Ninja Double Stack SL300UK 7.6L 2-Drawer Air Fryer

Enjoy the flexibility of a dual-drawer air fryer without sacrificing valuable worktop space. The Ninja Double Stack SL300UK 7.6L Air Fryer positions its two independently controlled cooking drawers vertically rather than side by side, making it 25% slimmer than the Ninja AF300.

• Space-saving vertical design: Two drawers stacked one above the other make the appliance 25% slimmer than the Ninja AF300.
• 7.6-litre total capacity: Two independently controlled 3.8L drawers provide space for family meals for up to six people.
• Cook across four levels: Two included Stacked Meal racks let you cook food on two levels inside each drawer.
• Six cooking functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat.
• Up to 50% faster than fan ovens: Based on Ninja testing against fish fingers and sausages.

A dual air fryer designed for narrower worktops

Conventional two-drawer air fryers place both cooking zones beside one another, creating a wide appliance that can occupy a substantial amount of worktop space. The Ninja Double Stack takes a different approach by positioning its two drawers vertically.

At approximately 28.6cm wide, the SL300UK is 25% slimmer than the Ninja AF300 while still providing two independently controlled cooking zones. This makes it an attractive option for apartments, smaller kitchens and busy worktops where horizontal space is limited.

The appliance measures 38.5cm high, so buyers should also check the available clearance beneath wall-mounted kitchen cupboards before ordering.

Two independently controlled 3.8L drawers

The Ninja SL300UK has a combined capacity of 7.6 litres, divided between two 3.8L cooking drawers. Each drawer has its own cooking time, temperature and programme controls, allowing different foods to be prepared simultaneously.

You could air fry chicken in one drawer while roasting vegetables in the other, or use one zone to reheat food while the second cooks frozen chips using Max Crisp. This flexibility helps reduce the need to cook different parts of a meal one after another.

Cook food across four levels

Each drawer includes a removable Stacked Meal rack. Placing a rack above the crisper plate creates two cooking levels inside the drawer, allowing food to be arranged across a total of four levels throughout the appliance.

Ninja’s Double Stack Air Fry Technology is designed to circulate heat throughout each drawer so food can cook and crisp on both levels. For best results, foods placed together in the same drawer should require compatible cooking temperatures and timings.

The racks are useful for complete meals, party food and different meal components. For example, meat can be placed on the rack while compatible vegetables cook underneath, helping make better use of the available space.

SYNC and MATCH cooking controls

The two drawers can be operated independently or coordinated using Ninja’s Dual Zone controls:

• SYNC: Set a different function, temperature and cooking time in each drawer. The air fryer automatically coordinates the cooking so both zones finish at the same time.
• MATCH: Copy the same programme, time and temperature across both drawers when cooking a larger quantity of the same food.

The SYNC function is particularly useful when different parts of a meal require different cooking times. Rather than allowing one drawer to finish early and become cold, the SL300UK delays the appropriate cooking zone so everything is ready together.

Six versatile cooking functions

The Ninja Double Stack SL300UK provides six programmes covering everyday air frying, baking, roasting and reheating:

• Air Fry: Produces crisp, golden results using little or no added oil.
• Max Crisp: Uses temperatures of up to 240°C for smaller quantities of frozen or breaded food requiring an extra-crispy finish.
• Roast: Suitable for meat, poultry, vegetables and other traditional roast-style dishes.
• Bake: Designed for cakes, pastries, bread and baked dishes.
• Dehydrate: Uses low temperatures from 40°C to remove moisture from fruit, vegetables, herbs and meat.
• Reheat: Warms leftovers while helping restore a crisp texture that may be lost when using a microwave.

Up to 50% faster than a fan oven

The Ninja SL300UK can cook selected foods up to 50% faster than a fan oven. This claim is based on Ninja testing using fish fingers and sausages, so the exact saving will vary according to the food, quantity, programme and conventional oven used for comparison.

Because an air fryer heats a smaller cooking area and normally requires little or no preheating, it can be especially convenient for everyday portions, quick lunches and midweek family meals.

Cook using less energy than an oven

Ninja states that the SL300UK can use less energy than a conventional oven when preparing suitable meals. Its energy comparison is based on the recommended cooking time for sausages using the Air Fry function versus conventional ovens.

