Cooking for one changes what you actually need from an air fryer. A 6L family-size drawer sitting half-empty on a small counter is wasted space, but go too small and you’re doing batches for what should be one meal. After comparing the current UK lineup on real specs and genuine owner reviews rather than marketing copy, three models stand out for solo cooking in a small kitchen – each at a different size and price point, so it comes down to how much counter space you have and whether you ever cook for someone else too.
At a glance
- Best overall for one: COSORI Air Fryer 4.7L, 9-in-1 – the size sweet spot, rated for 1-4 people, with a genuine track record (35,000+ ratings)
- Most compact / smart control: Cosori Lite Smart Air Fryer 3.8L – smaller footprint, app control if you want it, simple manual use if you don’t
- If you want headroom: Cosori TurboBlaze 6L – still fits a small kitchen but has enough room for batch-cooking a few days at once or the odd guest
- Watch out for: a noticeable plastic smell on first use is a recurring theme across all three brands’ new units – run the first cook empty or with a window open
COSORI Air Fryer 4.7L, 9-in-1 Compact
This is COSORI’s best-selling model on Amazon UK and it’s easy to see why for a solo kitchen. The 4.7L basket is specifically sized for 1-4 people, with the brand quoting enough room for 12 chicken wings, a 2.25kg whole chicken, or 1.8kg of chips in one go – more than enough for one person’s dinner with leftovers to spare. It runs at up to 230°C on a tempered glass digital display, with nine function keys (chicken, fries, frozen, steak, seafood, veggies, reheat and shake among them) plus a cookbook and free app for anyone who wants more recipe ideas.
Genuine owner reviews back up the size claim: multiple reviewers specifically bought this after finding a bigger air fryer or oven wasteful for one or two portions, and the removable non-stick basket is widely described as easy to clean by hand or in the dishwasher.
It’s not flawless. Several reviewers report a strong plastic smell for the first hour or two of use, with one recommending running it outdoors the first time if possible. Another detailed review described a genuinely mixed experience getting consistent results across different recipes – chips overcooked on a first attempt, bhajis needing several tries to get right – which is a fair reminder that air fryers have a learning curve and recipe times online don’t always match your specific unit.
Cosori Lite Smart Air Fryer 3.8L
Slightly smaller than the 4.7L model, this is COSORI’s Amazon-exclusive smart edition, and it won an iF Design Award for its look. The 3.8L basket fits up to four portions and reaches the same 230°C ceiling, with the same CrispFit heating approach and overheat protection built in. What sets it apart is the VeSync app, which lets you start, stop and monitor cooking from your phone and connects to Google Assistant if you want hands-free control – genuinely useful if you’re doing something else in another room while dinner cooks.
The dishwasher-safe basket and crisper plate have silicone corners for a secure grip when removing food, and the nine one-touch presets cover the same everyday basics (chicken, fries, bacon, steak, veggies). If you don’t want the smart features, everything works fine as a straightforward manual air fryer too – the app is additive, not required.
The trade-off for the smaller basket is less room to batch-cook, so if you regularly prep two or three days of food at once, this is the one to size up from.
Cosori TurboBlaze 6L
This is the largest of the three at 6L, officially rated for 3-6 people, but it’s worth including for anyone living alone who still wants the option to cook for a partner occasionally or batch-cook a few meals in one go without running the fryer twice. TurboBlaze technology uses five automatic fan speeds that adjust airflow depending on the cooking mode, and COSORI quotes cooking up to 46% faster and using up to 64% less energy than a conventional oven. It has nine functions in one unit, including proof and dehydrate alongside the usual air fry, roast, grill and bake, with 117 recipes and 96 cooking charts included.
Real owner feedback is strong here: reviewers who upgraded from a smaller COSORI model describe it as noticeably quicker to cook and quieter than comparable machines, with one long-term review specifically praising the solid feel of the grill tray. The genuine downsides worth knowing about: a couple of owners noted the non-stick coating on the tray showing early signs of wear despite careful cleaning, and more than one mentioned a noticeable smell from the unit during its first few uses that settles down after that. There’s also no full power-off switch, so it stays in standby between uses rather than fully disconnecting.
How to use any of these well
Don’t overfill the basket – a single, loosely spread layer is what actually gets you the crispy result air fryers are known for, and cramming in more food just steams it instead. Shake or flip halfway through for anything that benefits from even browning, and start new recipes 2-3 minutes under the time you’d expect, checking and adding more rather than overshooting on the first go. If your unit smells strongly of plastic when new, run it empty for 10-15 minutes with a window open before cooking anything in it.
Cleaning and safety
All three baskets here are dishwasher-safe, though most owners say a quick hand wash with warm soapy water is just as easy given how little residue air frying leaves compared to deep frying. Let the unit cool fully before cleaning, avoid abrasive scourers on the non-stick coating since that’s what tends to wear out first, and keep the air vents clear during cooking so the fan can circulate properly.
FAQ
Is a 3.8-4.7L air fryer really enough for one person?
Yes for most meals, and it leaves room for a second portion or side dish alongside your main. If you regularly cook big batches to freeze, sizing up to 5.5-6L gives you more headroom without taking over a small counter.
Why does a brand new air fryer smell of plastic?
It’s the manufacturing residue and coatings burning off on first use, and it’s common across brands, not a fault. Running it empty for 10-15 minutes before the first real cook, ideally with a window open, usually clears it within one or two uses.
Do I need the app features on a smart air fryer?
No. On the Cosori Lite, the app adds phone control and Google Assistant integration, but every core function works fine from the unit’s own touch panel without ever opening the app.
What’s the actual difference between these three models?
Mostly basket size and price point: the 3.8L Lite is the smallest and adds app control, the 4.7L is the size most owners say suits 1-2 people best, and the 6L TurboBlaze trades a bit of counter space for genuine batch-cooking room and slightly faster cooking.
The verdict
For most people cooking solo in a UK kitchen, the COSORI 4.7L 9-in-1 is the easiest recommendation – it’s sized correctly for one to two portions, has a genuine multi-year track record on Amazon UK, and doesn’t need an app to work well. Step down to the 3.8L Lite if counter space is really tight and you like the idea of phone control, or step up to the 6L TurboBlaze if you’d rather batch-cook every few days than air fry every evening.
COSORI Air Fryer 4.7L, 9-in-1 on Amazon UK
