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9 best slow cookers, tried and tested for effortless and energy-efficient dinners

Enjoy delicious, healthy casseroles, stews and one-pot dishes without the fuss

Rachael Phillips
Friday 05 January 2024 16:45 GMT
<p>Even foods such as bread, cakes and yoghurt fall within this appliance’s repertoire </p>

Even foods such as bread, cakes and yoghurt fall within this appliance’s repertoire

Our Top Picks

Whether you love to cook or you just want the luxury of having your dinner ready when you get home from work, slow cookers are a must-have appliance for almost every kitchen.

And they’re not just for the winter weather either. While they excel in producing hearty dishes, such as stews, casseroles and soups, you can also use your slow cooker for other year-round delights, such as bread, cakes and even yoghurt.

The best slow cookers are also a great way to beat the current cost of living crisis, as they’re an extremely energy-efficient way to cook. And it’s not just your smart meter that will breathe a sigh of relief, as using a slow cooker can also reduce your grocery bill.

Cheaper cuts of meats are perfect for the slow cooker, as cooking at low temperatures over a long period of time not only tenderises the meat, but also brings out the flavour. The same goes for veggies – you can stock up on root veg that will be perfectly cooked by the time it’s served.

Slow cookers come in a variety of shapes and sizes and with different technologies. You can get ones that are the ideal size for one person, or larger versions that can feed a whole family. They also come in a variety of price ranges, so if you’re on a budget, you’ll still find a good-quality slow cooker without breaking the bank.

How we tested

We tested out some of the best slow cookers on the market. We made a variety of dishes in each appliance to assess how well they cooked the food, whether the machine was straightforward to use, its capacity and, of course, how easy cleaning and storage was.

The best slow cookers of 2024 are:

  • Best overall slow cooker – Ninja foodi possiblecooker 8-in-1 slow cooker, £129, Amazon.co.uk
  • Best budget slow cooker– Cookworks 3.5l slow cooker: £22, Argos.co.uk
  • Best slow cooker for foodies – Russell Hobbs good to go multi-cooker: £49.99, Amazon.co.uk
  • Best slow cooker for families – Kitchen Master slow cooker: £19.99, Therange.co.uk
  • Best hob-safe slow cooker– Morphy Richards sear and stew 3.5l slow cooker: £39.21, Amazon.co.uk

Ninja foodi PossibleCooker 8-in-1 slow cooker

Ninja foodi PossibleCooker 8-in-1 slow cooker
  • Best: Slow cooker overall
  • Capacity: 8l
  • Weight: 6kg
  • Dimensions: 28cm x 42cm x 29cm
  • Oven safe: Yes
  • Cooking functions: Eight
  • Dishwasher safe: Yes
  • Why we love it
    • Plenty of cooking options
    • Up to five times faster than traditional slow cooker
    • Cooks evenly
  • Take note
    • Large

Whether you’re a keen cook or you lack space and want an appliance that does as much as possible in one machine, the Ninja foodi possiblecooker 8-in-1 slow cooker is an absolute must-have item for your kitchen.

Ninja promises that it will work five times faster than a conventional slow cooker, and we couldn’t agree more – it’s so quick, you can whip up a good, healthy meal, even on a weeknight after work. The possiblecooker is also very easy to use. The control panel is clear and intuitive, which is good news because it has plenty of settings that you can play with.

Another huge plus point is that it has a removable pot, which is also oven-safe, so you really can make a good combination of meals. It’s also surprisingly light, and if you’re like us and suffer from a lack of counter space, you won’t find this a chore to lift and move around. Clean-up is also a breeze because the pot is removable and has a non-stick coating, which makes it much easier – not only that, but the parts are all dishwasher safe.

Of course, as you may notice from the name, it doesn’t just slow cook, but offers eight different cooking functions, including slow cooking, pressure cooking, searing, roasting, baking and more.

