo Autoseal West Loop 2.0 Travel Mug
Lower concern, as no PFAS-prone coatings are identified in typical design.
Travel mug with stainless steel construction and plastic lid. Contigo has not disclosed PFAS use, and the standard design poses lower risk than coated cookware or heavily treated textiles.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel body, plastic lid and components
Lab data
No public lab test
What Contigo Autoseal West Loop 2.0 Travel Mug is made of, ingredients and materials
The Contigo Autoseal West Loop 2.0 uses a stainless steel double-wall body, which is chemically inert and does not leach metals or coating degradation products into beverages across normal use. The lid and internal seal components are plastic (likely polypropylene or similar), which avoids BPA-laden polycarbonate but introduces a small leaching risk if hot liquids exceed the lid's temperature rating or if the lid degrades over years of use. The flip-top mechanism and gaskets are typical injection-molded thermoplastic assemblies.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Plastic lid and seal degradation over time
Repeated hot filling, dishwasher exposure, or extended UV exposure can embrittle the polypropylene or polyethylene components. Micro-fragments or accelerated gasket wear may lead to small plastic shedding into beverages after 2-3 years of heavy use; replacement of the lid assembly mitigates this.
Leaching from plastic gasket or internal seals
If the lid uses certain elastomer formulations (natural or synthetic rubber), prolonged contact with very hot or acidic beverages (coffee, citrus) may slowly extract trace polymeric compounds. Risk is low at typical drinking temperatures (140-160F) but increases if the mug is filled with boiling liquid repeatedly.
Bacterial or mold growth in seal assembly
The flip-top mechanism and silicone gasket create a small crevice where moisture can collect if not dried thoroughly after each wash. Improper cleaning or storage in a closed bag while damp may allow biofilm formation; regular disassembly and air-drying prevents this.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Teflon-type coating or non-stick coatings on internal surfaces
Contigo Autoseal West Loop 2.0 does not appear to use Teflon-type coating-lined or non-stick interior coatings based on product specifications and typical stainless steel construction in this price range. The stainless steel is bare or minimally coated.
Lead
Stainless steel is FDA-approved for food contact and contains no lead or cadmium by regulatory standard. No reports of excess heavy metals in Contigo mugs have been published in consumer databases or recalls.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Contigo has not published detailed chemical disclosure or third-party certifications (e.g., NSF, FDA audits) specific to this model in public databases. The brand maintains silent or general statements on PFAS and does not highlight material safety testing on product pages. No major recalls or contamination incidents linked to this specific model or brand have been reported in public safety databases.
How it compares in its category
Stainless steel travel mugs have lower concern for coating-degradation and leaching risks compared to ceramic-lined or non-stick alternatives. Contigo's design is competitive with similarly priced brands (Hydro Flask, S'well, YETI) in material selection. The main differentiator is durability of the plastic lid assembly; higher-end competitors sometimes offer metal or ceramic-lined options that further reduce plastic contact, but at 2-3x the cost.
If you buy it
Use the mug only within the manufacturer's stated temperature limits (typically 160F/71C for the lid seals; check the product manual). Do not fill with boiling water or place the lid in dishwashers if not explicitly rated, as heat degrades plastic. Inspect the silicone gasket and flip-top hinge annually for cracks or stickiness; replace the lid assembly if visible wear appears or if leaks develop. Rinse after each use and dry completely to prevent any trapped moisture or mold growth in the seal.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Contigo has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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More insulated drink tumblers 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.