16oz Insulated Hot Tumbler
Low risk. Stainless steel construction carries no known PFAS concern.
This tumbler uses stainless steel and insulation foam without documented PFAS treatments. The brand discloses no coatings or special finishing.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel exterior, plastic/silicone interior
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
What 16oz Insulated Hot Tumbler is made of, ingredients and materials
This tumbler combines a stainless steel exterior (inert, durable, minimal leaching risk) with a plastic or silicone interior liner. Stainless steel does not leach nickel or other metals under normal beverage storage conditions. The interior material is the relevant exposure point, if silicone, it is generally stable and non-leaching; if plastic (likely polypropylene or similar), the risk depends on whether it contacts hot liquids and the polymer's thermal stability. Insulated designs typically have air gaps rather than direct contact between contents and exterior metal.
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.
BPA & bisphenols
If interior is polycarbonate or other commodity plastic rather than polypropylene, and if exposed to sustained heat or acidic contents, minor leaching is possible. No specific test results on record for this model. Silicone interior would carry none_known risk.
Source, FDA ↗Coating degradation over time
Insulated tumbler seals and interior linings can separate or crack with age and repeated thermal cycling. This is a durability issue rather than acute toxicity but can allow stainless steel exposure or microleakage. Expected service life is typically 2-3 years with moderate use.
Microplastic shedding from interior liner
Plastic liners subject to scratching or thermal stress may shed microscopic particles. No data specific to this model. Silicone lining would mitigate this risk; polymer composition is not publicly specified by brand.
Mold or bacterial growth in seal/lid
Insulated tumblers with narrow necks and silicone or rubber gaskets are prone to trapped moisture and biofilm if not dried thoroughly. This is a hygiene rather than chemical hazard but affects reuse considerations.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Nickel leaching from stainless steel
Standard 18/8 stainless steel (austenitic grade) does not leach nickel under normal beverage storage. Risk only arises if tumbler is damaged, corroded, or made from low-grade ferrous metal mislabeled as stainless. No recalls or reports for this product.
How is this PFAS grade calculated?
The brand's record and disclosure
The brand is a luggage and travel accessories brand with limited public disclosure on material sourcing or chemical safety testing for drinkware. No major recalls or safety controversies on record for this product line. The brand does not advertise third-party certifications (e.g., BPA-free claims, FDA compliance statements) prominently, which is typical for mid-market travel goods but leaves composition transparency gaps. Silent stance on PFAS is consistent with industry norm for non-premium cookware/drinkware brands.
How it compares in its category
Insulated tumblers range widely in hazard profile. Stainless steel construction presents lower concern than aluminum-lined or unlined plastic alternatives, which can leach or degrade. The brand's design avoids Teflon-type coating coatings (common in premium thermal mugs, which carry fume risk) and ceramic liners (which may contain lead in glazes if sourced from regions with weak standards). Price point suggests this is a functional travel product rather than a high-end or heavily treated variant, reducing chemical risk overall.
If you buy it
Do not fill with liquids hotter than 140°F if the interior is plastic; silicone is more heat-tolerant up to 200°F. Hand-wash and air-dry to avoid degradation of interior polymers in dishwashers. Inspect the interior lining annually for cracks, discoloration, or odor changes that signal wear; replace if compromised. Avoid prolonged storage of acidic beverages (citrus, vinegar) which may accelerate minor leaching, though stainless steel itself resists this.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% 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 16oz Insulated Hot Tumbler?
- 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.