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Cookworks 3.5l slow cooker

best slow cookers cookworks 3.5l slow cooker
  • Best: Budget slow cooker
  • Capacity: 3.5l
  • Weight: 2.32kg
  • Dimensions: 33.1cm x 24.5cm x 21cm
  • Oven safe: No
  • Cooking functions: One
  • Dishwasher safe: No
  • Why we love it
    • It’s lightweight
    • Easy to use
    • Has a keep-warm option
  • Take note
    • The inner pot isnt oven-proof

This Cookworks slow cooker is perfect for couples or small families, as it has a 3.5l capacity, which makes around four generous portions. The oval shape also means it is ideal for meat lovers, as a whole chicken or a joint of meat will easily fit in.

The inner bowl is removable, so you can carry it to the dining table to serve up, and we found that despite the outside of the slow cooker getting hot, the handles remained cool enough to carry. But it is worth noting that you can’t use this inner bowl in the oven or on the hob, so you’ll need to sear your meats in a separate pan before placing them in the slow cooker.

There are three cooking temperatures: high, medium, and low. There’s also a keep-warm function, which is useful for families who don’t always have the luxury of eating together. It is a bit of a shame that the pot and lid are not dishwasher-friendly, but the ceramic is easy to clean. Plus, it’s a great price, so ideal for anyone on a budget.

  1. £22 from Argos.co.uk
Prices may vary
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Cookworks 1.5l compact slow cooker

Cookworks 1.5l compact slow cooker
  • Best: Slow cooker for couples
  • Capacity: 1.5l
  • Weight: 1.12kg
  • Dimensions: 23.3cm x 21cm x 20.3cm
  • Oven safe: No
  • Cooking functions: One
  • Dishwasher safe: No
  • Why we love it
    • It’s small, compact and lightweight
    • Easy to operate
  • Take note
    • It isn’t dishwasher-friendly

Another Cookworks model, this slow cooker is the perfect size when making dinner for just one or two people. It’s compact and will fit into any kitchen, so don’t worry if you’re tight on counter space, as you’ll hardly notice it’s there. Plus, we found this small size made it easy to store away when not in use. Despite it being lightweight, the appliance feels solid and durable. We absolutely loved that it has a glass lid, so we could peer inside and see whether our food was ready without letting all the heat escape.

It’s very basic in its design, easy to use, and has three heat settings: low, high, and warm. The keep-warm function works really well, and you’d never know that the food hadn’t just been cooked. It has an LED light, so you’ll know when it’s switched on, which is handy, especially if you’re prone to forgetting to switch off appliances.

The bowl is removable, but it’s not safe for oven use, so if you’re doing a recipe that requires you to brown off your meat before adding it, then you’ll need to do this in a separate pan. Unfortunately, it’s not dishwasher friendly, but the ceramic bowl is non-stick, so cleaning is no problem, especially if you leave it to soak for a little while before washing.

There’s no timer on this machine, but you can comfortably throw your ingredients into it in the morning and not worry about it overheating or burning your food while you get on with your day.

  1. £18 from Argos.co.uk
Prices may vary
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Russell Hobbs good to go multi-cooker

Russell Hobbs good to go multi-cooker
  • Best: Slow cooker for foodies
  • Capacity: 6.5l
  • Weight: 3.25kg
  • Dimensions: 29.9cm x 48.5cm x 24.4cm
  • Oven safe: Yes
  • Cooking functions: Eight
  • Dishwasher safe: Yes
  • Why we love it
    • Large-capacity pot
    • Removable control panel
    • Easy to use
    • Lots of cooking functions
  • Take note
    • The instructions are poor

While we appreciate slow-cooked food, there are times when we need to shake things up, which is why our tester loves this Russell Hobbs multi-cooker. There’s very little the cooker can’t do – from soup mode to making yoghurt. But when it comes to slow cooking, the appliance really performs.

We found that it heated up quickly and maintained the perfect temperature. It has a timer, too, so once your food is cooked, it will automatically switch to keep-warm mode. But you can also use the timer to delay its start, so if you want to prep your food and set it to slow cook later in the day, that’s possible too.

We found this one of the easiest machines to use – the control panel sits at the front and the buttons are clear and intuitive, which is just as well as the instruction booklet left a lot to be desired.

It is quite a large and heavy machine, but that’s mostly down to the generous 6.5l pot, which is made from durable cast aluminium. It’s probably one of the most solid slow cookers we tested – it doesn’t feel at all flimsy or as if it’s going to dent if you accidentally knock it.

