If you have been following the news in Australia lately, you have probably seen alarming headlines about PFAS — so-called "forever chemicals" — showing up in everything from drinking water to cookware. And if you own an air fryer (or are about to buy one), you might be wondering: is my air fryer actually safe?
It is a fair question. Let us cut through the fear and look at what the science actually says about air fryer coatings, which chemicals matter, and how to choose the safest option for your kitchen.
What Are PFAS and Why Should You Care?
PFAS (per- and polyfluoroalkyl substances) are a group of over 14,000 synthetic chemicals that have been manufactured since the 1940s. They are called "forever chemicals" because they do not break down naturally in the environment — or in your body.
The two most well-known PFAS compounds are:
- PFOA (perfluorooctanoic acid) — used historically in the manufacturing process of Teflon. Classified as "carcinogenic to humans" by the International Agency for Research on Cancer (IARC).
- PTFE (polytetrafluoroethylene) — the actual non-stick coating material commonly known as Teflon. Generally considered stable at normal cooking temperatures, but breaks down above 500°F (260°C).
The Australian Context
Australia has been increasingly proactive about PFAS. The Australian Government Department of Climate Change, Energy, the Environment and Water has established PFAS National Environmental Management Plans. Several Australian states have detected PFAS contamination in water supplies near military bases and industrial sites, making Australians particularly aware of — and concerned about — these chemicals.
Is the Non-Stick Coating in Your Air Fryer Dangerous?
Here is where things get nuanced. Most modern air fryers use a PTFE-based non-stick coating on their baskets and drawers. Let us separate fact from panic:
When PTFE Is Generally Safe
- At normal air frying temperatures — typically 180°F to 450°F (82°C to 232°C) — PTFE coatings are chemically stable and do not release harmful fumes
- The US FDA considers PTFE coatings safe for cooking when used as directed
- Most reputable manufacturers have eliminated PFOA from the manufacturing process since 2015 (the EPA's PFOA Stewardship Program)
When PTFE Becomes a Problem
- Above 500°F (260°C): PTFE begins to decompose, releasing volatile compounds including ultrafine particles and toxic gases
- Scratched or damaged coatings: When the non-stick surface is chipped or peeling, the underlying aluminium is exposed and coating fragments can mix with food
- Over time: Even careful use degrades non-stick coatings. Most manufacturers recommend replacing non-stick baskets every 2-3 years
The real risk is not dramatic poisoning — it is low-level, chronic exposure over years of use, especially if you regularly overheat the basket or use damaged cookware.
The "PFOA-Free" Label Is Not Enough
Here is something most air fryer brands will not tell you: the label "PFOA-free" does not mean PFAS-free.
PFOA was phased out of manufacturing, but many companies replaced it with GenX and other short-chain PFAS compounds that serve the same purpose in the production process. These newer chemicals are less studied, but early research suggests they carry similar health concerns.
What to look for instead:
- ✅ "PFAS-free" — means no per- or polyfluoroalkyl substances of any kind
- ✅ "PTFE-free" — means no Teflon-type non-stick coating at all
- ⚠️ "PFOA-free" — only means one specific chemical was removed; other PFAS may still be present
- ❌ "Non-toxic coating" — vague marketing term with no regulatory definition
The Three Safest Air Fryer Materials
If you want to completely avoid PFAS concerns, look for air fryers that use one of these three materials for food-contact surfaces:
1. Glass (Safest Option)
Glass is 100% inert and non-reactive. It cannot leach chemicals into your food at any temperature. Borosilicate glass (the same material used in laboratory equipment) is especially durable and resistant to thermal shock.
Advantages: - Zero chemical leaching — nothing transfers to food - Transparent — you can see food cooking without opening the unit - Dishwasher safe and easy to clean - Scratch-resistant and long-lasting
Disadvantages: - Heavier than plastic or metal alternatives - Can shatter if dropped on hard surfaces - Fewer model options currently available in Australia
2. Stainless Steel (Most Durable)
High-quality stainless steel (look for 18/8 or 18/10 grade) is extremely durable and does not require any non-stick coating. It has been used in professional kitchens for decades.
Advantages: - Incredibly durable — will not chip, peel, or degrade - No coatings to worry about at all - Handles very high temperatures without any concern - Can be scrubbed vigorously for cleaning
Disadvantages: - Not naturally non-stick — food may stick without oil - Can leach trace amounts of nickel and chromium (a concern only for people with severe metal sensitivities) - Requires more oil or parchment liners for best results
Pro tip: If you already own a traditional air fryer, you can retrofit it with stainless steel or silicone basket liners to create a barrier between your food and the non-stick coating.
