Ember Review, Is Ember Non-Toxic?
Ember averages 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Ember products graded as of October 2026, and 4 of them reach its 70 point pass mark.
Ember grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
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.
Does Ember have PFAS, by category
Worth buying from Ember 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.
What to buy instead Good or better, in the categories Ember sells
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.
Ember and PFAS, common questions
- Does Ember have PFAS?
- Ember averages 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Ember products graded as of October 2026, and 4 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Ember non-toxic?
- Ember Choral Arts Stainless Steel Water Bottle, Ember Choral Arts is the highest-graded Ember product we have scored, at 80/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Ember products are lower concern for PFAS?
- The highest-graded Ember products we have scored are Ember Choral Arts Stainless Steel Water Bottle, Ember Choral Arts, Ember Cold Tumbler, Ember Cup 14 oz Slate Black. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which Ember products should I avoid?
- The lowest-graded Ember products we have scored are Personalised Ember Cold Tumbler with name or text engraving, Ember Mug 2, Personalized Ember Tumbler - Slate Black / 16 oz. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →