Cosori Air Fryer Pro LE 5-Qt Airfryer
Pass on this model until Cosori reveals nonstick coating chemistry or switches to Teflon-type coating-free.
The Pro LE has a nonstick-coated aluminum basket, but Cosori reveals nothing about the Teflon-family coating type or PFAS content. Industry-standard nonstick coatings frequently contain PFAS or substitutes.
The safe swap
Breville
Breville the Smart Oven
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
aluminum cooking basket with nonstick coating (unspecified)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Non-stick, chemistry undisclosed
Advertised as non-stick but coating type is not explained.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
Category baseline
cookware is a category where PFAS exposure is more common.
Nonstick coating degradation (temperature-induced)
If the coating is Teflon-type coating or a Teflon-type coating-variant, exceeding recommended temperatures can cause flaking and fume release. Cosori does not specify the coating type or degradation temperature, leaving the risk profile unclear.
Unspecified coating chemical composition
Industry practice shows many nonstick air fryer baskets contain PFAS or PFAS-precursor chemicals. Cosori's silence on this point prevents a full hazard assessment and is a compliance and transparency gap.
Bacterial or biofilm growth in air inlet/vents
Air fryers accumulate food residue in internal channels. If not regularly cleaned per manual, microbial growth is possible; this is a usage issue, not a material defect.
Thermal overload and smoke/fumes if interior blockage occurs
Blocking air vents with foil or overcrowding can cause internal temperature spikes. This is user-error risk, not specific to Cosori, but warrants mention.
What’s reassuring
Aluminum leaching
Intact nonstick coatings effectively isolate aluminum from food. Risk is theoretical only if coating is damaged or breached; no reported cases tied to this model.
The full breakdown
What it's made of and why it matters
The Cosori Pro LE features an aluminum cooking basket with a nonstick coating of unspecified chemistry. Aluminum itself is safe for cooking at air fryer temperatures (typically 180, 400°F), but the nonstick layer's composition is critical: if it contains PFOA, PFAS precursors, or other fluorochemicals, degradation or overheating could release them. Cosori has not publicly disclosed whether the coating is Teflon-type coating-based, ceramic, or a proprietary formulation, making independent verification impossible.
The brand's record and disclosure
Cosori has not issued public statements on nonstick chemistry, PFAS content, or fluorochemical sourcing. The brand holds no known third-party certifications (GOTS, Greenguard, etc.) specific to cookware safety. No major safety recalls tied to this model's nonstick coating have been documented in FDA or CPSC databases as of late 2024, but absence of recalls does not confirm safety.
How it compares in its category
Most mainstream air fryers (Instant Pot, Ninja, Philips) use similar aluminum baskets with proprietary nonstick coatings; few disclose PFAS-free status. The Cosori Pro LE is mid-range in transparency and feature set. Alternatives with explicitly Teflon-type coating-free or ceramic-coated baskets exist (e.g., some Instant Pot models marketed as PFAS-conscious) but remain niche. At price point, the Cosori is competitive but not differentiated on safety disclosure.
If you buy it
Keep temperature at or below manufacturer specs (typically 400°F max) to minimize coating stress and potential off-gassing. Hand-wash the basket in lukewarm water; avoid dishwasher and abrasive scrubbers, which accelerate nonstick degradation. Inspect the basket annually for chips, peeling, or visible wear; replace if compromised. Ensure good ventilation during use, as any nonstick coating will emit fumes if overheated, whether or not PFAS is involved.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Cosori has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Air Fryers
Ninja
Crispi 4-in-1 Portable Glass Air Fryer Cooking System
Glass cooking vessel with stainless steel and plastic components
Thermal fracture or stress in glass cooking vessel
Limited concern
Formaldehyde / VOCs
Limited concern
Electrical hazard or heating element degradation
Limited concern
Glass cooking surface avoids nonstick coatings entirely.
⚠Risky category by default
Ninja
Crispi Pro 6-in-1 Glass Air Fryer
Glass cooking vessel with stainless steel components
Thermal shock / glass breakage risk
Limited concern
Glass construction means lower PFAS concern than typical nonstick air fryers.
⚠Risky category by default
Cosori
Smart Toaster Oven
stainless steel exterior, glass and metal interior
Thermal degradation of gaskets or seals
Limited concern
Grease accumulation and combustion byproducts
Limited concern
Glass door thermal stress and breakage
Limited concern
Lower PFAS concern, toaster ovens rarely use nonstick coatings, though brand makes no transparency statement.
⚠Risky category by default
More 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.