Does Oster air fryers have PFAS?
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.
We graded 8 Oster air fryers products, averaging Bad (15/100). None of them grade Good or better. Against the other 29 air fryers brands we grade, where the middle brand sits at 15/100, Oster is about typical, scoring above 36% of them.
Graded and flagged Poor and Bad, we’d swap these
Oster
4-Quart Digital Air Fryer
Non-stick coated cooking basket (composition unspecified)
PFAS
Non-stick coating identity unconfirmed; if Teflon-type coating-based, overheating (above…
Coating delamination and ingestion of particles
Non-stick coatings can wear, flake, or peel with use and washing, particularly if…
Wait until Oster reveals the coating; nonstick baskets typically use PFAS.
⚠Nonstick, coating undisclosed
Oster
10 Function Air Fryer Oven Toaster Oven Countertop Oven
Stainless steel exterior, ceramic or aluminum interior coating (unspecified)
Aluminum leaching (interior coating unconfirmed)
If the interior is uncoated or poorly coated aluminum, acidic foods and high heat (above…
Ceramic coating degradation over time
Ceramic coatings on air fryers can chip or flake from thermal shock, mechanical wear, or…
Bacterial growth in removable crumb tray or vents
Air fryer ovens accumulate grease and food particles in trays and vent areas. Poor…
Uncertain; ask Oster about the interior coating.
⚠Nonstick, coating undisclosed
Oster
DiamondForce Nonstick XL 5 Quart Digital Air Fryer
Nonstick coating (DiamondForce brand, unspecified polymer)
Teflon-type coating thermal fume emission risk
DiamondForce is not confirmed Teflon-type coating-free. If Teflon-type coating-based…
Nonstick coating degradation and particle ingestion
High concern
Polymer off-gassing during initial use
New nonstick coatings may emit volatile organic compounds (VOCs) during the first few…
Wait for Oster to disclose the nonstick coating chemistry.
⚠Nonstick, coating undisclosed
Oster
Compact Countertop Air Fryer Toaster Oven
Stainless steel body; nonstick interior coating unspecified
PFAS
Interior coating composition is undisclosed by Oster. If conventional Teflon-type…
Coating degradation and flaking
No recalls on record, but budget air fryers with unspecified nonstick are prone to…
Volatile organic compounds (VOCs) during initial heating
Most new air fryers release minor odor on first use due to manufacturing residue and…
Thermal hazard from metal housing
Stainless steel exterior heats significantly during operation. Contact burns are a…
Wait for Oster to reveal coating type or confirm PFAS-free.
⚠Nonstick, coating undisclosed
Oster
BRAND NEW Air Fryer, 6 Quart Digital Air Fryer, Large Air Fryer With Windo - New Home | Color: Black | Size: l
Non-stick coating (unspecified type)
Non-stick coating thermal stability and fume risk (Teflon-type coating or undisclosed alternative)
Oster has not disclosed coating chemistry. If Teflon-type coating-based, overheating…
Coating degradation and microparticle ingestion
Non-stick coatings degrade with age, thermal cycling, and mechanical wear. Flaking or…
Temperature control accuracy and maintenance
Heating element performance degrades over time as dust accumulates and non-stick coating…
Wait for Oster to reveal the nonstick coating type.
⚠Nonstick, coating undisclosed
Oster
11-Quart Flex Air Fryer Oven
nonstick-coated interior (coating type unspecified)
Teflon-type coating fume inhalation risk (if Teflon-type coating-based coating)
If the nonstick coating is Teflon-type coating (Teflon), overheating above 500°F can…
Coating degradation and microparticulate ingestion
Nonstick coatings on budget air fryers commonly flake or peel within 1-3 years of regular…
Offgassing of manufacturing residues (volatile organic compounds)
Initial use may release minor odors from residual manufacturing solvents or oils in the…
Wait for Oster to disclose coating type; PFAS risk unclear.
⚠Nonstick, coating undisclosed
Oster
4 Qt. Black Air Fryer With Window
Stainless steel body; interior cooking surface unspecified
Non-stick coating degradation (Teflon-type coating or unknown polymer)
Interior coating material is unspecified. If Teflon-type coating-based, overheating above…
Coating flaking into food
Extended use without replacement may cause interior coating chips or powder to…
Volatile organic compounds (VOCs) off-gassing on first use
New air fryers often release minor odors during initial heating as manufacturing residues…
Wait for Oster to clarify the interior coating.
⚠Nonstick, coating undisclosed
Oster
DiamondForce Nonstick XL 5-Quart Digital AirFryer
Nonstick coating (type unspecified by Oster)
Teflon-type coating/nonstick coating fume risk (thermal decomposition)
Oster does not disclose whether the DiamondForce coating contains Teflon-type coating or…
Coating degradation and ingestion of microparticles
Nonstick coatings in air fryers experience thermal cycling and friction wear. If the…
Product safety certification gaps
Oster does not advertise third-party certifications (NSF, CPSIA, or safety testing…
Wait for Oster to disclose the nonstick coating type.
⚠Nonstick, coating undisclosed
Better air fryers from other brands
Graded higher than the Oster average of 15.
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
See every Oster product we grade on the Oster brand page, or the full air fryers ranking.