Stainless Steel Insulated Drinkware Tumblers, ranked by PFAS safety

All 30 bare stainless steel picks in our insulated drinkware tumblers database, graded A to F and ranked safest first. 27 earn a buy-worthy grade.

Contigo Byron 2.0 Stainless Steel Travel Mug Snapseal

Contigo

Byron 2.0 Stainless Steel Travel Mug Snapseal

Stainless steel, silicone gasket

A
B
PFASAll
A · Very low PFAS3 flags

Travel mug with lower PFAS concern; stainless steel typically safe.

Bare metal or glass, no coating at all

Thermos Stainless King Travel Tumbler

Thermos

Stainless King Travel Tumbler

Stainless steel exterior, vacuum-insulated, minimal internal coating

A
B
PFASAll
A · Very low PFAS2 flags

Lower concern. Stainless steel tumbler with standard design, no PFAS-prone features.

Bare metal or glass, no coating at all

Thermos Stainless Steel Tumbler w/ Slide Lock Lid

Thermos

Stainless Steel Tumbler w/ Slide Lock Lid

Stainless steel tumbler with plastic slide lock lid

A
B
PFASAll
A · Very low PFAS2 flags

Lower concern. Stainless steel is PFAS-free; monitor lid material.

Bare metal or glass, no coating at all

Thermos Stainless Steel Tumbler Slide Lock Lid

Thermos

Stainless Steel Tumbler Slide Lock Lid

Stainless steel body, plastic/silicone lid

A
B
PFASAll
A · Very low PFAS2 flags

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

Bare metal or glass, no coating at all

Stainless King Tumbler

Thermos

Stainless King Tumbler

Stainless steel interior, plastic exterior lid

A
A
PFASAll
A · Very low PFAS1 flag

Lower concern. Bare stainless steel has no PFAS risk.

Bare metal or glass, no coating at all

Ello Beacon Vacuum Insulated Stainless Steel Tumbler

Ello

Beacon Vacuum Insulated Stainless Steel Tumbler

Stainless steel and glass, vacuum insulated

A
B
PFASAll
A · Very low PFAS2 flags

Lower concern. Bare stainless steel and glass have minimal PFAS risk.

Bare metal or glass, no coating at all

Ello Emma Vacuum Insulated Stainless Steel Kids Water Bottle 14oz

Ello

Emma Vacuum Insulated Stainless Steel Kids Water Bottle 14oz

Stainless steel body, vacuum insulation, no surface treatment disclosed

A
B
PFASAll
A · Very low PFAS3 flags

Lower concern. Bare stainless steel water bottle with no coatings reported.

Bare metal or glass, no coating at all

Ello 30oz Stainless Steel Handled Tumbler 2pk Lemon/Blue Stripe

Ello

30oz Stainless Steel Handled Tumbler 2pk Lemon/Blue Stripe

Stainless steel, no disclosed coating or treatment

A
B
PFASAll
A · Very low PFAS3 flags

Lower concern. Bare stainless steel tumbler, no special coatings disclosed.

Bare metal or glass, no coating at all

40oz Stainless Steel Tumbler

Calpak

40oz Stainless Steel Tumbler

Stainless steel, bare uncoated

A
B
PFASAll
A · Very low PFAS3 flags

Lower PFAS concern. Bare stainless steel has no coating risk.

Bare metal or glass, no coating at all

Zojirushi Stainless Carry Tumbler

Zojirushi

Stainless Carry Tumbler

Stainless steel interior, plastic exterior

A
C
PFASAll
A · Very low PFAS3 flags

Lower concern. Bare stainless steel contact surfaces, no known PFAS risk.

Bare metal or glass, no coating at all

Stainless Steel Travel Mug Zojirushi

Zojirushi

Stainless Steel Travel Mug Zojirushi

stainless steel interior, plastic lid

A
C
PFASAll
A · Very low PFAS3 flags

Lower PFAS concern, stainless steel core.

Bare metal or glass, no coating at all

Zojirushi Stainless Mug

Zojirushi

Stainless Mug

stainless steel, no coating specified

A
B
PFASAll
A · Very low PFAS3 flags

Stainless steel mug, lower PFAS concern.

Bare metal or glass, no coating at all

Ello Oasis Orange Daisy Tumbler

Ello

Oasis Orange Daisy Tumbler

BPA-free plastic, stainless steel lid

B
D
PFASAll
B · Low PFAS5 flags

Lower concern tumbler; plastic may contain PFAS additives, but no known PFAS surface treatments.

Brand says nothing about PFAS

Contigo Shake Go Tumbler

Contigo

Shake Go Tumbler

Plastic (BPA-free) and stainless steel interior

B
C
PFASAll
B · Low PFAS3 flags

Lower concern. Plastic tumbler with no known PFAS-typical coatings.

Brand says nothing about PFAS

Contigo Streeterville Tumbler

Contigo

Streeterville Tumbler

Stainless steel with plastic lid

B
C
PFASAll
B · Low PFAS2 flags

Likely lower concern, but Contigo offers no PFAS transparency.

