Non-Toxic Insulated Travel Mugs, ranked by PFAS grade
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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 68 insulated travel mugs PFAS Authority has graded reach its 70 point pass mark for PFAS and other toxins, as of October 2026. The highest graded is Yeti Rambler 24 oz Mug with Ceramic Lining at 85 out of 100.
The full ranking is below, best-graded first, with every score linking to the evidence behind it.
Are insulated travel mugs safe?
68 of the 68 insulated travel mugs we graded come back low-concern on our screen and 0 do not. Our grades are model-based assessments built from published materials, ingredient lists, certifications and brand disclosures, not laboratory tests, so they say what we can evidence rather than that anything is safe.
Best graded insulated travel mugs here
- 1Yeti Rambler 24 oz Mug with Ceramic Lining 85 out of 100
- 2Reduce Hot1 Travel Mug 85 out of 100
- 3Owala FreeSip Sway Stainless Steel 80 out of 100
Start here
The best non-toxic insulated travel mugs, ranked by grade
Buyer’s guide
What to look for in insulated travel mugs, and which brands grade best and worst
Insulated Travel Mugs, ranked.
The quickest read, what to skip and the top-graded picks worth buying instead.
Contigo
Superior 2.0 Travel Mug
No coating described, and no PFAS statement from the brand.
Owala
FreeSip Sway Stainless Steel
Bare stainless steel water bottle presents lower PFAS concern.
Yeti
Rambler 24 oz Mug with Ceramic Lining
Lower PFAS concern; ceramic lining is not associated with PFAS.
Why Yeti Rambler 24 oz Mug with Ceramic Lining 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 1 product it beats, so you can see exactly where the 5 points between the top and the bottom of this insulated travel mugs ranking come from.
The winner
Made of stainless steel exterior, ceramic lining interior.
- +15No PFAS disclosure. No public statement from the brand about PFAS in this product.
- +10Category baseline. The starting point for this type of product, before anything specific to this product is counted.
- -10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.
15risk points in total, which is a grade of 85
What the grade does not fix. It still carries one risk factor, No PFAS disclosure, and our graders recorded 3 other hazards on it. See the full breakdown.
What it beats, and why
What puts it behind. The winner earns -10 points for Base material not linked to PFAS. We found nothing comparable published for this product.
Made of Stainless steel body, no interior coating disclosed.
- +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
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.
Which insulated travel mugs are PFAS-free? Good or Excellent, best-graded first
- stainless steel exterior, ceramic lining interior
- Ceramic coating degradation over time
3 hazards checked on this product, all on its full breakdown.
- Stainless steel body, plastic lid
- We found no PFAS statement from the brand
- Plastic lid polymer identity and leaching potential
3 hazards checked on this product, all on its full breakdown.
- Stainless steel body, no interior coating disclosed
- Silicone and plastic lid/valve leachables
3 hazards checked on this product, all on its full breakdown.
- Stainless steel tumbler, bare uncoated
- Coating degradation and microplastic shedding from exterior print
3 hazards checked on this product, all on its full breakdown.
- stainless steel exterior, vacuum insulation, stainless steel interior
- We found no PFAS statement from the brand
- Nickel leaching from stainless steel
3 hazards checked on this product, all on its full breakdown.
- Stainless steel (uncoated)
- We found no PFAS statement from the brand
- Bacterial growth in storage
- stainless steel, no stated coating
- We found no PFAS statement from the brand
- Seam or lid leachables
2 hazards checked on this product, all on its full breakdown.
- stainless steel, no reported coating
- Gasket and seal degradation
3 hazards checked on this product, all on its full breakdown.
- stainless steel tumbler, no stated coating
- Silicone gasket degradation and ingestion
2 hazards checked on this product, all on its full breakdown.
- Recycled stainless steel, no coating disclosed
- Bacterial growth in seams or caps
- stainless steel interior, plastic exterior
- We found no PFAS statement from the brand
- Plastic exterior degradation and leachates
3 hazards checked on this product, all on its full breakdown.
- stainless steel, no stated interior coating
- We found no PFAS statement from the brand
- Seal degradation and bacterial growth
2 hazards checked on this product, all on its full breakdown.
- Stainless steel interior, BPA-free plastic exterior
- We found no PFAS statement from the brand
- Plastic exterior degradation and microplastic shedding
2 hazards checked on this product, all on its full breakdown.
- Stainless steel interior and exterior, plastic lid
- We found no PFAS statement from the brand
- Plastic lid polymer degradation
3 hazards checked on this product, all on its full breakdown.
- stainless steel body, silicone gasket/lid seal
- Silicone gasket degradation and bacterial/mold colonization
- Stainless steel interior, BPA-free plastic exterior
- Plastic exterior off-gassing or additives
3 hazards checked on this product, all on its full breakdown.
- 18/8 stainless steel interior and exterior, plastic lid components
- BPA & bisphenols
3 hazards checked on this product, all on its full breakdown.
- stainless steel with no disclosed coating
- We found no PFAS statement from the brand
- Stainless steel corrosion and pitting
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- stainless steel, vacuum insulated
- Silicone gasket and lid degradation
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- stainless steel, no known coating
- Bacterial or mold growth in seals and crevices
- 18/8 stainless steel, no coating
- Nickel leaching from stainless steel
- stainless steel interior, vacuum-insulated
- Lid/gasket material degradation
- Stainless steel tumbler, no coating disclosed
- We found no PFAS statement from the brand
- BPA & bisphenols
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- Stainless steel with double-wall vacuum insulation
- We found no PFAS statement from the brand
- Lid gasket/seal degradation
2 hazards checked on this product, all on its full breakdown.
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- 70Owala SmoothSip Travel Mug
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- 70Contigo Byron 2.0 Insulated Travel Mug
- 70Contigo West Loop 2.0 Travel Mug 2-Pack
- 70Contigo West Loop 3.0 Stainless Steel Travel Mug with AUTOSEAL Lid
- 70Hydro Flask 32 oz Hydro Flask All Around Travel Tumbler
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- 70Hydro Flask All Around Travel Tumbler
- 70Hydro Flask All Around Tumbler
- 70Hydro Flask Travel Tumbler
- 70OtterBox Elevation Wine Tumbler
- 70Owala 40 oz Tumbler
- 70Owala FreeSip Sway Travel Tumbler
- 70Owala FreeSip Tumbler
- 70S'well S'ip by S'well Takeaway Mug
- 70S'well S'ip by S'well Travel Mug
- 70S'well 24oz Tumbler with Straw
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- 70Simple Modern Classic Tumbler with Straw Lid & Flip Lid Travel Mug
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- 70Thermos Foam Insulated Travel Mug GS1500TRI6
- 70Yeti Rambler 12 oz Travel Bottle
- 70Yeti Rambler 18 oz Water Bottle with Straw Cap in Cape Taupe
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- 70Yeti Rambler Jr. 10 oz Tumbler with Straw Lid
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- 70OtterBox Elevation 16oz Tumbler
- 70OtterBox Elevation 28 Sport Bottle
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- 70Contigo West Loop 2.0 Leak-Proof Spill-Proof Insulated Travel Mug
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- 70Contigo Superior 2.0 Travel Mug
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