Ninja Foodi Max Dual Zone 9.5L (AF400UK)

Ninja AF400UK Review: 9.5L Dual Zone Air Fryer for Family Feasts

Read our detailed review of the Ninja AF400UK Dual Zone Air Fryer. With 9.5L capacity, two drawers, and 6 cooking functions, it’s perfect for large families.

The Ninja Foodi Max Dual Zone AF400UK is one of the largest air fryers in Ninja’s UK range — and a top choice for larger households. With a total capacity of 9.5L spread across two 4.75L drawers, it’s built for families that want to cook mains and sides together with ease. Featuring six cooking functions, Smart Finish, Match Cook, and Ninja’s signature crisping performance, the AF400UK is a powerful, spacious, and well-loved model for a reason. Let’s take a closer look at what it can do.

What Is the Ninja Foodi Max Dual Zone AF400UK?

The Ninja Foodi Max Dual Zone AF400UK is a high-capacity air fryer with two 4.75L drawers, designed for family-sized cooking. It features six modes: Air Fry, Max Crisp, Roast, Bake, Reheat, and Dehydrate. Smart Finish lets you cook two foods that finish at the same time, even if they require different durations. Match Cook allows you to duplicate settings across both drawers for big batch meals. The AF400UK builds on the success of the AF300UK, offering even more room and faster cooking power.

Key Features of the Ninja AF400UK

  • 🧺 9.5L Total Capacity: Two extra-large drawers for cooking full meals simultaneously.
  • 🕹️ Smart Finish + Match Cook: Sync cooking times or mirror settings across drawers.
  • 🔥 6 Functions: Air Fry, Max Crisp, Roast, Bake, Reheat, and Dehydrate.
  • High Power: 2470W for fast heat-up and consistent cooking results.
  • 👨‍👩‍👧‍👦 Ideal for Large Families: Easily serves 4–6 people in one cycle.

Design & Build of the AF400UK

Sporting Ninja’s signature matte black finish and silver handles, the AF400UK is a stylish yet substantial countertop appliance. Each drawer is equipped with its own crisper plate and operates independently. The control panel is centrally located, with responsive touch buttons and a crisp LED display. The unit feels solid and well-built, with a heavy-duty design that reflects its larger cooking volume.

How Big Is the Ninja AF400UK?

This air fryer offers a combined capacity of 9.5L (4.75L per drawer), which is among the largest available in the UK. Perfect for large families or hosting guests, each drawer can handle a tray of chicken wings, a pair of salmon fillets, or a hearty portion of roast potatoes. It measures approximately 42cm wide, 32cm deep, and 33cm tall — so while it does demand worktop space, it earns it by replacing your oven for many meals.

Cooking Power & Results

The AF400UK is a performance beast. Whether you're air frying breaded fish, roasting vegetables, or reheating pizza, the results are crispy, even, and fast. Max Crisp mode is especially effective for frozen foods, while Bake mode delivers surprisingly moist cakes and muffins. Dual drawer flexibility means you can prep two separate parts of a meal at once — no flavour crossover and no juggling oven trays. The Smart Finish feature works seamlessly, helping different foods finish together without overcooking.

Is the AF400UK Easy to Use?

The AF400UK is a performance beast. Whether you're air frying breaded fish, roasting vegetables, or reheating pizza, the results are crispy, even, and fast. Max Crisp mode is especially effective for frozen foods, while Bake mode delivers surprisingly moist cakes and muffins. Dual drawer flexibility means you can prep two separate parts of a meal at once — no flavour crossover and no juggling oven trays. The Smart Finish feature works seamlessly, helping different foods finish together without overcooking.

How to Clean the AF400UK

Cleaning is straightforward. Both baskets and crisper plates are non-stick and dishwasher-safe. After each use, allow the unit to cool before wiping down the interior walls with a damp cloth. The outside can be wiped with a microfibre cloth to keep it smudge-free. It’s worth checking behind the drawers weekly for grease or residue buildup.

Where to Buy the Ninja AF400UK

Available through NinjaKitchen.co.uk, Amazon, and retail partners featured in The Sun. The AF400UK typically retails between £199 and £229. Watch for seasonal offers, bundles, and value packs that include extra crisper plates or recipe books.

Pros and Cons of the AF400UK

  • ✅ Massive capacity — ideal for families
  • ✅ Smart Finish makes multitasking easy
  • ✅ 6 versatile cooking modes
  • ❌ Requires significant counter space
  • ❌ No smart probe or glass window

How the AF400UK Stacks Up Against Other Ninjas

The AF400UK is a clear upgrade over the AF300UK thanks to larger drawers and slightly faster cooking speeds. Compared to the DoubleStack XL, it takes up more horizontal space but may be easier to access for some users. It doesn’t have the smart thermometer like the premium DoubleStack XL, but the power and capacity more than make up for it for most family needs.

Final Verdict: Should You Buy the Ninja AF400UK?

If you’ve got the counter space and cook for a crowd, the Ninja AF400UK is a no-brainer. It’s fast, versatile, and large enough to replace your oven for many meals. The dual drawers and 6 modes offer total flexibility. It might lack some of the premium tech features of newer models, but in terms of performance-per-pound, this one’s hard to beat.

Ninja AF400UK Frequently Asked Questions

Is the Ninja AF400UK suitable for batch cooking?

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Yes — each drawer holds up to 4.75L, perfect for prepping meals in bulk.

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Can I cook sweet and savoury together without mixing flavours?

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Yes — drawers are fully independent with no flavour transfer.

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Does the AF400UK come with a recipe book?

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Yes — it includes a printed guide with timings and cooking inspiration.

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Does this model have a smart thermometer?

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No — the smart thermometer is only available on premium models like the DoubleStack XL.

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Best Recipes for the Ninja AF400UK