Cosori Review, Is Cosori Non-Toxic?
Cosori averages 22 out of 100 on PFAS Authority's PFAS and toxin screen across the 9 Cosori products graded as of October 2026, and 1 of them reach its 70 point pass mark.
Cosori grades Bad on our four-band scale.
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.
What Cosori says and does about PFAS
Cosori publishes an explainer saying PFAS-free, PFOA-free, PTFE and Teflon do not all mean the same thing, and that a PFAS-free claim usually refers to a specific material or coating the manufacturer identifies. On that page it does not identify one for any of its own air fryers. We found no Cosori statement naming what the baskets we grade are coated with.
- Brand statementCosori’s own explainer says PFAS-free, PFOA-free, PTFE and Teflon do not mean the same thing, and that PFOA is one specific substance within the broader PFAS group. Cosori UK ↗
- Brand statementThe same page says a PFAS-free claim usually refers to a specific material, coating or component identified by the manufacturer, and it does not identify one for any Cosori model. Cosori UK ↗
Sources checked September 17, 2026. A brand statement is the company’s own claim, which we report but have not verified. Our grades are model-based estimates, not lab tests.
Cosori is one of the brands we researched by hand for our record of what every brand has published about PFAS, where the same question is answered for each of them in one line.
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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.
Does Cosori have PFAS, by category
Which Cosori products are PFAS-free? Good or better, best-graded first
- stainless steel exterior, glass and metal interior
- Thermal degradation of gaskets or seals. Silicone or rubber gaskets used around the glass door may degrade or…
3 hazards checked on this product, all on its full breakdown.
Which Cosori products contain PFAS? Poor and Bad, we’d swap these
- stainless steel body, nonstick interior coating (unspecified type)
- Nonstick coating integrity and leaching. The CO130-AO's nonstick coating type is undisclosed. If Teflon-type…
3 hazards checked on this product, all on its full breakdown.
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- Non-stick coated basket; composition unspecified
- Non-stick coating degradation and fume release. Unknown coating type means unknown degradation threshold. If…
4 hazards checked on this product, all on its full breakdown.
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- Nonstick-coated basket/tray (Teflon-type coating status undisclosed)
- Teflon-type coating fume risk (if present). Cosori has not confirmed or denied Teflon-type coating use. If…
4 hazards checked on this product, all on its full breakdown.
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- Nonstick-coated basket and trays; coating type undisclosed
- Teflon-type coating fume risk (nonstick coating degradation). Nonstick coating type undisclosed by Cosori. If…
3 hazards checked on this product, all on its full breakdown.
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- aluminum cooking basket with nonstick coating (unspecified)
- Teflon-type coating fume risk (nonstick coating). Cosori has not disclosed the nonstick coating chemistry. If…
3 hazards checked on this product, all on its full breakdown.
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- nonstick-coated cooking basket (type unspecified)
- Teflon-type coating fume risk (thermal degradation). If the coating is Teflon-type coating-based, overheating…
3 hazards checked on this product, all on its full breakdown.
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- nonstick-coated basket/tray; composition not publicly disclosed
- Teflon-type coating-based nonstick coating degradation and fume release. If the basket uses traditional…
5 hazards checked on this product, all on its full breakdown.
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- Stainless steel body; non-stick coated cooking basket (coating unspecified)
- Non-stick coating degradation and microparticle release. The unspecified non-stick coating on the cooking…
4 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonWhat Cosori told Minnesota 26 filings, the company’s own words to a regulator
Minnesota requires manufacturers to report every product they sell there that contains intentionally added PFAS, naming the compound, what it does and roughly how much. Cosori has filed the disclosures below. Nothing here is our grade or our inference, and it does not change any score on this page.
