Ninja Double Stack XL Air Fryer (SL400UK) — 9.5L, Dual Drawer with 4 Cooking Levels

What it is and what it’s for

The Ninja Double Stack XL Air Fryer is a vertical dual-drawer air fryer designed to maximise counter space while feeding up to eight people. With a 9.5L total capacity spread across two drawers and two racks, you can cook multiple items at once on four levels. It’s intended for households that want quicker, energy-efficient cooking without running a full oven.

Why it might matter in your kitchen

On paper, the design claims to save space by being 30% slimmer than a comparable model, while still offering an unusually large capacity. The rear fan layout is positioned to promote even cooking and crisper results across all levels, which can be a practical advantage if you routinely batch cook or prepare several items at once.

How it performs in everyday use

The unit features six cooking functions: Max Crisp, Air Fry, Roast, Bake, Reheat, and Dehydrate. The Air Fry function is positioned as a way to achieve up to 75% less fat versus traditional deep frying, based on tested comparisons with air-fried French fries. The two drawers can be synced and matched for coordinated cooking, which helps when coordinating different menu items or courses.

What to compare against (and why it matters)

If you’re weighing this against a conventional oven, the promise is faster results and energy savings—up to 55% less energy in tested scenarios for sausages. The trade-off is a bulkier footprint than a single traditional oven rack, albeit smaller than many full-size ovens when considering total kitchen space.

Who it’s for

It suits households that frequently cook for groups (up to eight portions) and want to reduce batch time by running multiple foods in parallel. It may appeal to those who need a space-saving appliance but don’t want to compromise on capacity or versatility.

Who it isn’t ideal for

If you rarely cook for more than three or four people, or have limited bench space that cannot accommodate a 38.5 cm tall appliance, this model might feel oversized for your needs. It’s also fairly heavy at about 10.3 kg, so consider where you’ll position it and how you’ll move it if needed.

What to check before buying

• Dimensions and clearance: H38.5 cm x W28 cm x D47 cm, ensure there’s room for ventilation and access to the drawers.
• Weight and stability: it’s a solid unit, think about where it will sit and if any reconfiguration is required for cleaning or maintenance.
• Included accessories: two 4.75 L drawers, two non-stick crisper plates, and two racks are supplied, verify you’re happy with the included items for your typical meals.
• Cleaning: all non-stick parts are dishwasher safe, which is helpful for busy weeks.

Practical use example

Imagine you’ve planned a family Sunday dinner: a couple of trays of vegetables roasting in one drawer while schnitzels or fish fingers crisp up in the other. With four levels available, you can optimise timing so the sides stay warm as the main dish finishes, without needing a second appliance.

How it compares to other approaches

Compared with a standard countertop air fryer, this model trades a larger single-basket footprint for a dual-drawer design that can run different items in parallel. If you prioritise batch cooking efficiency and space saving, this can be a sensible middle ground between a compact air fryer and a full-sized oven.

Final verdict

Final verdict: worth considering if you value multi-level cooking and space efficiency, and you regularly cook for a small crowd. It’s not a universal solution for every kitchen size, but for those who want to maximise cooking capacity without a full oven, it offers a compelling combination of capacity, features and convenience.

FAQ

• Can I cook different foods at the same time in both drawers? Yes, the Sync & Match feature allows coordinated cooking across the two drawers.
• Is it efficient for everyday use or more for weekends? It aims to be energy-efficient relative to ovens, with practical benefits for batch weekend cooking and weeknight meals alike.
• What are the primary limitations? The unit is sizeable and weighs over 10 kg, so consider bench space and portability requirements.