To make things even easier in the kitchen, the pot comes away from the control panel, so you can transport it to the table for everyone to get stuck in. The second bonus of the pot being removable is that it’s dishwasher safe, so you don’t have to think about scrubbing pans after you’ve enjoyed a hearty meal.

  1. £49 from Amazon.co.uk
Prices may vary
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Cosori electric pressure cooker 5.7l

Cosori 5.7l cooker
  • Best: Slow cooker for versatility
  • Capacity : 5.7l
  • Weight : 5.4kg
  • Dimensions: 32cm x 34cm x 31.7cm
  • Oven safe: No
  • Cooking functions: Fourteen
  • Dishwasher safe : Yes
  • Why we love it
    • Tenderises meat really well
    • There’s a progression bar
    • Compact design
  • Take note
    • You can’t see your food cooking
    • Fiddly to attach the lid

Cosori’s slow cooker is one of the most stylish appliances that will ever grace your kitchen. This compact machine doesn’t just slow cook, it also pressure cooks, sautés, acts as a sous vide and has a ton of pre-programmed food settings. It is a little slow to heat up, so that needs to be considered when planning your dishing-up time.

When slow cooking, it’s always handy to be able to take a sneak peek at how the food is doing, and with this model, you can’t do that. But it does have something better: at the top of the machine, there’s an LED progress bar, which allows you to visually monitor how your food is cooking without having to open the machine. There is, of course, a timer function where you can time how long you want food to cook, as well as delay the start of the cooking process.

This is a straightforward machine to use, with all the buttons perfectly displayed. The pre-programmed food options are fantastic, especially if you’re a bit wary of how long you should cook certain foods. We used the programmable options and found perfectly cooked porridge and stew every single time, because the machine chose the right time and temperature to get it right.

Although this machine does have a pressure cooker mode, just be careful if you’re using this, as it can be quite vicious when letting off steam. The other thing to note if you’re using the slow cooker is to make sure the vent at the top remains closed, as this will keep all the heat and the steam in the pot, making sure your food gets cooked properly.

Cleaning the pot is easy, as the main pot lifts out, so you can pop it in the dishwasher along with any accessories. Also, whether you’re going to store this away or have it resting on your countertop, the cord is detachable, and wraps around the base of the machine, so you won’t have any pesky wires dangling around.

  1. £79 from Amazon.co.uk
Prices may vary
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Salter EK2842 3.5l chalkboard slow cooker

Salter chalkboard slow cooker
  • Best: Slow cooker with a fun design
  • Capacity: 3.5l
  • Weight: 3.6kg
  • Dimensions: 25cm x 30cm x 27.3cm
  • Oven safe: No
  • Cooking functions: One
  • Dishwasher safe : Yes
  • Why we love it
    • Quirky design
    • Generous bowl capacity
    • Compact size
  • Take note
    • Short power cable
    • The outside gets hot

If, like us, you’re fed up with announcing what’s for dinner every night, then this slow cooker from Salter will save you the job. The outer layer has a chalkboard finish, so you can write what’s on the menu, as well as a time it’ll be ready – perfect for trying to keep the family organised.

Despite its 3.5l capacity, this is a compact slow cooker. It’s round in shape and feels smaller than it is. Although, something to note is that the power cord is ridiculously short, so you’ll need to make sure you have space near an outlet to use it. We also found the outside of the cooker got very hot during use. This is fine for us, but those with younger people in the household may just need to be wary of that.

There are only three settings on this machine: low, high and warm. It heats up quickly and distributes the heat evenly, so food comes out perfectly cooked and piping hot. There’s no timer or option to delay the start of cooking, which would have made this slow cooker perfect – but of course, you can write reminders of times on the outside, so it’s not all bad.