Brand says nothing about PFAS

Contigo Streeterville Tumbler 40-oz

Contigo

Streeterville Tumbler 40-oz

Stainless steel exterior, plastic/elastomer lid and base

B
C
PFASAll
B · Low PFAS2 flags

Lower concern; stainless steel tumbler with no known PFAS-typical features.

Brand says nothing about PFAS

Contigo Autoseal West Loop 2.0 Travel Mug

Contigo

Autoseal West Loop 2.0 Travel Mug

Stainless steel body, plastic lid and components

B
C
PFASAll
B · Low PFAS3 flags

Lower concern. No PFAS-prone coatings identified in typical design.

Brand says nothing about PFAS

Thermos 24oz Insulated Cold Tumbler

Thermos

24oz Insulated Cold Tumbler

Stainless steel and double-wall insulation

B
C
PFASAll
B · Low PFAS2 flags

Lower PFAS concern. Stainless steel construction poses minimal chemical leaching risk.

Brand says nothing about PFAS

Thermos 24oz Double WALL Tumbler

Thermos

24oz Double WALL Tumbler

Stainless steel interior, plastic/polymer exterior

B
C
PFASAll
B · Low PFAS2 flags

Lower concern, but brand discloses nothing on PFAS.

Brand says nothing about PFAS

Ello Port 30oz Tumbler with Carry Loop & Integrated Handle

Ello

Port 30oz Tumbler with Carry Loop & Integrated Handle

Stainless steel tumbler with plastic/elastomer lid and carry loop

B
C
PFASAll
B · Low PFAS3 flags

Lower concern. Stainless steel core unlikely PFAS source.

Brand says nothing about PFAS

CamelBak Horizon Tumbler

Calpak

CamelBak Horizon Tumbler

Stainless steel with plastic lid and gasket

B
C
PFASAll
B · Low PFAS3 flags

Lower concern tumbler, but brand makes no PFAS disclosure.

Brand says nothing about PFAS

16oz Insulated Hot Tumbler

Calpak

16oz Insulated Hot Tumbler

Stainless steel exterior, plastic/silicone interior

B
D
PFASAll
B · Low PFAS4 flags

Lower concern. Stainless steel tumbler with no known PFAS-prone treatments.

Brand says nothing about PFAS

CamelBak Tumbler 16oz

Calpak

CamelBak Tumbler 16oz

Stainless steel with plastic lid/base

B
C
PFASAll
B · Low PFAS2 flags

Lower concern; stainless steel core unlikely to contain PFAS.

Brand says nothing about PFAS

Insulated Tumbler 40oz

Calpak

Insulated Tumbler 40oz

Stainless steel with vacuum insulation

B
C
PFASAll
B · Low PFAS2 flags

Lower concern. Stainless steel tumbler unlikely to contain PFAS.

Brand says nothing about PFAS

Vacuum Insulated Tumbler (11 oz)

Calpak

Vacuum Insulated Tumbler (11 oz)

Vacuum-insulated stainless steel and plastic lid

B
C
PFASAll
B · Low PFAS3 flags

Lower concern, typical insulated tumbler design.

Brand says nothing about PFAS

Sample - 12 oz. Sherpa Vacuum Tumbler and Slim Can Insulator - Autumn Orange

Calpak

Sample - 12 oz. Sherpa Vacuum Tumbler and Slim Can Insulator - Autumn Orange

Stainless steel tumbler with sherpa fleece insulator

B
C
PFASAll
B · Low PFAS2 flags

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

Brand says nothing about PFAS

Zojirushi Stainless Steel Vacuum Insulated Tumbler 0.72L

Zojirushi

Stainless Steel Vacuum Insulated Tumbler 0.72L

Stainless steel with vacuum insulation

B
D
PFASAll
B · Low PFAS3 flags

Stainless steel construction poses lower PFAS concern.

Brand says nothing about PFAS

Thermos Guardian Stainless Steel Tumbler

Thermos

Guardian Stainless Steel Tumbler

Stainless steel interior, exterior coating unspecified

F
F
PFASAll
F · High PFAS3 flags

Lower concern, but Thermos lacks transparency on exterior coating.

Stain-resistant finish

20oz Double Wall Tumbler With Vacuum Sealer

Calpak

20oz Double Wall Tumbler With Vacuum Sealer

Double-wall stainless steel or similar, internal coating unspecified

F
F
PFASAll
F · High PFAS4 flags

Unknown internal coating composition.

Undisclosed proprietary coating

Contigo Luxe Travel Mug

Contigo

Luxe Travel Mug

Stainless steel body with silicone lid gasket and rubber base; lid likely includes leak-proof coating

F
F
PFASAll
F · High PFAS4 flags

Stainless steel core lower concern; waterproof gaskets pose moderate PFAS uncertainty.

Waterproof or stain-proof treatment

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