Air fryers are everywhere for a reason: they make food crispy, fast, and surprisingly forgiving like a tiny convection oven that’s permanently in a good mood. But if you’ve ever bought a kitchen gadget that ended up living in a cupboard next to the toastie maker… yeah, you’ll want to choose wisely and learn a few simple tricks.
In this guide, I’ll walk you through what an air fryer is, how to pick the right one, how to use it properly, and what to cook first all in plain English, no chef ego included.
What an air fryer actually is (and what it isn’t)
An air fryer is basically a compact countertop cooker that blasts hot air around your food using a fan. That fast-moving heat helps brown and crisp the outside especially if you use a tiny bit of oil.
What it’s not: a magical health portal where chips become salad. It still cooks food. It just does it more efficiently than many ovens for smaller portions.
“Air fryer” vs convection oven: same idea, different vibes
A convection oven also uses a fan to move hot air around. The key difference is size. Air fryers have a smaller cooking chamber, so they:
- heat up quicker
- cook faster (often)
- can crisp better because air circulates tightly around the food
Think of it like this: an oven is a big concert hall. An air fryer is a small club. Same music, different energy.
Why people love air fryers (the real benefits)
Speed: why weeknight dinners suddenly feel doable
Most air fryers preheat quickly (sometimes you don’t even need to preheat), and because the heat is concentrated, cooking times are shorter for many everyday foods. If you’re the kind of person who forgets to start dinner until you’re already hungry… an air fryer is basically a life coach.
Crunch: how you get crisp without deep frying
Crispiness is mostly about two things:
- surface moisture evaporating
- browning (Maillard reaction fancy name, delicious result)
An air fryer is great at both, especially when you:
- pat food dry
- use a light oil spray
- give it space (don’t overcrowd)
Energy use: why smaller cookers can be cheaper to run
Because an air fryer heats a smaller space than an oven, it often uses less energy for small-to-medium portions. It’s not always cheaper for big family trays—but for “I need dinner for two” it can be a solid win.
How to choose an air fryer that you won’t hate after a week
Buying an air fryer is weirdly emotional. You think you’re choosing a kitchen appliance… then you realise you’re choosing your future personality. (“I’m an air-fryer person now.”)
Here’s what actually matters.
Capacity: litres vs usable space (the truth)
Air fryer capacity is usually marketed in litres, but litres don’t always reflect real-world usefulness. What you really care about is basket surface area (how much food can sit in a single layer).
If two air fryers both claim “7L,” one might be wide and shallow (great), the other tall and narrow (less great for crisping). When in doubt, prioritise wider baskets.
Quick sizing cheat-sheet (1–2, 3–4, 5+ people)
- 1–2 people: ~3–5L (or compact dual-zone)
- 3–4 people: ~5–8L (single wide or dual drawer)
- 5+ people: ~8–10L+ (or consider oven + air fryer combo)
Basket styles: single, dual drawer, and “mega zone”
- Single basket: simplest, usually best value, great for big items (whole chicken pieces, bigger portions).
- Dual drawer: cook two foods at different temps/times handy for “chips + chicken” households.
- Mega zone / split basket: flexible; can be one big zone or divided.
If you cook multiple things at once, dual drawers feel like cheating (in a good way).
Power (wattage): what it changes and what it doesn’t
Air fryer wattage often ranges roughly from ~1200W to ~2000W+. Higher wattage can mean:
- faster heat recovery
- stronger browning
- more consistent crisping on larger loads
But wattage alone doesn’t guarantee better results. Basket design and airflow matter just as much.
Controls: manual dials vs digital presets
- Manual: fewer things to break, easier for beginners, but less precise.
- Digital: more precise temps/timers, presets can be convenient (though you’ll probably ignore half of them).
If you love “set it and forget it,” digital is nice. If you want “turn knob, receive chips,” manual is perfect.
Features that matter (and the ones that don’t)
Worth caring about:
- non-stick basket quality (and replacement availability)
- dishwasher safe parts (check reviews some “dishwasher safe” coatings suffer)
- a wide basket and solid airflow
- clear temperature range and reliable timer
Less important (usually):
- 20+ presets
- app connectivity (unless you genuinely love smart appliances)
How to use an air fryer (without drying everything out)
The golden rules: don’t overcrowd, shake, and oil smart
If your air fryer could talk, it would repeat these three sentences like a mantra:
- Don’t overcrowd. Air needs space to circulate.
- Shake/flip halfway. Crisping is a two sided relationship.
- Use oil strategically. A little oil helps browning a lot.
Pro tip: an oil spray (or brush) gives better coverage than pouring oil, and it’s easier to control.
Do you need to preheat?
Sometimes yes, often no. Here’s a simple approach:
- For frozen foods, chips, and anything you want super crisp: a short preheat helps.
- For chicken pieces and veg: not always necessary, but it can improve browning.
If your air fryer has a preheat mode, use it when you care about texture. If you don’t, skip it and live your life.
Air fryer cooking times: how to stop guessing
Air fryer cooking times vary by model, load size, and food thickness. But you can stop guessing with two tools:
- a meat thermometer (seriously, it’s a game-changer)
- a habit of checking 2-4 minutes early the first few times you cook something
Also: take “recipe times” as a starting point, not gospel.
Beginner-friendly air fryer foods to try first
Chips/fries that actually crisp
For homemade chips:
- cut evenly
- soak/rinse to remove excess starch
- dry thoroughly
- lightly oil
- cook in batches (this is the hardest part emotionally)
For frozen chips: air fryers are basically their natural habitat.
Chicken (wings, thighs, nuggets)
Chicken is where air fryers shine. You get that crispy outside without deep frying, and it’s quick enough for a weekday.