  1. £29 from Amazon.co.uk
Prices may vary
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Kitchen Master slow cooker

KitchenMaster 5.5l
  • Best: Slow cooker for families
  • Capacity: 5.5l
  • Weight : 5.5kg
  • Dimensions: 36.2cm x 39.4cm x 24.5 cm
  • Oven safe: No
  • Cooking functions: One
  • Dishwasher safe: No
  • Why we love it
    • Has a glass lid
    • Simple to use
    • Quick to heat up
  • Take note
    • It’s a heavy

This is a really good option if you’re cooking joints of meat, because its large, oval bowl will fit anything from a whole chicken to a beef joint inside. In fact, it’s ideal for families, thanks to the 5.5l capacity. It’s easy to operate with three heat settings: low, high and keep warm. It’s just a shame there’s no timer or delayed start function.

Unfortunately, this isn’t dishwasher safe, but clean-up is no problem – even when we made a casserole, the food didn’t get baked on in the same way it would if you’d popped a casserole dish in the oven. Just leave it to soak for a few hours, and then it’ll effortlessly wash off.

One thing we will say is it does feel very heavy; also, the shape makes it a little more awkward to move around, so you may want to carve out a space for this machine and just leave it in situ.

It benefits from a glass lid, which we loved because we could keep an eye on our food bubbling away without opening it up. Also, we were impressed by how quickly it heated it up, leaving us with evenly cooked food at the ideal temperature.

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Daewoo stainless stell slow cooker

Daewoo 6.5l slow cooker
  • Best: Slow cooker for batch cooking
  • Capacity: 6.5l
  • Weight: 5.99kg
  • Dimensions: 32cm x 36cm x 36cm
  • Oven safe: No
  • Cooking functions: One
  • Dishwasher safe: Yes
  • Why we love it
    • Big enough to feed the family
    • Has a power indicator
    • Easy to clean
  • Take note
    • No timer or auto shut-off function

This slow cooker is ideal for families or anyone who loves to batch cook because of its massive 6.5l capacity. You can easily fit a joint inside, so for meat lovers, it’s ideal. Whilst this cooker is large, because it’s stainless steel, it does look pretty good on the countertop. We loved the glass lid so we could keep an eye on our dishes, which is especially handy if you’re cooking something where you may have to top up the liquid.

Food cooked perfectly too, and the slow cooker heated up fast. We also found the keep-warm function worked really well, and while the food wasn’t piping hot, it was warm enough to eat and enjoy straight from the pot.

It’s simple to operate with just three heat settings, and there’s an LED light to alert you when it’s in operation. The outside does get hot, so be mindful when you’re using the workspace around the cooker. The stoneware pot can be removed, and thankfully, it’s dishwasher-friendly, although we didn’t find any issues washing it by hand.

  1. £31 from Amazon.co.uk
Prices may vary
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Morphy Richards sear and stew 3.5l slow cooker

Morphy Richards evoke 3.5l sear and stew slow cooker
  • Best: Hob-safe slow cooker
  • Capacity: 3.5l
  • Weight: 1.96kg
  • Dimensions: 20cm x 33cm x 25cm
  • Oven safe: No
  • Cooking functions: One
  • Dishwasher safe: Yes
  • Why we love it
    • The pot can be used on the stove
    • Lightweight
    • Easy to use
  • Take note
    • No keep-warm function

This neat and compact slow cooker is ideal for couples and small families. It has a 3.5l pot, which makes around four generous-sized portions. It’s surprisingly lightweight and easy to move around and store.

The really great thing about this slow cooker is that the inner pot can be used on the stove, so ideal if you want to make a really good base for your dishes, as you can sear the meat or fry off the veggies before putting your liquid in.

There are three heat settings: low, medium, and high. Although there’s no keep-warm function with this slow cooker, we found that putting it on low mode did a good job of keeping the food warm without overcooking it. It is a manual slow cooker so there’s no timer or option to delay start. The slow cooker doesn’t get too hot and neither do the handles, which is handy when you want to transport it to the dinner table. Plus, the inner pot and lid are dishwasher-friendly, so it’s nice and easy to clean.

  1. £39 from Amazon.co.uk
Prices may vary
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Slow cookers FAQs

Are slow cookers cheap to run?

Not only can slow cookers help you knock up some seriously delicious dinners, but they are also energy efficient, with energy company USwitch noting that they use a little more energy than a traditional light bulb to run. While they take a little while to cook food, they use just 1.3 kWh per meal cooked.

