Ninja Crispi 4-in-1 Portable Glass Air Fryer Cooking System
Glass cooking vessel has no nonstick coating on record.
The cooking vessel is glass with stainless steel and plastic components. No coating is recorded on the glass surface. Ninja has no PFAS statement on record for this product.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Glass cooking vessel with stainless steel and plastic components
Lab data
No public lab test
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What Ninja Crispi 4-in-1 Cooking System is made of, ingredients and materials
The Ninja Crispi's primary cooking surface is borosilicate glass, which is chemically inert and does not leach harmful compounds during heating. The unit combines stainless steel structural components, a plastic housing, and internal heating elements. Glass has lower concern for direct food contact in air fryers compared to traditional nonstick-coated models, which can experience coating degradation and potential PFAS off-gassing.
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.
Thermal fracture or stress in glass cooking vessel
Borosilicate glass is durable but can fracture if subjected to rapid temperature changes or impacts. Risk is low with normal use but increases if the vessel is exposed to cold water immediately after heating or dropped.
Formaldehyde / VOCs
The plastic enclosure may release volatile organic compounds (VOCs) during initial use or when exposed to sustained heat from the cooking chamber. No specific testing is publicly available for this model; off-gassing typically diminishes after the first few hours of operation.
Source, ATSDR ↗Electrical hazard or heating element degradation
Like all heating appliances, the internal heating element can corrode over time with moisture or salt exposure. Degradation is not a chemical hazard but can reduce performance; ensure unit is dry before storage and avoid prolonged exposure to humid environments.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Stainless steel leaching (minor metals)
High-grade stainless steel (commonly 304 or 316) does not leach detectable amounts of iron, chromium, or nickel into food under normal cooking conditions. No recalls or reports specific to this product are on record.
BPA & bisphenols
No public disclosure from Ninja confirms BPA-free or phthalate-free status for this model's plastic housing. Modern kitchen appliances typically use polystyrene or acrylonitrile-butadiene-styrene (ABS), which are not known to leach into food when not in direct food contact, but this has not been verified for this specific product.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Ninja (SharkNinja Operating LLC) does not publicly disclose detailed material safety testing or ingredient sourcing for cookware products on its website. The brand has no known major product recalls or safety controversies specific to air fryers, though like most kitchen appliance manufacturers, Ninja provides minimal transparency about flame retardants or coatings in plastic housing. No third-party certifications (NSF, GOTS, etc.) are evident for this model.
How it compares in its category
Most air fryers use perforated nonstick-coated baskets or trays, typically Teflon-type coating-based, which can degrade with high heat and release fumes if overheated. The Ninja Crispi's glass cooking vessel is a standout choice within the portable/compact air fryer segment, where plastic housings and aluminum cooking surfaces are standard. This design choice places it in the lower-risk tier for cooking surface hazards, though it does not eliminate concerns around plastic off-gassing in the main housing.
If you buy it
Use the glass vessel only within the manufacturer's recommended temperature limits (typically up to 400F for glass); do not exceed these, as thermal shock or stress fractures can occur. Clean the glass and stainless steel components with mild soap and warm water; avoid abrasive scrubbers that may scratch glass or expose underlying material. Inspect the plastic housing periodically for cracks or discoloration that suggest degradation. Replace the unit if the glass vessel cracks or the heating element shows signs of corrosion.
What is not known about PFAS in this product?
- Basis
- Model estimate, 75% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Ninja has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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.