Do Ember insulated drink tumblers have PFAS?
Ember insulated drink tumblers average 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Ember insulated drink tumblers graded as of October 2026, below the 71 out of 100 median for the 25 other insulated drink tumblers brands graded alongside it.
Ember insulated drink tumblers average Good on our four-band scale. 4 of the 8 we graded are worth buying.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Ember insulated drink tumblers worth buying Good or better, best-graded first
Ember
Choral Arts Stainless Steel Water Bottle, Ember Choral Arts
- stainless steel, uncoated
- We found no PFAS statement from the brand
- Trace nickel or chromium leaching, Stainless steel contains small amounts of nickel and chromium. At neutral…
2 hazards checked on this product. See all of them.
Ember
Cold Tumbler
- stainless steel with silicone seal
- We found no PFAS statement from the brand
- Silicone seal degradation and microbial growth, Silicone gaskets can accumulate bacteria or mold if not…
2 hazards checked on this product. See all of them.
Ember
Cup 14 oz Slate Black
- Ceramic or ceramic-coated stainless steel with heated base
- We found no PFAS statement from the brand
- Heavy metals, Ceramic glazes can contain lead or cadmium, though modern food-contact ceramics are regulated.…
2 hazards checked on this product. See all of them.
Ember
Tumblers - Set of 4
- Stainless steel double-wall insulated
- We found no PFAS statement from the brand
- Double-wall separation and structural failure, Over time or after impact, the inner and outer walls may…
3 hazards checked on this product. See all of them.
Graded and flagged Poor and Bad, we’d swap these
Ember
16 oz Smart Tumbler
- stainless steel with unspecified internal coating/sealant
- We found no PFAS statement from the brand
- Unspecified internal coating degradation, The internal protective coating around the heating element is not…
3 hazards checked on this product. See all of them.
Ember
Personalized Ember Tumbler - Slate Black / 16 oz
- Stainless steel body, proprietary internal coating
- We found no PFAS statement from the brand
- Internal coating leaching or degradation, Proprietary coating composition is undisclosed. Polymer or resin…
4 hazards checked on this product. See all of them.
Ember
Ember Mug 2
- Stainless steel body, electronic heating element, proprietary interior coating
- We found no PFAS statement from the brand
- Proprietary interior coating leaching (unknown chemistry), Ember's non-disclosure of coating material…
4 hazards checked on this product. See all of them.
Ember
Personalised Ember Cold Tumbler with name or text engraving
- Stainless steel body, unspecified internal coating or lid seals
- We found no PFAS statement from the brand
- Internal coating composition (unspecified), Ember does not publicly disclose the material or additives in the…
3 hazards checked on this product. See all of them.
Better insulated drink tumblers from other brands
Graded higher than the Ember average of 54.
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.
The same question, asked of the other insulated drink tumblers brands
Best average grade first. Ember averages 54.
See every Ember product we grade on the Ember brand page, or the full insulated drink tumblers ranking.