The actual energy saving will depend on what is being cooked, the quantity of food, the selected programme and the size and efficiency of the oven it replaces.

Family-sized 7.6L capacity

The two 3.8L drawers provide a combined 7.6L capacity, which Ninja describes as suitable for meals for up to six people. Actual serving capacity will depend on the food and portion size, but the SL300UK is well positioned between compact single-drawer models and larger 9.5L dual-drawer air fryers.

The independent drawers are also useful for smaller meals. You can operate a single drawer when cooking for one or two people rather than heating the entire appliance.

Adjustable temperature and cooking times

The available temperature range extends from 40°C on Dehydrate to 240°C on Max Crisp. Air Fry, Roast, Bake and Reheat can be set up to 210°C.

Timer ranges vary by programme:

• Air Fry: Up to 60 minutes.
• Max Crisp: Up to 30 minutes.
• Reheat: Up to 60 minutes.
• Roast: Up to four hours.
• Bake: Up to four hours.
• Dehydrate: Up to 12 hours.

Dishwasher-safe removable components

The two cooking drawers, crisper plates and Stacked Meal racks are removable and dishwasher safe, helping make cleaning easier after use. The non-stick surfaces can also be washed by hand using warm water, washing-up liquid and a non-abrasive sponge.

The main appliance contains the electrical controls and heating components and must not be immersed in water.

Who is the Ninja Double Stack SL300UK best for?

The SL300UK is particularly suitable for:

• Households that want a dual-drawer air fryer but have limited worktop width.
• Families and households regularly cooking for up to six people.
• Couples who want the option to use one drawer for smaller meals.
• People who regularly cook foods requiring different times or temperatures.
• Buyers who want to cook several meal components across four levels.
• Anyone looking to use their full-sized oven less frequently for everyday meals.

Buyers with a larger family or who routinely prepare substantial portions may prefer the larger 9.5L Ninja Double Stack SL400UK. The SL300UK offers the same basic stacked concept in a more compact 7.6L format.

Ninja Double Stack SL300UK specifications

What is included?

• Ninja Double Stack SL300UK air fryer
• 2 × 3.8L non-stick cooking drawers
• 2 × non-stick crisper plates
• 2 × stainless-steel Stacked Meal racks
• Recipe and inspiration guide
• Instruction booklet

Frequently asked questions

What is the capacity of the Ninja SL300UK?
The SL300UK has a total capacity of 7.6 litres, divided between two independently controlled 3.8L drawers.

How many people can the Ninja SL300UK cook for?
Ninja describes the 7.6L capacity as suitable for meals for up to six people. Actual serving capacity depends on the food and portion size.

How wide is the Ninja Double Stack SL300UK?
The appliance is approximately 28.6cm wide. Its vertically stacked drawers make it 25% slimmer than the side-by-side Ninja AF300.

Can I use different settings in each drawer?
Yes. Each drawer has independently adjustable cooking functions, times and temperatures.

What does the SYNC button do?
SYNC coordinates two different cooking programmes so both drawers finish at the same time.

What does the MATCH button do?
MATCH copies the same cooking function, temperature and time to both drawers, which is useful when preparing a larger quantity of one food.

Can the Ninja SL300UK cook four foods at once?
The included racks create four cooking levels across the two drawers. Foods placed within the same drawer should require compatible cooking times and temperatures.

What are the six cooking functions?
The six functions are Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat.

What is the maximum temperature?
Max Crisp reaches up to 240°C. Air Fry, Roast, Bake and Reheat can be set up to 210°C, while Dehydrate begins at 40°C.

Is the Ninja SL300UK faster than an oven?
Ninja states that it can cook selected foods up to 50% faster than a fan oven, based on testing against fish fingers and sausages. Results vary according to the recipe and appliance used for comparison.

Does it use less energy than an oven?
Ninja states that the Air Fry function can use less energy than a conventional oven for suitable foods. Its comparison is based on recommended cooking times for sausages.

Are the drawers dishwasher safe?
Yes. The removable drawers, crisper plates and racks are dishwasher safe.

What is the difference between the SL300UK and SL400UK?
The SL300UK has a 7.6L capacity with two 3.8L drawers and is recommended for meals for up to six people. The larger SL400UK has a 9.5L capacity with two 4.75L drawers.

Product summary