Ello · Insulated Drink Tumblers
Ello 30oz Stainless Steel Handled Tumbler 2pk Lemon/Blue Stripe
Low risk. Bare stainless steel tumbler with no special coatings disclosed.
Stainless steel tumblers have no inherent PFAS risk from base material. Ello makes no PFAS claims, but bare metal construction typically avoids fluorinated coatings.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel, no disclosed coating or treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Ello 30oz Stainless Steel Handled Tumbler is made of, ingredients and materials
This tumbler is constructed from stainless steel, a corrosion-resistant iron-chromium alloy that does not require protective coatings or linings. Unlike ceramic or non-stick alternatives, bare stainless steel does not degrade into the beverage and poses negligible leaching risk under normal use. The handle and lid components are not specified in publicly available product details, but stainless steel hardware typically carries minimal contamination concern.
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.
Lid or handle material composition
The tumbler's lid and handle materials are not publicly disclosed. If these components contain plastic (e.g., polypropylene or silicone) or rubber, they could leach or off-gas under hot-liquid or dishwasher conditions, though this is not typical for food-grade alternatives used by this brand.
Bacterial growth or biofilm in seams
Like all reusable tumblers with joined or seamed construction, this product can harbor bacteria if not thoroughly dried or if seams trap moisture. This is a maintenance issue, not a material defect, and is mitigated by proper hand-washing and air drying.
Nickel sensitization from stainless steel contact
Stainless steel typically contains 8-12 percent nickel. Individuals with nickel allergy may experience skin irritation from prolonged contact with the handle. This risk is individual, not product-specific, but should be considered by nickel-sensitive users.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Chromium leaching from stainless steel
Bare stainless steel in neutral pH or acidic beverage conditions (coffee, juice) does not leach chromium at detectable levels under normal use. No incidents of chromium contamination from Ello tumblers have been reported in public safety databases.
Surface degradation or rust over time
Food-grade stainless steel (usually 304 or 316 alloy) resists corrosion and rust under normal beverage use. No widespread reports of premature rust or pitting in Ello tumbler products are documented, suggesting adequate material quality control.
The full breakdown
The brand's record and disclosure
Ello is a consumer drinkware brand owned by Smash Goods. The company does not publish detailed material safety documentation or third-party certifications (e.g., FDA food-contact verification, lead testing) on its website or product pages. No recalls or reported contamination incidents for this specific tumbler model have been documented in FDA or CPSC databases. The brand's silence on PFAS and heavy metals testing reflects industry-standard lack of transparency rather than confirmed use of hazardous substances.
How it compares in its category
Stainless steel tumblers have lower concern for coating degradation, off-gassing, or BPA compared to some other reusable drinkware options. They compare favorably to plastic tumblers (potential BPA/phthalates if heated) and ceramic/enamel alternatives (lead or cadmium in glazes if quality-control is poor). Price and brand reputation place this product in the mid-market tier; comparable unbranded stainless tumblers carry similar material safety profiles.
If you buy it
Hand-wash or use a dishwasher; stainless steel is durable and tolerates both. Avoid abrasive scrubbers that can scratch the surface, though minor surface marks do not compromise safety. Replace the lid gasket or seals if they crack or degrade, as these contact the beverage. For hot liquids, verify the handle does not conduct excessive heat by checking the lid design; most stainless tumblers with plastic or rubber handles perform adequately for this task.
What we don’t know
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Ello has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Insulated Drink Tumblers
Klean Kanteen
20oz TKWide with Café Cap, Tofu
- 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. See all of them.
Klean Kanteen
16oz Rise Tumbler
- 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. See all of them.
Klean Kanteen
Insulated TKWide Cap
- 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. See all of them.
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.