- Where in the product,
- fuse tube
- What it is doing,
- Flame retardant
- Compound,
- Perfluorotri-n-butylamine (CAS 86508-42-1)
- How much the filer reports,
- 1,000 ppm to <10,000 ppm (1%)
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Fluoroplastic pipe
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) (CAS 25067-11-2)
- How much the filer reports,
- 90 to 100%
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Teflon seal
- What it is doing,
- Sealant
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- NTC Wire Insulation
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 90 to 100%
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Teflon seal
- What it is doing,
- Corrosion inhibitor
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Teflon seal
- What it is doing,
- Flame retardant
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Foam tape of panel
- What it is doing,
- Surfactant
- Compound,
- trifluoromethanesulfonic acid (CAS 1493-13-6)
- How much the filer reports,
- Practical Detection Limit to <100 ppm
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Teflon seal
- What it is doing,
- Corrosion inhibitor
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Teflon seal
- What it is doing,
- Flame retardant
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Fluoroplastic wire cable
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 90 to 100%
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Teflon seal
- What it is doing,
- Sealant
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Shaft seal
- What it is doing,
- Sealant
- Compound,
- 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid (CAS 1763-23-1)
- How much the filer reports,
- Practical Detection Limit to <100 ppm
HTS 8509.40.0040 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Insulating Sleeving
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 90 to 100%
HTS 8516.71.0020 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Membrane Sheet of panel
- What it is doing,
- Surfactant
- Compound,
- trifluoromethanesulfonic acid (CAS 1493-13-6)
- How much the filer reports,
- Practical Detection Limit to <100 ppm
HTS 8516.71.0020 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Electronic wire cable
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) (CAS 25067-11-2)
- How much the filer reports,
- 90 to 100%
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- NTC Wire Insulation
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 90 to 100%
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Plastic structural part
- What it is doing,
- Flame retardant
- Compound,
- 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Fluoroplastic wire cable
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) (CAS 25067-11-2)
- How much the filer reports,
- 90 to 100%
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- temperature controller
- What it is doing,
- Flame retardant
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Temperature-controlled connector
- What it is doing,
- Flame retardant
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Plastic structural part
- What it is doing,
- Flame retardant
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 100 ppm to <1,000 ppm (0.1%)
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- battery
- What it is doing,
- Anti-adhesive/cohesive
- Compound,
- 2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptanoic acid (CAS 1546-95-8)
- How much the filer reports,
- Practical Detection Limit to <100 ppm
HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- battery
- What it is doing,
- Conductive agent
- Compound,
- methanesulfonamide, 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)-, lithium salt (CAS 90076-65-6)
- How much the filer reports,
- Practical Detection Limit to <100 ppm
HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- battery
- What it is doing,
- Binder
- Compound,
- poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Internal Wire cable
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 90 to 100%
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
- Where in the product,
- Internal Wire cable
- What it is doing,
- Insulators
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 90 to 100%
HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30
Source, manufacturer filings made to the Minnesota Pollution Control Agency under the state’s PFAS in Products law and published through PRISM, run by the Interstate Chemicals Clearinghouse. These are the manufacturers’ own statements, not our grades and not laboratory results. A filing covers the product as sold in Minnesota and says nothing about products or formulations the company did not file. Reporting was still open when this was pulled, so absence from the set is not evidence a product is PFAS-free.
What to buy instead Good or better, in the categories Cosori sells
- borosilicate glass, bare uncoated
- We found no PFAS statement from the brand
- Thermal shock and fracture
2 hazards checked on this product, all on its full breakdown.
- borosilicate glass
- We found no PFAS statement from the brand
- Aluminum leaching from base/housing
4 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- glass bowl, stainless steel exterior
- We found no PFAS statement from the brand
- Thermal stress and glass breakage
2 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonCosori and PFAS, common questions
- Does Cosori have PFAS?
- Cosori averages 22 out of 100 on PFAS Authority's PFAS and toxin screen across the 9 Cosori products graded as of October 2026, and 1 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests. Cosori explains that PFOA-free and PFAS-free are different claims, but does not say on that page what its own air fryer baskets are coated with.
- Is Cosori non-toxic?
- Cosori Smart Toaster Oven is the highest-graded Cosori product we have scored, at 75/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Cosori products are lower concern for PFAS?
- The highest-graded Cosori products we have scored are Cosori Smart Toaster Oven. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which Cosori products should I avoid?
- The lowest-graded Cosori products we have scored are Cosori Premium II Plus 6.5-Quart Air Fryer, Cosori Iconic Smart Air Fryer, Cosori Dual Blaze Smart Air Fryer. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →