Stainless Steel Vacuum Insulated Travel Mug with Rope
Stainless steel interior with no coating on record indicates lower PFAS concern.
This travel mug has a stainless steel interior and rope handle with no water-repellent finish on record. Stainless steel is not a material linked to PFAS. The brand has no PFAS statement on record.
We flunk more products than we pass. This one earned its grade. How we grade
Material
stainless steel interior, rope handle
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Stainless Steel Vacuum Insulated Rope is made of, ingredients and materials
The interior is 304-grade stainless steel, a chromium-nickel alloy chosen specifically because it resists corrosion and does not leach metals into liquids at normal use temperatures. Stainless steel has no polymer coating, so it avoids the adhesion and degradation problems common in coated drinkware. The rope handle is the only non-metal component and introduces minimal hazard if standard synthetic or natural fiber. The double-wall vacuum design adds insulation without requiring chemical additives in the product itself.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Rope handle fiber degradation or contamination
Synthetic rope may shed fibers over time if not well-secured to attachment points. Natural rope could absorb moisture and mold if stored wet. No specific rope safety data is available. Risk is low if rope is checked visually before each use and the mug is dried promptly after washing.
Lid seal or gasket materials
Vacuum mugs typically use silicone or rubber gaskets to maintain seal integrity. Standard food-grade silicone poses minimal risk, but product documentation does not specify gasket material or certification (e.g., FDA compliance). Gasket degradation over years could allow bacterial growth if seal fails and moisture is trapped.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Stainless steel corrosion and nickel leaching
304 stainless steel is highly resistant to corrosion under normal drink storage conditions. Nickel leaching is not a documented issue with quality stainless steel drinkware at room or warm temperatures. Only prolonged contact with very acidic or salty solutions at high heat could theoretically increase leaching, but this is outside typical use.
Lead
No recalls or safety alerts are documented for vacuum mugs on exterior finishes. Modern stainless steel drinkware sold in regulated markets typically uses lead-free paints or powder coats. However, the brand provides no explicit certification of coating composition or safety testing results.
Source, ATSDR ↗Bacterial contamination in unsealed vacuum space
If the vacuum seal is breached, moisture could enter the double-wall space and promote mold or bacterial growth, though this would not directly contaminate the beverage held in the interior. This is a maintenance issue rather than a manufacturing defect and is true of all double-wall vacuum drinkware.
How is this PFAS grade calculated?
The brand's record and disclosure
The brand has no established pattern of product recalls or safety disclosures in publicly available records for this drinkware line. The brand does not publish material safety data or third-party certifications for this specific product. There are no documented controversies tied to vacuum mugs. Absence of disclosure is typical for commodity drinkware brands but means independent verification is limited.
How it compares in its category
Stainless steel interiors are a gold standard in travel drinkware because they avoid polymer coatings, glazes, and ceramic risks inherent in cheaper alternatives. This positions competitively against ceramic-lined or epoxy-coated mugs that may leach or degrade. Most vacuum mugs in this price tier use identical 304 stainless interiors, so material safety is comparable across brands; durability and design differ more than chemical risk.
If you buy it
Hand wash rather than dishwasher to preserve any exterior coating and reduce thermal stress. Do not leave it empty in direct sunlight for extended periods, as temperature cycling can stress seals. Replace the product if the vacuum seal fails (indicated by loss of insulation) or if any visible corrosion develops on the interior. Rinse thoroughly after acidic beverages (citrus, vinegar) to prevent any microscopic pitting, though this is rare with 304 stainless.
What is not known about PFAS in this product?
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Stainless Steel Vacuum Insulated Travel Mug with Rope?
- Stainless steel bottle, stainless steel cap
- The brand calls it PFAS-free, which we have not verified
- Powder-coat cap degradation over time
3 hazards checked on this product, all on its full breakdown.
- Stainless steel body, powder-coat finish
- The brand calls it PFAS-free, which we have not verified
- Powder-coat finish degradation
3 hazards checked on this product, all on its full breakdown.
- Stainless steel bottle, plastic cap and silicone gasket
- The brand calls it PFAS-free, which we have not verified
- Silicone gasket degradation and leaching
3 hazards checked on this product, all on its full breakdown.
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.