Insulated Travel Mugs, ranked by PFAS safety

Corkcicle

Coffee Mug

Stainless steel interior, insulated walls with cork/polymer exterior

A

B

PFASAll

Lower concern. Stainless steel interior poses minimal PFAS risk.

✓Naturally PFAS-free material

Thermos

Stainless Steel King Travel Mug

Stainless steel interior and exterior, plastic lid

A

B

PFASAll

Lower concern. Bare stainless steel has minimal PFAS risk.

✓Bare metal or glass, no coating at all

Thermos

Icon 16 oz Stainless Steel Mug

stainless steel, no stated interior coating

A

B

PFASAll

Lower concern. Bare stainless steel has minimal PFAS risk.

✓Bare metal or glass, no coating at all

Thermos

18 oz. Icon Vacuum Insulated Stainless Steel Mug

stainless steel exterior, vacuum insulation, stainless steel interior

A

C

PFASAll

Lower concern. Stainless steel mug with no water-repellent coating.

✓Bare metal or glass, no coating at all

Thermos

16oz Stainless King Coffee Mug

stainless steel interior, plastic exterior

A

B

PFASAll

Lower PFAS concern. Stainless steel contact surface unlikely PFAS source.

✓Bare metal or glass, no coating at all

Thermos

Icon 16 oz Stainless Steel Tumbler

Stainless steel interior, BPA-free plastic exterior

A

B

PFASAll

Lower concern. Stainless steel tumbler with no known PFAS risk.

✓Bare metal or glass, no coating at all

Thermos

Guardian Stainless Steel Mug

Stainless steel (uncoated)

A

A

PFASAll

Lower concern. Bare stainless steel mug has no known PFAS risk.

✓Bare metal or glass, no coating at all

Thermos

Stainless Steel Mug

stainless steel, no stated coating

A

B

PFASAll

Lower concern. Bare stainless steel unlikely to contain PFAS.

✓Bare metal or glass, no coating at all

S'well

40 oz Stainless Steel Traveler

18/8 stainless steel interior and exterior, plastic lid components

A

D

PFASAll

Lower concern. Bare stainless steel vessel, check lid material separately.

✓Bare metal or glass, no coating at all

S'well

Recycled Stainless Steel Explorer 24oz Green Jasper

Recycled stainless steel, no coating disclosed

A

A

PFASAll

Lower concern. Bare stainless steel carries minimal PFAS risk.

✓Bare metal or glass, no coating at all

Ninja

Stainless Steel Travel Coffee Mug with Spinner

Stainless steel interior and exterior

A

B

PFASAll

Stainless steel travel mug.

✓Bare metal or glass, no coating at all

Ninja

Sun Ninja 20oz Stainless Steel Tumbler

stainless steel, no stated coating

A

B

PFASAll

Stainless steel tumbler carries low PFAS risk, no red flags identified.

✓Bare metal or glass, no coating at all

Corkcicle

Cold Cup XL

Double-wall insulated stainless steel

B

C

PFASAll

Lower concern. Stainless steel tumbler unlikely to contain PFAS.

⚠Brand says nothing about PFAS

Thermos

Foam Insulated Travel Mug GS1500TRI6

Stainless steel interior, foam insulation outer shell

B

C

PFASAll

Lower concern; stainless steel interior, typical foam shell unlikely to leach PFAS.

⚠Brand says nothing about PFAS

S'well

S'ip by S'well Travel Mug

Stainless steel with plastic lid components

B

C

PFASAll

Lower concern, but brand silence on materials limits certainty.

⚠Brand says nothing about PFAS

S'well

Mug Pink

Stainless steel double-wall vacuum insulated

B

C

PFASAll

Lower concern. Stainless steel construction unlikely to contain PFAS.

⚠Brand says nothing about PFAS

S'well

S'ip by S'well Takeaway Mug

Stainless steel exterior, insulated

B

C

PFASAll

Lower concern; stainless steel tumbler with no reported coatings.

⚠Brand says nothing about PFAS

S'well

Vacuum Insulated Travel Mug with Handle

Stainless steel body, plastic handle and cap

B

F

PFASAll

Lower concern, but S'well provides no PFAS disclosure.

⚠Brand says nothing about PFAS

S'well

24oz Tumbler with Straw

Stainless steel double-wall with plastic lid and straw

B

F

PFASAll

Lower concern. Stainless steel core unlikely to contain PFAS.

⚠Brand says nothing about PFAS

Corkcicle

Commuter Cup

Stainless steel body, cork exterior, silicone or plastic lid

B

B

PFASAll

Lower concern. No PFAS-prone materials identified in standard construction.

⚠Brand says nothing about PFAS

Corkcicle

Mug Rifle Paper

Stainless steel with cork exterior and ceramic interior

B

C

PFASAll

Lower concern. Ceramic and stainless steel are inherently PFAS-free.

⚠Brand says nothing about PFAS

Corkcicle

Go Cup XL 30oz Thyme

Stainless steel body, plastic lid/gasket

B

C

PFASAll

Lower concern. Stainless steel tumbler with standard plastics.

⚠Brand says nothing about PFAS

Corkcicle

Pure Taste Insulated Coffee Mug

Stainless steel body, cork accents, plastic lid

B

D

PFASAll

Lower concern. Stainless steel core unlikely to contain PFAS.

⚠Brand says nothing about PFAS

Corkcicle

. Pure Taste Tumbler

Stainless steel interior, cork exterior

B

C

PFASAll

Lower concern. Stainless steel and cork are inherently PFAS-free materials.

⚠Brand says nothing about PFAS

Corkcicle

Sierra Tumbler

Stainless steel exterior, vacuum-insulated core, uncoated interior

B

C

PFASAll

Lower concern. Stainless steel insulated tumbler with no water-resistant treatment.

⚠Brand says nothing about PFAS

Ninja

26oz BlendBOSS Travel Tumbler

Stainless steel with plastic lid

B

C

PFASAll

Lower concern tumbler. Stainless steel core is PFAS-free; lid material unverified.

⚠Brand says nothing about PFAS

Ninja

Hot & Cold Insulated Tumbler

Stainless steel and plastic (BPA-free marketed)

B

C

PFASAll

Lower concern tumbler; no PFAS indicators in typical construction.

⚠Brand says nothing about PFAS

Ninja

SharkNinja 20 oz. To-Go Ninja Cup Blender 731KKU300

BPA-free plastic (cup/blender housing)

B

C

PFASAll

No PFAS concerns known; silent on chemical transparency.

⚠Brand says nothing about PFAS

Ninja

BlendBoss Tumbler Blender with 26oz Travel Tumbler

Plastic blender base, stainless steel blades, plastic/polymer tumbler

B

C

PFASAll

No known PFAS risk, but no brand transparency on coatings.

⚠Brand says nothing about PFAS

Ninja

Thirsti Travel Water Bottle

Stainless steel and plastic components

B

C

PFASAll

Lower concern. Stainless steel bottle, no known PFAS-risk coatings reported.

⚠Brand says nothing about PFAS

Ninja

Sip Perfect Travel Mug

Stainless steel with leak-proof seal coating

F

F

PFASAll

Stainless steel core is lower concern, but seal coating raises questions.

⚠Waterproof or stain-proof treatment