- Wings: crisp, fast, party level satisfaction
- Thighs: forgiving, juicy, hard to mess up
- Nuggets: kid approved and dangerously easy
Veg (broccoli, carrots, Brussels sprouts)
If you’ve ever tried to “eat healthier” and ended up sad-chewing steamed broccoli… air frying veg is the upgrade.
Add:
- a little oil
- salt + garlic powder
- optional parmesan or chilli flakes
Suddenly vegetables stop feeling like a punishment.
Frozen foods (and why they’re perfect in an air fryer)
Frozen food is already designed for crispy cooking. The air fryer just does it faster and often better than an oven. Think:
- spring rolls
- hash browns
- fish fingers
- frozen battered items (check your model; some do these brilliantly)
Air fryer vs oven: when the oven still wins
Air fryers are amazing, but they’re not the answer to everything.
Your oven often wins when:
- you’re cooking for a big family in one go
- you want to bake multiple trays
- you’re doing large roasts or big casseroles
A good rule: air fryer for speed + crisp, oven for volume.
Are air fryers healthy? Let’s keep it real
Air fryers can be healthier than deep frying because you usually use less oil. Less oil can mean fewer calories but health isn’t just about oil quantity.
Air-fried food is still food. The “health upgrade” usually comes from:
- cooking more at home
- using lean proteins
- air-frying veg instead of always frying snacks
If your air fryer helps you cook quick, balanced meals, it’s a win. If it becomes a frozen beige-food machine… well, it’s still tasty, but maybe add a salad sometimes.
For general healthy eating guidance, you can reference reputable sources like the UK NHS healthy eating hub: NHS – Eating a balanced diet.
Cleaning and maintenance: the part nobody posts on Instagram
Daily clean vs deep clean
Daily clean (fast):
- let it cool
- remove basket/tray
- wash with warm soapy water (or dishwasher if genuinely safe)
- wipe inside with a damp cloth
Deep clean (weekly-ish):
- clean the heating area (carefully)
- remove stuck on grease
- check vents for dust buildup
If you keep up with quick cleaning, deep cleaning becomes a 10-minute task instead of a full relationship test.
How to avoid the “burnt oil” smell
That smell usually comes from leftover grease being reheated. Fix it by:
- cleaning after greasy foods
- using fresh oil (not old, smoky oil)
- avoiding aerosol sprays that can damage some non stick coatings (check your manual)
Air fryer safety tips (simple, but important)
- keep it on a heat-resistant, flat surface
- don’t block the vents
- don’t overfill with oil (it’s not designed for deep frying)
- avoid parchment that can fly into the heating element unless it’s weighed down with food
- use proper internal temperature checks for chicken and other meats
For UK food safety basics, see: Food Standards Agency.
Useful accessories (what’s worth buying)
Liners, racks, thermometers, and silicone tools
Worth it:
- meat thermometer (most valuable accessory, hands down)
- silicone tongs (protect non stick coating)
- rack (for wings/bacon more airflow)
- reusable silicone liner (easy cleanup, but can reduce airflow slightly)
Nice-to-have:
- small baking tins for muffins/mini cakes
- skewers for kebabs
- oil sprayer
Mini troubleshooting: common problems and quick fixes
- Food isn’t crispy: overcrowding, too wet, not enough heat, or needs a shake/flip.
- Food is dry: too hot or too long reduce temp slightly and check earlier.
- Uneven cooking: load size too big; cook in batches or rearrange halfway.
- Smoke: greasy leftovers or high fat foods clean basket and lower temp a bit.
- Weird chemical smell: can happen during first uses run a few empty hot cycles and wash everything.
Conclusion
An air fryer won’t cook dinner for you but it will make cooking feel faster, easier, and honestly more fun. Choose one with a realistic capacity, a basket style that fits your routine, and don’t forget the golden rules: space, shake, and a little oil. Once you nail a few go to meals (chips, chicken, veg), you’ll wonder how you ever waited for the oven to preheat like it was 2006.
If you want to go deeper next, add internal guides like Air Fryer Cleaning Checklist, Air Fryer Cooking Times Chart, or a roundup like Best Air Fryers (UK) – Top Picks for Every Budget.
FAQ
Are air fryers cheaper to run than ovens?
Often, yes for small to medium portions. Because an air fryer heats a smaller space and usually cooks faster, it can use less energy than firing up a full oven. But if you’re cooking a big family meal in multiple batches, the oven may be more efficient. Think: air fryer for quick wins, oven for big volume.
Do I need to preheat my air fryer?
Not always. Many foods cook fine from cold especially veg and chicken pieces. Preheating can help when you want maximum crisp (chips, frozen snacks, breaded foods). If you’re unsure, do a quick 2-4 minute preheat and compare results once you’ll quickly learn what your model likes.
What’s the best air fryer capacity for a family of four?
A good starting point is 5-8 litres, but don’t obsess over litres look for a wide basket so food can sit in a single layer. For families, a dual drawer air fryer can be brilliant if you often cook two different foods at once (like chicken + chips).
Why is my food not getting crispy in the air fryer?
Usually it’s one of these: overcrowding, food being too wet, temperature too low, or forgetting to shake/flip halfway. Pat food dry, cook in batches, add a light oil spray, and increase temperature slightly if needed. Crispiness loves airflow give it room to work.
What’s the easiest way to clean an air fryer?
Clean it while it’s still slightly warm (not hot). Wash the basket/tray with warm soapy water, wipe the interior, and remove greasy buildup regularly so it doesn’t burn and smell. If you cook fatty foods often, a quick clean after each use saves you from a painful “deep clean day” later.