Air fryers have moved from niche gadget to kitchen essential in just a few years, and with so many models on the market it can be hard to know which one is right for your home. The Ninja Foodi Max 6-in-1 DG551UK Air Fryer sits in that sweet spot between compact countertop cooker and serious family workhorse, promising multiple cooking functions in one appliance. In this guide, we’ll look at how to get the best from a 6-in-1 air fryer like the DG551UK, when it makes sense to consider alternative Ninja models, and how to choose the right style and size for your household.
Why a 6-in-1 air fryer is more than just “posh chips”
Many people buy their first air fryer for healthier chips and end up using it daily for almost everything. A 6-in-1 model such as the Ninja Foodi Max 6-in-1 DG551UK is designed to replace several appliances at once, offering different cooking modes in a single compact unit.
Typical 6-in-1 air fryer functions cover everyday jobs like crisping frozen food, roasting chicken and veg, grilling, reheating leftovers and sometimes more specialist modes like baking or dehydrating. The idea is to free you from preheating a large oven for smaller meals, while still getting that satisfying crisp finish you’d normally associate with deep-frying.
If you want a deeper dive into what this particular model can do, it’s worth reading our full review of the Ninja Foodi Max 6-in-1 DG551UK, where we break down how each cooking mode performs in real-world use.
Is the Ninja Foodi Max 6-in-1 DG551UK the right style of air fryer for you?
Before you get into brands and model numbers, it helps to decide which style of air fryer suits your cooking habits. The Ninja Foodi Max 6-in-1 DG551UK is a single-zone, multi-function air fryer. That makes it ideal if you like the idea of one large cooking space that you can use for everything from traybakes to whole joints of meat.
However, some households prefer the flexibility of dual-zone designs, where you can cook two different foods at different temperatures and times. If that sounds more like your kitchen, it’s worth comparing the DG551UK with dual-zone alternatives such as the Ninja Foodi Dual Zone AF300UK or the Ninja MAX 6-in-1 Dual Zone DZ400UK.
Single-zone models keep things simple and are usually slightly easier to clean. Dual-zone models add flexibility, letting you roast chicken in one drawer while crisping chips in the other. Think about how you like to cook on busy weeknights: one big pan-style meal, or several separate elements you’d like to bring together at once?
Understanding capacity and footprint
Capacity is one of the main points of confusion when shopping for air fryers. While the exact litre size of the Ninja Foodi Max 6-in-1 DG551UK isn’t listed in our data, it sits in Ninja’s larger countertop category, aimed at families and batch cookers rather than solo cooks.
When judging capacity, consider:
- How many people you cook for regularly – if you’re feeding three to four people most nights, it makes sense to size up rather than fight for space.
- What you actually cook – whole chickens, joints of meat and large traybakes need more height and width than chips and nuggets.
- Countertop space – measure the space under your cupboards and check that you can lift the lid or slide out the basket comfortably.
If you know you’ll be cooking multiple elements at once, a dual-drawer model like the Ninja Foodi FlexDrawer Dual AF500UK may offer a better balance of capacity and flexibility. Its adjustable drawer design means you can run it in dual-zone mode for everyday meals or convert to one large space when you need it for bigger items.
Key reasons people choose the Ninja Foodi Max 6-in-1 DG551UK
While every household is different, there are a few common reasons shoppers are drawn to a 6-in-1 model like the Ninja Foodi Max 6-in-1 DG551UK.
Multi-function convenience
Having several cooking modes in one machine reduces clutter. Instead of a separate air fryer, grill, and perhaps even an extra mini-oven, you can rely on a single workhorse that handles most everyday tasks. It’s particularly appealing in smaller kitchens or open-plan spaces where you want fewer appliances on show.
Crispy results with less oil
Air fryers use powerful fans and focused heat to crisp the outside of food while keeping the inside tender. You still get that satisfying crunch on chips, wedges and breaded coatings, but with far less oil than deep-frying and usually less mess than a tray in the oven.
High user satisfaction
The Ninja Foodi Max 6-in-1 DG551UK has a strong average rating of 4.7 out of 5 from over a hundred reviews, suggesting that real owners are generally very happy with performance and build quality. To see what people are praising – and any minor niggles they’ve found – you can read our full hands-on review of the Ninja Foodi Max 6-in-1 DG551UK here.
When a dual-zone Ninja might suit you better
Even if you like the look of the DG551UK, it’s sensible to ask whether a dual-zone design would fit your lifestyle more closely. Ninja’s dual-zone models are extremely popular, and a couple stand out as natural alternatives.
Ninja Foodi Dual Zone AF300UK
The Ninja Foodi Dual Zone AF300UK is one of the best-known dual-zone air fryers on the UK market, with a superb user rating and thousands of reviews. Its two independent drawers allow you to run different cooking modes and temperatures at the same time, then sync the end time so everything is ready together.
This is especially handy if you prefer building meals around separate components – think salmon in one drawer and veg in the other, or different frozen favourites for fussy eaters. If you regularly cook multiple items at once, it can feel more flexible day to day than a single large basket.
Ninja MAX 6-in-1 Dual Zone DZ400UK
If you like the idea of dual drawers but want something a bit more performance-focused, the Ninja MAX 6-in-1 Dual Zone DZ400UK is another strong option. It builds on the dual-zone concept with a high user rating and a feature set tailored to fast, versatile cooking.
