The Ninja Foodi OP350UK is a 6-litre multi cooker designed to replace several separate appliances with one compact unit. It pressure cooks, air fries, grills, slow cooks and more, aiming to handle everything from weeknight curries to Sunday roasts.
Ninja has a strong reputation for powerful, no-nonsense kitchen kit, and this model continues that trend with a generous capacity and a 1460-watt heating system. It’s positioned as a solid mid-range choice: not the cheapest multi cooker you can buy, but packed with more cooking options than basic models.
With a 4.8 out of 5 rating from over 300 reviews, it’s clearly well liked by owners, especially for its versatility and the way it delivers crisp results that traditional slow cookers and pressure cookers can’t manage alone.
The Ninja Foodi OP350UK is ideal for families and keen home cooks who want to simplify mealtimes without sacrificing variety. The 6-litre capacity is well suited to households of three to five people, easily handling a whole chicken, big stews or batch cooking for the freezer.
It’s a strong fit if you’re short on worktop space and don’t want separate gadgets for air frying, slow cooking and pressure cooking. One appliance does the lot, which is handy in smaller kitchens or open-plan spaces where clutter is a concern.
This model suits confident cooks and enthusiastic beginners alike. The clear button controls and LCD display keep things approachable, while features like TenderCrisp and the multiple cooking functions give more experienced users room to experiment.
If you only need a very simple slow cooker and rarely try new recipes, this may be more machine than you strictly need. But if you’re replacing an ageing slow cooker and fancy air frying and pressure cooking in the same footprint, it’s an excellent all-rounder.
The 6-litre capacity hits a sweet spot: big enough for family meals and batch cooking, but still manageable to lift, clean and store. It’s particularly good for one-pot dishes, from pasta bakes to full roast chicken dinners.
Nine cooking settings, including air fry, grill, slow cook and pressure cook, make this far more versatile than a standard slow cooker. You can sear, pressure cook to lock in moisture and then finish with a crisp top without switching appliances.
Ninja’s TenderCrisp technology is a genuine highlight, combining pressure cooking with a finishing crisp, so you get tender insides with a golden, crunchy exterior. It’s excellent for chips, chicken and roasted veg.
Practical touches such as auto shut-off, a keep warm function and dishwasher-safe components make day-to-day use and clean-up noticeably easier. Owner feedback is very strong, which supports its reliability and overall ease of use.
At 6 litres, this won’t suit very large households who regularly cook for big gatherings; you may find yourself working in batches for bigger occasions.
The 1460-watt power rating is typical for this kind of multi cooker, but it does mean you’ll want to be mindful of running other high-draw appliances on the same circuit in older homes.
There’s no glass lid included, so you can’t easily see into the pot while slow cooking without lifting the lid and letting heat escape. Some users may miss that visual check-in.
Finally, the combination of pressure cooking and air frying functions means the unit is fairly substantial in size. It will demand a decent bit of counter or cupboard space, which might be a compromise in compact kitchens.
Living with the Ninja Foodi OP350UK is largely about convenience. The front panel uses clearly labelled buttons and an LCD display, so choosing a cooking mode, time and temperature is straightforward even if you’re new to multi cookers.
The 6-litre removable pot is roomy without feeling unwieldy. It lifts out easily for serving at the table or draining, and because it’s dishwasher safe, you can avoid lengthy handwashing after messy dishes like stews and pasta bakes.
Auto shut-off and the built-in timer mean you can set it going and get on with other jobs, while the keep warm function helps prevent that frantic last-minute rush if someone’s running late for dinner. The reversible rack and Cook & Crisp basket add flexibility, letting you lift food out neatly or cook different elements at once.
You will need to accommodate its footprint on the worktop, and like most pressure/air fry combos, the lid needs clearance to open. But once you’ve given it a home, it quickly becomes the go-to for one-pot meals and healthier “fried” foods with less oil.
With 1460 watts of power behind it, the OP350UK heats up quickly and maintains steady temperatures across its different modes. Pressure cooking significantly cuts down cooking times for tougher cuts of meat and dried pulses, while still delivering tender results.
The 6-litre capacity is well judged for everyday family cooking, giving enough space for whole joints, big curry nights and generous batches of soup or chilli. The included Cook & Crisp basket and reversible rack expand how you can layer and separate ingredients, which is especially useful for air frying and roasting.
TenderCrisp technology is one of its standout features. You can pressure cook to keep meat juicy and then switch to a crisping finish so you get the texture you’d expect from an oven or fryer, all in one pot. It’s particularly impressive for roast chicken, where you want moist meat and properly browned skin.
Beyond pressure and crisping, the OP350UK handles slow cooking, pasta bakes and everyday oven-style dishes with ease. The simple button controls and timer make it easy to replicate favourites, while the keep warm and auto shut-off functions provide reassurance if you’re prone to getting distracted.
For a multi cooker in this class, the overall feature set is strong. You’re getting a true multifunctional cooker rather than a basic slow cooker with a couple of extras, which is reflected in how many different meal types it can comfortably handle.
At its current price, the Ninja Foodi OP350UK sits in the mid-range to upper mid-range of multi cookers, but the specification goes further than many entry-level models. You’re paying for a genuinely multifunctional machine that combines pressure cooking, air frying, grilling and slow cooking in one.
When you factor in that it can realistically replace a separate slow cooker and air fryer, and potentially reduce your reliance on the main oven, it starts to look like good long-term value, especially for busy households that cook from scratch most days.
The strong 4.8 out of 5 owner rating from a large number of reviews suggests that buyers broadly feel they’ve had their money’s worth. Add in a 2-year manufacturer warranty (with registration) and the value proposition is compelling if you’ll make use of the full range of cooking modes.
If you only plan to slow cook occasionally or already own a dedicated air fryer you love, there are cheaper, more basic options. But for anyone wanting a single, capable workhorse appliance, the OP350UK justifies its price well.
The Ninja Foodi OP350UK 6 Litre Multi Cooker is a highly capable all-rounder that can seriously streamline mealtimes. Its combination of pressure cooking, air frying and slow cooking, plus features like TenderCrisp, makes it far more versatile than a standard slow cooker or basic multi cooker.
It’s best suited to families and busy couples who cook regularly and want to cut down on both cooking time and the number of appliances cluttering the kitchen. The generous capacity, dishwasher-safe parts and reassuringly simple controls all add to its everyday appeal.
If space is extremely tight or you only need occasional slow cooking, this might feel like overkill. But for most people wanting a single, powerful workhorse that delivers tender, crisp, reliable results, the Ninja Foodi OP350UK is an excellent choice that earns its place on the counter.