3. Ceramic Coating (Most Convenient)
Ceramic coatings are silica-based (made from sand, essentially) and provide a non-stick surface without PTFE. They are the most popular PFAS-free alternative because they feel and perform similarly to traditional non-stick.
Advantages: - Genuinely non-stick without PFAS or PTFE - Lightweight and easy to handle - Often more affordable than glass or stainless steel options
Disadvantages: - Durability is the weak point — ceramic coatings can chip, scratch, and lose non-stick properties within 1-2 years - Not all ceramic coatings are equal — some cheap versions may contain undisclosed additives - Once damaged, the underlying aluminium can leach into food - Verify the brand explicitly states "PFAS-free," not just "ceramic"
How to Check If Your Current Air Fryer Is Safe
Already own an air fryer and want to assess it? Here is a practical checklist:
Immediate Red Flags (Replace the Basket) - Non-stick coating is **visibly peeling, flaking, or chipped** - You can see bare metal underneath the coating - The basket has deep scratches from metal utensils - The unit is more than 3-4 years old with heavy use
Check the Manufacturer's Claims 1. Visit the manufacturer's website and search for "PFAS" or "PTFE" in their FAQ or product specs 2. Look for specific certifications — not just vague "non-toxic" language 3. Contact customer support and ask directly: "Does this product contain any PFAS compounds, including PTFE, in the food-contact surfaces?" 4. Check for compliance with **California Proposition 65** and **AB1200** — brands that comply with these are generally more transparent
Practical Safety Tips for Any Air Fryer - **Never preheat an empty air fryer** for more than 3-5 minutes — empty baskets heat up faster and can exceed safe temperatures - **Use silicone or wooden utensils only** — metal utensils damage non-stick coatings - **Do not use commercial cooking sprays** — many contain lecithin and additives that degrade non-stick coatings. Use a manual oil sprayer with plain oil instead - **Hand wash gently** — avoid steel wool, harsh scrubbing pads, or abrasive cleaners on non-stick surfaces - **Replace damaged baskets promptly** — most brands sell replacement baskets separately
What About Acrylamide?
While researching air fryer safety, you may encounter warnings about acrylamide — a chemical that forms naturally when starchy foods (potatoes, bread, chips) are cooked at high temperatures. This is not specific to air fryers; it happens with any high-heat cooking method including conventional ovens and deep frying.
To minimise acrylamide formation: - Cook at 340°F (171°C) or lower when possible for starchy foods - Aim for golden yellow, not dark brown — the darker the colour, the more acrylamide - Soak potatoes in water for 30 minutes before cooking to reduce starch content - Do not overcrowd the basket — this causes uneven cooking and potential hot spots
For a deeper look at the health research, check out our article on whether air frying is healthier than traditional cooking methods.
The Bottom Line: Should You Be Worried?
Let us put this in perspective:
Air fryers are one of the healthiest cooking methods available. They use 70-80% less oil than deep frying, reduce harmful compound formation, and make it easier to cook nutritious meals at home.
The PFAS concern is real but manageable. If your air fryer is in good condition and you use it at normal temperatures (below 450°F / 232°C), the risk from PTFE coatings is low. However, if you want to eliminate the concern entirely, switching to a glass, stainless steel, or verified PFAS-free ceramic air fryer is the safest path forward.
The most important thing is to keep using your air fryer — the health benefits of cooking at home with minimal oil far outweigh the small risk from well-maintained non-stick coatings. If you are in the market for a new model, check out our best air fryer reviews and buying guide to find one that matches both your cooking needs and your safety preferences.
Frequently Asked Questions
Q: Can I still safely use my current non-stick air fryer? Yes — as long as the coating is intact and you cook below 450°F (232°C). Replace the basket if you see peeling, chipping, or deep scratches.
Q: Are more expensive air fryers safer? Not necessarily. Price does not guarantee PFAS-free materials. Check the specific materials used in food-contact surfaces rather than relying on price as a safety indicator.
Q: Do air fryer parchment liners help with safety? Yes — parchment liners create a physical barrier between food and the non-stick coating. They also make cleanup easier and extend the life of your basket.
Q: Is air frying safer than using a non-stick frypan? Generally comparable. Both use PTFE coatings at similar temperatures. However, frypans on a stovetop can more easily be overheated above 500°F (260°C), while most air fryers have built-in temperature limits that prevent this.
Q: What temperature should I avoid exceeding? Keep your air fryer below 450°F (232°C) for maximum safety with non-stick coatings. Most air fryer recipes work perfectly between 350°F (177°C) and 400°F (204°C) — check our cooking times cheat sheet for specific foods.