It’s a natural choice if you want the same kind of 6-in-1 functionality you’d get from the Ninja Foodi Max 6-in-1 DG551UK, but prefer to spread that capacity across two zones rather than one big one.
Ninja Foodi FlexDrawer Dual AF500UK
The Ninja Foodi FlexDrawer Dual AF500UK adds another twist: a flexible drawer that can act either as two separate cooking zones or one large space for bigger items. This is particularly clever if you don’t want to commit to either a single- or dual-zone footprint, or if you sometimes cook for one and sometimes for a crowd.
For households that like to host or batch cook, that ability to switch between modes can be more useful in the long run than an extra preset or slightly faster preheat time.
Looking beyond Ninja: a budget-friendly alternative
Ninja’s line-up is impressive, but it’s not the only option. If you like the idea of a multi-function air fryer but want to keep costs in check, have a look at the Morphy Richards 480020 Air Fryer. It comes in at a similar price to some mid-range Ninja models but offers a different design and user experience.
While it may not have the same breadth of presets or ecosystem of accessories, it’s worth considering if you just want reliable, straightforward air frying and don’t need every possible cooking mode. For occasional use or as a second appliance in a larger kitchen, a simpler model can still offer excellent value.
Practical tips for getting the best from a 6-in-1 air fryer
Whichever model you choose, a few simple habits will help you get better results and avoid common frustrations.
Preheat when it matters
One of the big attractions of air fryers is how quickly they heat up, but that doesn’t mean you should always skip preheating. For foods where crispness really counts – chips, wedges, breaded chicken – a short preheat helps set the surface and improves texture. For casseroles or reheating, you can usually get away without it.
Don’t overcrowd the basket
Air fryers work by pushing hot air around the food, so if you pile ingredients on top of each other, they may steam instead of crisp. Try to keep food in a single layer where possible, shaking the basket or turning pieces halfway through cooking. If you regularly find yourself cooking in batches, it’s a sign you’d benefit from a bigger or dual-zone model.
Use a light touch with oil
You don’t need much oil in an air fryer, but a small amount can make a big difference to browning and flavour. A teaspoon or two, tossed through chips or veg, usually beats a heavy spray from a low-quality oil mister, which can sometimes leave a patchy finish or gum up the basket coating.
Cleaning and maintenance: keeping performance high
A little regular care goes a long way to keeping your air fryer running well and smelling fresh.
- Clean drawers and baskets after each use – once cool, wash in warm, soapy water or the dishwasher if the manual allows. This stops grease building up and transferring flavours between meals.
- Wipe the interior – use a soft cloth or sponge to wipe the inside of the cooking chamber and around the elements when they’re completely cool. Avoid anything abrasive that could damage the coating.
- Check vents and fans – every so often, inspect air inlets and outlets for dust and crumbs. Clear blockages gently to maintain good airflow.
Higher-end models like the Ninja Foodi Max 6-in-1 DG551UK tend to have solid build quality and user-friendly coatings, but they still benefit from routine cleaning. Treat your air fryer like a compact oven and it’s more likely to give you reliable results for years.
Energy use: how air fryers can help cut bills
With energy prices in mind, many buyers are turning to air fryers as a way to reduce running costs. Because appliances like the Ninja Foodi Max 6-in-1 DG551UK focus heat on a smaller space and reach temperature quickly, they often use less electricity per meal than a full-sized oven.
You’ll notice the difference most when cooking small to medium portions that would otherwise need a long oven preheat. For a big Sunday roast with multiple trays, an oven may still be more practical, but for everyday dinners it’s easy to lean on the air fryer instead. Over weeks and months, that shift can make a real dent in your energy usage.
Which air fryer should you choose?
There’s no single “best” air fryer for everyone, but you can narrow the field quickly by asking a few key questions:
- Do you want one big cooking space, or two smaller ones? – choose a single-zone model like the Ninja Foodi Max 6-in-1 DG551UK for simplicity, or dual-zone options like the AF300UK or DZ400UK for flexibility.
- How many people are you cooking for? – families and batch cookers should prioritise capacity; couples or solo cooks may be better off keeping size smaller and focusing on features.
- Which functions will you actually use? – lots of presets are nice, but crisp, even cooking and an intuitive interface matter more in daily life.
- What’s your budget? – Ninja’s range covers mid to upper price points, while models like the Morphy Richards 480020 Air Fryer offer simpler, often cheaper alternatives.
If a versatile, well-rounded single-zone model appeals, the Ninja Foodi Max 6-in-1 DG551UK is a strong candidate. To dig into how it handles different recipes and see whether its size and layout would work in your kitchen, don’t forget to check our in-depth review of the Ninja Foodi Max 6-in-1 DG551UK.
Final thoughts
A good air fryer quickly becomes one of the most-used appliances in the house, so it’s worth taking the time to choose the right one. The Ninja Foodi Max 6-in-1 DG551UK offers a strong blend of capacity and versatility in a single-zone design, while dual-zone models like the Ninja AF300UK, Ninja DZ400UK and Ninja FlexDrawer AF500UK cater for those who want more flexibility.
Whether you’re upgrading from a smaller unit or buying your first air fryer, think about your everyday meals, your space and your budget before you decide. Then explore our linked in-depth reviews to see how each model performs in real kitchens, so you can buy with confidence and start enjoying faster, easier, healthier cooking at home.