Cosori Premium II Plus 6.5-Quart Air Fryer
Skip without manufacturer documentation on non-stick coating chemistry.
Cosori doesn't disclose what non-stick coating covers the cooking basket on this Premium model. Most non-stick air fryer coatings historically used Teflon-type coating or Teflon-family coating, but Cosori offers no clarity or certification.
The better-graded swap
Big Boss
Big Boss Oil Less Fryer Air Fryer 16 Quart Replacement Clear Glass
75/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Stainless steel body; non-stick coated cooking basket (coating unspecified)
Lab data
No public lab test
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What Cosori Premium II Plus 6.5-Quart Air Fryer is made of, ingredients and materials
The Cosori Premium II Plus has a stainless steel exterior housing, which is chemically inert and does not leach into food. The cooking basket features a non-stick coating of unknown composition; Cosori does not publicly specify whether this is Teflon-type coating-based (Teflon-type), ceramic, or another polymer. Non-stick coatings can shed microparticles or release fumes if overheated or damaged, making the lack of transparency a material concern for this product.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Non-stick, chemistry undisclosed
Marketed as non-stick without stating the coating chemistry.
Non-stick coating degradation and microparticle release
The unspecified non-stick coating on the cooking basket may shed microparticles over time, especially if scratched or exposed to high heat. Inhaling or ingesting these particles is a documented concern in air-fryer use, but frequency and severity depend entirely on the coating material, which Cosori does not disclose.
Thermal fume release from non-stick coating
If the coating is Teflon-type coating-based (common in non-stick cookware), overheating beyond manufacturer limits can trigger release of fluorinated gases and particulates (polymer fume fever). Cosori does not specify temperature limits or coating type, leaving users to rely on general guidance.
Bacterial growth in heating element or crevices
Air fryers accumulate food residue and grease in crevices and on heating elements. If not cleaned regularly, bacteria and mold can grow in these areas, posing a hygiene rather than chemical hazard. This applies broadly to the product category but is user-dependent.
Manufacturing emissions (off-gassing on first use)
New air fryers may release volatile organic compounds (VOCs) from the non-stick coating, insulation, or adhesives during initial heating. This is typically temporary and resolves after a few preheating cycles but can trigger respiratory irritation in sensitive individuals; ventilate during first use.
What’s reassuring
Stainless steel leaching (chromium, nickel)
The stainless steel body and heating elements are not in direct food contact during normal use; interior surfaces are protected by the non-stick coating. No established leaching risk is documented for stainless steel air-fryer housings at typical operating temperatures.
How is this PFAS grade calculated?
The brand's record and disclosure
Cosori maintains a corporate website emphasizing product design and user reviews but does not publish material safety data sheets, coating specifications, or PFAS-related statements on widely available channels. The brand has not pursued third-party certifications (such as Greenguard or similar) to validate air-fryer safety claims. This silence on chemical composition is notable in a product category where non-stick coatings are the primary surface contact point with food.
How it compares in its category
Air fryers typically rely on non-stick coatings to function; most major brands (Instant Pot, Ninja, Philips) similarly do not disclose coating chemistry on product pages, though some have committed to phasing Teflon-type coating in response to consumer pressure. The Cosori Premium II Plus is mid-range in price and popularity but offers no material advantage in transparency compared to competitors. Ceramic-coated alternatives exist but are rarer and often more expensive in this category.
If you buy it
Use the air fryer at manufacturer-specified temperatures (typically under 400F for most models); Teflon-type coating coatings degrade and release fumes above 500F. Inspect the cooking basket regularly for scratches, peeling, or discoloration, which indicate coating breakdown; replace if visible damage occurs. Hand-wash the basket gently to avoid abrasion; avoid metal utensils. If you detect any odor during preheating or cooking, stop use immediately and ventilate the kitchen.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Cosori has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Cosori Premium II Plus 6.5-Quart Air Fryer?
- borosilicate glass, bare uncoated
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- 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 AmazonMore air fryers grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.