The Best Non-Toxic Insulated Drink Tumblers of 2026
143 of the 147 insulated drink tumblers PFAS Authority has graded reach its 70 point pass mark for PFAS and other toxins, 97.3% of the category, as of October 2026, and 4 score below it. The highest graded is Klean Kanteen 20oz TKWide with Café Cap, Tofu at 95 out of 100.
Every grade below is built from published materials, ingredient lists, certifications and brand disclosures, scored on one public rubric and ranked best-graded first. Each score links to the full breakdown of what earned it, and the numbers across the whole dataset are published too.
Are insulated drink tumblers non-toxic?
143 of the 147 insulated drink tumblers we graded clear our screen and 4 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on insulated drink tumblers in this category are microplastics, VOCs and off-gassing, heavy metals, BPA and bisphenols, undisclosed fragrance. The highest graded here is Klean Kanteen 20oz TKWide with Café Cap, Tofu at 95 out of 100.
Quick picks
Best overall
Klean Kanteen 20oz TKWide with Café Cap, TofuHighest PFAS grade in the category
95 Excellent
Brand states its position
Klean Kanteen 16oz Rise TumblerThe brand has published a PFAS statement we can quote
95 Excellent
A second brand to consider
MiiR Climate+ Tumbler 12 ozThe best grade here from a brand other than the winner
85 Excellent
Why Klean Kanteen wins, and what it beats
Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 3 products it beats, so you can see exactly where the 60 points between the top and the bottom of this insulated drink tumblers ranking come from.
The winner
Made of Stainless steel bottle, stainless steel cap.
- +25Category baseline. The starting point for this type of product, before anything specific to this product is counted.
- -10Brand-stated PFAS-free. The brand states this product is PFAS-free. We have not verified the claim.
- -10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.
5risk points in total, which is a grade of 95
What the grade does not fix. Nothing specific to this product adds risk, so what remains is the category baseline that every product here starts from, and our graders recorded 3 other hazards on it. See the full breakdown.
What it beats, and why
What puts it behind. No PFAS disclosure, +15 points. No public statement from the brand about PFAS in this product. The winner carries no such factor.
Made of Stainless steel body, no nonstick or special coating mentioned.
- +25Category baseline
- +15No PFAS disclosure
- -20Bare uncoated material. Recorded as a bare, uncoated material with no surface coating or treatment.
20risk points, a grade of 80
What puts it behind. No PFAS disclosure, +15 points. No public statement from the brand about PFAS in this product. The winner carries no such factor.
Made of borosilicate glass.
- +25Category baseline
- +15No PFAS disclosure
- -10Base material not linked to PFAS
30risk points, a grade of 70
What puts it behind. Unknown / proprietary coating, +25 points. A coating is recorded with no disclosed chemistry. The winner carries no such factor.
Made of stainless steel with unspecified internal coating/sealant.
- +25Category baseline
- +25Unknown / proprietary coating
- +15No PFAS disclosure. No public statement from the brand about PFAS in this product.
65risk points, a grade of 35
No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.
What to watch for in insulated drink tumblers
Beyond the PFAS grade, these are the things our graders recorded on the 147 insulated drink tumblers in this category. We assess from materials, brand statements and published research. We do not lab-test.
- Microplastics
Plastic fragments small enough to shed from a product into food, water or air without anyone seeing it.
Plausible but unconfirmed on 34 more, meaning nobody has ruled it out. EPA
- VOCs and off-gassing
Volatile compounds that evaporate out of a material at room temperature, which is what a new product smell is.
Plausible but unconfirmed on 21 more, meaning nobody has ruled it out. EPA
- Heavy metals
Metals such as antimony, nickel and chromium migrating from a material into what touches it.
Plausible but unconfirmed on 19 more, meaning nobody has ruled it out. ATSDR
- BPA and bisphenols
Chemicals that harden plastic and line metal cans, and the replacements sold as BPA-free.
Plausible but unconfirmed on 17 more, meaning nobody has ruled it out. NIEHS
- Undisclosed fragrance
A single word on a label that can stand for dozens of undeclared ingredients, protected as trade secret.
Plausible but unconfirmed on 2 more, meaning nobody has ruled it out. FDA
The safest insulated drink tumblers we graded, lowest PFAS risk first
- 1
Highest grade here
- 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.
- 2
- 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.
- 3
- 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.
- 4
- 18/8 stainless steel body, likely stainless steel or silicone lid
- The brand calls it PFAS-free, which we have not verified
- Nickel leaching from stainless steel
2 hazards checked on this product, all on its full breakdown.
- 5
- Stainless steel body, plastic cap
- The brand calls it PFAS-free, which we have not verified
- Plastic cap degradation from heat stress
2 hazards checked on this product, all on its full breakdown.
- 6
- Stainless steel body, likely polypropylene or polyester straw lid
- The brand calls it PFAS-free, which we have not verified
- Polypropylene lid and straw thermal stability
2 hazards checked on this product, all on its full breakdown.
- 7
- Stainless steel body, vacuum insulation
- We found no PFAS statement from the brand
- Seal and gasket material degradation
2 hazards checked on this product, all on its full breakdown.
- 8
- Stainless steel tumbler with rubber soft grip
- We found no PFAS statement from the brand
- Rubber grip degradation
2 hazards checked on this product, all on its full breakdown.
Questions people ask about insulated drink tumblers
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.
All the insulated drink tumblers that pass, side by side
Sorted by score. A higher score means lower PFAS risk. Scored against 3 hazards that apply to this category.
| # | Insulated Drink Tumblers | Score | Rating | Made of | Key concern |
|---|---|---|---|---|---|
| 1 | Klean Kanteen 20oz TKWide with Café Cap, Tofu | 95 | Excellent | Stainless steel bottle, stainless steel cap | Powder-coat cap degradation over time |
| 2 | Klean Kanteen 16oz Rise Tumbler | 95 | Excellent | Stainless steel body, powder-coat finish | Powder-coat finish degradation |
| 3 | Klean Kanteen Insulated TKWide Cap | 95 | Excellent | Stainless steel bottle, plastic cap and silicone gasket | Silicone gasket degradation and leaching |
| 4 | Klean Kanteen Rise Tumbler | 95 | Excellent | 18/8 stainless steel body, likely stainless steel or silicone lid | Nickel leaching from stainless steel |
| 5 | Klean Kanteen TKWide Twist Cap Bottle | 95 | Excellent | Stainless steel body, plastic cap | Plastic cap degradation from heat stress |
| 6 | Klean Kanteen 36oz Rise Tumbler with Straw Lid | 95 | Excellent | Stainless steel body, likely polypropylene or polyester straw lid | Polypropylene lid and straw thermal stability |
| 7 | MiiR Climate+ Tumbler 12 oz | 85 | Excellent | Stainless steel body, vacuum insulation | Seal and gasket material degradation |
| 8 | Reduce Cold1 50 oz Soft Grip Tumbler | 85 | Excellent | Stainless steel tumbler with rubber soft grip | Rubber grip degradation |
The verdict on insulated drink tumblers
Klean Kanteen 20oz TKWide with Café Cap, Tofu grades 95 out of 100, the highest here. It is stainless steel bottle, stainless steel cap. The brand calls it PFAS-free, which we have not verified.
Choose Klean Kanteen 16oz Rise Tumbler instead if you want a second option at 95 out of 100, stainless steel body, powder-coat finish.
We hold no price data, so nothing here is a budget recommendation. Grades are model-based assessments from published materials and disclosures, not laboratory tests.
The insulated drink tumblers we would skip
Lowest scoring in this category, worst first, with the reason.
- 35Ember 16 oz Smart TumblerPoor
Unspecified internal coating degradation
- 35Ember Personalized Ember Tumbler - Slate Black / 16 ozPoor
Internal coating leaching or degradation
- 35Ember Mug 2Poor
Proprietary interior coating leaching (unknown chemistry)
What we check on insulated drink tumblers
- BPA & bisphenols. Plastic-hardening chemicals linked to hormone disruption. FDA
- Phthalates. Plastic softeners studied for endocrine effects. ATSDR
- Microplastics. Tiny plastic particles that shed from products into food and water. EPA
Full point-by-point rubric on the methodology page.
The insulated drink tumblers brands we found no PFAS statement from
We found no PFAS statement from 18 of the brands here. That is our research, not proof a brand has never said anything, and it is not evidence of harm. It is why none of them score well on disclosure.
Anchor, Arctic Zone, CUPKIN, CamelBak, Corkcicle, Cupture, Elanze Designs, Ello, Ember, Frost Buddy, HydroJug, Igloo.
The brands that have published something, and what each of them actually said, are in our record of what every brand has said about PFAS.
Common questions about PFAS in insulated drink tumblers
Are insulated drink tumblers PFAS free?
143 of the 147 insulated drink tumblers PFAS Authority has graded reach its 70 point pass mark for PFAS and other toxins, 97.3% of the category, as of October 2026, and 4 score below it. The highest graded is Klean Kanteen 20oz TKWide with Café Cap, Tofu at 95 out of 100. The lowest graded is Ember 16 oz Smart Tumbler at 35 out of 100.
Are insulated drink tumblers non-toxic?
143 of the 147 insulated drink tumblers we graded clear our screen and 4 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on insulated drink tumblers in this category are microplastics, VOCs and off-gassing, heavy metals, BPA and bisphenols, undisclosed fragrance. The highest graded here is Klean Kanteen 20oz TKWide with Café Cap, Tofu at 95 out of 100.
Which are the safest insulated drink tumblers to buy?
On our grades, Klean Kanteen 20oz TKWide with Café Cap, Tofu at 95 out of 100, which we band as Excellent. Then Klean Kanteen 16oz Rise Tumbler at 95. These are model-based assessments from published materials, ingredient lists, certifications and disclosures, not laboratory tests, so treat them as the lowest risk we can evidence rather than a safety guarantee.
Which insulated drink tumblers grade best for PFAS?
Klean Kanteen 20oz TKWide with Café Cap, Tofu, at 95 out of 100, which we band as Excellent. It is stainless steel bottle, stainless steel cap. The runner up is Klean Kanteen 16oz Rise Tumbler at 95.
Which insulated drink tumblers should I avoid?
The three lowest scoring we hold are Ember 16 oz Smart Tumbler at 35, Ember Personalized Ember Tumbler - Slate Black / 16 oz at 35, Ember Mug 2 at 35. The problem with the first is that internal coating composition and PFAS status unknown from available information.
How can you tell if insulated drink tumblers contain PFAS?
In this category we check for BPA & bisphenols, phthalates, microplastics. Plastic-hardening chemicals linked to hormone disruption. Language like stain resistant, water repellent or easy release usually means fluorinated chemistry even when PFAS is never printed on the box.
Which insulated drink tumblers brands have not published a PFAS statement?
We found no PFAS statement from 18 of the brands we scored in this category, including Anchor, Arctic Zone, CUPKIN, CamelBak, Corkcicle, Cupture. That is what our research turned up, not proof a brand has never said anything, and a missing statement is not evidence of harm. It is the reason those brands cannot score well on disclosure.
Do you lab test insulated drink tumblers?
No. We score from published ingredient lists, materials, certifications, disclosures and third party lab results where they exist. Where a product has been independently tested we use that result and say so.
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Does a particular brand of insulated drink tumblers have PFAS?
Brands we grade across the catalogue
Everything we have scored from these brands, not just insulated drink tumblers.
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