According to research by energy company Utilita, an electric oven is one of the most energy-intensive cooking appliances, costing on average £1.05 per day to run, whereas a slow cooker is typically five times cheaper to run.

What are the benefits of slow cooking?

There are many benefits to using a slow cooker, including that you can create delicious dinners with minimal prep and without spending hours in the kitchen. Once your ingredients are in, you do not have to check on or stir, because the pot warms up evenly and should never overheat.

Cooking for a long time at a low temperature is also perfect for tenderising meat and can preserve nutrients that are sometimes lost when cooking via other methods.

What are the key features of a slow cooker to look for?

Slow cookers often have a number of important features that you should consider when choosing the right one for you.

  • Capacity – As a general rule, a 1.5-3l slow cooker will feed one or two people; 3-5l will serve three or four people; 5-5.5l will feed four to five people; and a 6.5l machine will feed six to eight.
  • Timer – Some slow cookers also have built-in timers, which means that once the set time has been reached, it will either switch off completely or automatically change to a “keep warm” setting.
  • Temperature controls – Most appliances come with different temperature controls including “low”, which is used for longer, slower cooking throughout the day and “medium” and “high”, which are both used for speedier cooking but with similar results.
  • Sous vide – A French term that means “under vacuum”, some models come with the ability to cook with the sous-vide method using a sealed pouch. By doing so, the juices and subtle flavours that would otherwise be lost during conventional cooking are retained, making for a tastier meal.

Top tips for using a slow cooker

Choose cheap cuts of meat

Slow cookers work best cooking cheaper cuts of meat such as brisket, ham hock, pork or lamb shoulder and chicken thighs so bear this in mind when shopping for your slow-cooked meal.

Remember to reduce the liquid in your slow cooker

The liquid in a slow cooker won’t evaporate as it would in a standard pot, thanks to the appliance’s tightly sealed lid. You can reduce the liquid in your pot by roughly a third so that it covers the meat and vegetables but make sure to not overfill your slow cooker as the food won’t cook as well.

Use flour to thicken your sauce

If you have added too much liquid and need to thicken the sauce, mix a small amount of cornflour with some cold water and at it into your slow cooker contents at the end.

Optimise the slow aspect of the cooker

Use the low setting on your slow cooker so that whatever dish your making can benefit the most from a slow, gentle heat which makes investing in and using a slow cooker worth it. It also is the safest option, should you be putting something to slow cook overnight or if you nip out to the shops with the appliance on and cooking a dish.

Throw everything in together

If you’re looking to optimise a relaxed form of cooking and not have to stand by the pot, you’ll want to choose recipes featuring ingredients that can be added in altogether at the beginning and then left to cook.

How long should you leave things in a slow cooker for?

The general rule of thumb is that if a dish usually takes:

  • 15-30 mins: cook it for one to two hours on the ‘high’ setting for four to six hours on ‘low’
  • 30 mins – one hour: cook it for two to three hours on ‘high’ or five to seven hours on ‘low’
  • One to two hours: cook it for three to four hours on ‘high’ or six to eight hours on ‘low’
  • Two to four hours, cook it for four to six hours on ‘high’ or eight to 12 hours on ‘low

The verdict: Slow cookers

The best slow cookers will help you create delicious meals with minimal effort. Our top pick is the Ninja foodi possiblecooker 8-in-1 slow cooker, it’s a wonderful all-rounder that will completely transform how you use your kitchen. The slow cooker function worked so well that every single dish we tested with the appliance cooked evenly and was served up at the perfect temperature. We also loved how quickly it cooked, even on slow cook function, it was much faster than a traditional slow cooker. We loved its versatility too, so if you don’t have much space in your kitchen but like a kitchen gadget, this is the one for you.

If you don’t want a slow cooker with so many functions, then we recommend the Salter chalkboard. It’s a basic machine with a fun design, perfect if you want to keep the family up to date with what’s coming up for dinner. And if you’re on a budget, then it’s worth looking at the KitchenMaster 5.5l, which is big enough to feed all the family but at a bargain price.

For more ways to make weeknight meals a little easier, read our guide to the best air fryers

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