Ninja Foodi PossibleCooker 8L Review: a big, flexible pot that mostly replaces your oven

I’ve been using the Ninja Foodi PossibleCooker 8L (the Stone Gold one from Amazon) for a few weeks, and it’s gone from “nice gadget” to “lives on the counter”. I bought it mainly to replace an old basic slow cooker and cut down on how often I use the oven. Family of four here, plus occasional guests, so the 8L size was a key point for me.

In day-to-day use, the main thing I noticed is that it really does cover several jobs: slow cooker, big pot for stews and curries, and a kind of mini-oven for simple bakes. I’ve done chilli, pulled pork, chicken thighs, a shepherd’s pie base, and even a basic banana bread in it. It doesn’t magically cook for you, but it saves a lot of faff with pans and washing up.

It’s not perfect though. The unit is fairly heavy, the low slow-cook setting feels gentler than on my old cheap slow cooker, and you need to learn how it heats or you’ll end up with slightly watery dishes or over-browned bottoms when baking. It’s one of those products where the first two or three meals are a bit of trial and error, then it clicks.

If you want a straight plug-and-forget slow cooker, there are cheaper and simpler options. If you like the idea of searing, simmering and then slow cooking all in one pot, and you cook in big batches, this thing starts to make sense. That’s basically how I ended up using it most days: brown on Sear/Sauté, dump everything in, slow cook, then use Keep Warm until everyone gets home.

On value, I’d put the Ninja Foodi PossibleCooker in the “good but not dirt cheap” category. It costs more than a basic slow cooker, but it’s still under a lot of the full-blown pressure multi-cookers and big-brand all-in-one machines. Given what it replaces – slow cooker, big pot, some oven jobs – I think the price is reasonable if you actually use the features regularly.

For context, my old slow cooker was a simple on/off model with low/high and a ceramic pot. It was fine, but I always had to brown meat in a separate pan, and cleaning up after a big stew meant at least two big items to wash. With this Ninja, I genuinely use fewer pots and spend less time at the hob. That has a value on busy weeknights. Also, the fact that you can buy spare pots from Ninja is a plus: if you cook a lot, you could even keep one pot in the fridge with leftovers and still have a clean one ready.

Where the value is a bit more debatable is if you only plan to use it as a slow cooker a few times a month. In that case, a cheaper 3.5–6L basic slow cooker would probably be enough, and you’d save money. The 8L capacity is great for big families or batch cooking, but it’s overkill for someone cooking small portions or living alone, unless you’re really into meal prep and freezing.

Overall, I’d say it’s good value for money if you: cook in batches, like one-pot meals, and will actually use Sear/Sauté and the other modes. If you just want to dump ingredients and walk away without ever touching settings or thinking about liquid amounts, you might be better off with a cheaper, simpler option and accept a bit more faff with extra pans.

Design-wise, the PossibleCooker is basically a large rectangular base with a removable pot and a glass lid. The Stone Gold colour is actually nicer in real life than in the pictures: it’s not flashy, more of a muted beige-gold that blends in fine with other appliances. If you already have Ninja gear in similar colours, it matches well. It looks like a proper bit of kit, not a cheap plastic slow cooker.

The downside is the size and weight. The unit weighs about 5.5 kg without food, and it’s big. If you have a small kitchen or limited counter space, this is something you either leave out permanently or you’ll get annoyed dragging it in and out of cupboards. I ended up clearing a permanent spot for it, which says a lot about how often I use it, but you do need to plan for that space.

The integrated spoon on the lid is a nice touch. It clips into the handle, so it’s always there when you need to stir. The lid itself feels sturdy, and you can see what’s going on inside without lifting it every five minutes. The handles on the pot are solid enough to move it, but keep in mind: when it’s full and hot, you need two hands and a bit of care. This is not a light casserole dish.

The control panel is clean: touch buttons, simple icons, no over-complication. The screen is bright enough to read even in a well-lit kitchen. The only minor gripe is that the glossy front panel shows fingerprints and splashes quite easily, so if you’re fussy about marks you’ll be wiping it down a lot. Overall, the design feels practical and solid, but definitely not compact. If you’re tight on space, that’s the main design drawback.

In terms of everyday comfort, the PossibleCooker is a mix of very handy and slightly annoying. On the handy side, the one-pot workflow is a big win: brown your meat, add veg and liquid, switch mode, and forget about it for hours. Less washing up, fewer pans, and you’re not hovering over the hob all evening. For weeknight family cooking, that’s honestly the main reason I keep reaching for it.

The controls are simple: big touch buttons, clear labels, and an automatic switch to Keep Warm when the cooking time is done. That Keep Warm mode is actually useful – I’ve had stews sit there for an extra hour or two without drying out, which is great if people eat at slightly different times. The glass lid lets you check on things without losing heat, so you don’t end up constantly lifting it like with some opaque slow cookers.

On the downside, the weight and bulk are noticeable. Moving it when it’s empty is fine; moving it when the pot is full of hot food is a different story. You really want it to live close to where you serve, or you’ll be carrying a heavy, hot pot across the kitchen. Also, if your worktop is low or you have back issues, constantly bending over a large heavy unit isn’t ideal. It’s not ridiculous, but it’s something to think about.

Cleaning is decent: the non-stick pot usually just needs a quick soak and a soft sponge, or you can stick it in the dishwasher. Same for the lid. The base obviously can’t go in water, but a wipe-down handles splashes. The only small annoyance is storing the steaming rack and spoon if you’re tight on drawer space, but that’s minor. Overall, in daily life, it’s very practical if you cook in batches and have the counter space; less so if you’re in a tiny flat kitchen or hate heavy gear.

The main selling point in terms of materials is the removable non-stick pot that’s also oven-safe up to 260°C. This means you can start something on the base (searing or simmering) and then move the whole pot into the oven if you want a different finish. I actually tested this with a chicken and veg tray-style bake: browned the chicken on Sear/Sauté, added potatoes and veg, then moved the pot straight into the oven for crisping. No issues at all, and the pot coating held up fine.

The pot has a ceramic-style non-stick coating. Food doesn’t cling much, especially on slow cook and simmer. Even after a sticky pulled pork session and a tomato-heavy chilli, everything came off with a soft sponge and hot soapy water. You can put the pot and lid in the dishwasher, which I did a few times. So far, the coating still looks fine, no peeling or weird marks, but I wouldn’t go at it with metal tools if you want it to last.

The glass lid is thick and feels sturdy. The rubber seal around the edge seems decent quality and sits well on the pot, keeping moisture in. That does mean your dishes can end up a bit more liquid than in an oven dish, so you sometimes need to reduce the sauce at the end on Sear/Sauté. The steaming rack is basic metal, nothing fancy, but it does the job for veg or lifting a joint of meat off the base.

Overall, the materials feel a step up from budget slow cookers. The base unit is mostly plastic on the outside with metal inside where it matters, and it doesn’t feel flimsy. Heat distribution seems even enough, thanks to the side and bottom heating elements. I wouldn’t call it bulletproof – it’s still a coated pot, so you need to treat it reasonably well – but for the price, the quality is pretty solid. If you’re upgrading from a £25 slow cooker, you’ll feel the difference straight away.

I obviously can’t test multi-year durability in a few weeks, but I can compare it to other slow cookers and multi-cookers I’ve had. The overall build quality feels solid: nothing rattles, the lid fits properly, the handles don’t feel flimsy, and the base doesn’t flex when you move it. The heating seems consistent; I haven’t noticed any dead spots or weird temperature swings so far.

The main question mark for long-term durability is the non-stick coating on the pot. That’s always the weak point on this type of device. After several uses with tomato sauces, sticky marinades, and a couple of oven sessions at higher heat, the coating on mine still looks intact. Food still slides off fairly easily. I’ve only used silicone or wooden utensils inside, and I avoid stacking metal pans on top of it in the cupboard. If you treat it like a non-stick frying pan you actually care about, it should be fine.

One thing I like is that replacement pots are available from Ninja at a reasonable price. That’s a big plus: if you eventually scratch or wear out the coating, you don’t have to bin the whole unit. That gives me a bit more confidence in the purchase, because realistically, coatings don’t last forever if you use them a lot.

The electronics and controls feel basic but sturdy. No wobbly dials to break, just touch buttons. The cord is standard and not super long, but that’s normal. Given Ninja’s general track record and the Amazon reviews (4.5/5 from over 100 users), I’d say durability is good for the price bracket, as long as you’re not attacking the pot with metal tongs and scouring pads every weekend. It’s not indestructible, but it doesn’t feel cheap or disposable either.

Performance is where this thing is interesting. The triple fusion heat (base, sides, and steam) actually makes a difference compared to old-school slow cookers that only heat from the bottom. When you use Sear/Sauté on high, it genuinely feels like using a decent hob: you can properly brown mince, sear chicken thighs, and get onions sweating down without waiting forever. For me, that’s the biggest upgrade over a basic slow cooker where you had to dirty a separate pan first.

On Slow Cook, the behaviour is a bit different from cheaper units. The Low setting is very gentle. If you just dump fridge-cold ingredients in and start on Low, it can take a long time to get up to temperature, which is probably why some people say their food was barely warm. What works better – and matches what some Amazon reviewers said – is this pattern: sear on Sear/Sauté until everything is hot and lightly bubbling, then switch to Slow Cook Low for 6–8 hours. Doing that, my stews and curries came out fully cooked and tender, no problem.

High slow cook is more aggressive. I used it when I only had 4–5 hours and wanted something done by dinner. For a beef stew, 1 hour on Sear/Sauté to get it going, then 4 hours on High slow cook gave me soft meat and well-cooked veg. You just need to watch liquids: this unit holds moisture well, so you can easily end up with more sauce than you planned. I now reduce the liquid by about 20–25% compared to oven recipes, then finish with a quick simmer on Sear/Sauté to thicken if needed.

Other modes: Bake works, but the bottom does run hotter, so things like banana bread can brown a bit more on the base. Using the included rack to lift your tin off the bottom helps. Steam is straightforward and does veg or fish nicely, but it’s not dramatically better than a normal steamer, just bigger. Simmer is handy for keeping things gently bubbling without going full boil. Overall, performance is strong once you learn its quirks, but don’t expect perfect results on the very first try without adjusting liquids and preheating properly.

Out of the box, you get the main unit, an 8L removable non-stick pot, a glass lid with an integrated spoon, a steaming rack, and a small recipe guide. No fancy extras beyond that, though Amazon buyers sometimes mention a free apron and silicone mitts – I wouldn’t count on those as core parts of the product, more like a bonus if you get them. The pot is big enough for large joints of meat, whole chickens, or 2–3 days’ worth of batch cooking for a family.

The PossibleCooker has 8 main modes: Slow Cook, Sear/Sauté, Steam, Braise, Simmer, Bake, Prove, and Keep Warm. In practice, the ones I used the most were Sear/Sauté, Slow Cook, Simmer, and Keep Warm. Steam and Bake are handy but more niche. I haven’t used Prove much except once for a basic bread dough, and it did work, but it’s not why I bought it.

The controls are touch-based, clearly labelled and pretty straightforward: choose the function, adjust time and temperature, press start. No complicated menus. There’s a small display that shows time and mode, and it automatically flips to Keep Warm after some modes finish, which is actually useful if your schedule is messy. The unit says “Hi” and “Bye” on the screen which is slightly cheesy, but harmless.

In terms of what it replaces, for me it has basically taken over from: my old slow cooker, a big soup pot, and some of the oven jobs like braising and reheating big dishes. It does not fully replace an oven or an air fryer, but if you mostly cook stews, curries, casseroles, pulled meats and the odd bake, it covers a lot. That’s where its value is: fewer pans, fewer dishes, and less time standing at the hob.