What each layout does
A single-basket air fryer has one cooking compartment, normally a pull-out basket with a crisper plate or perforated base. It runs one programme at a time, and you shake or turn the food part-way through. Electrical Safety First notes that basket models suit fast, crispy cooking where you shake the food.
A dual-basket air fryer, also called dual-drawer or dual-zone, has two separate compartments in one casing, each with its own settings. Designs differ: Tefal’s EY942BG0 pairs a 6.5 L drawer with a 4.5 L one, while Ninja’s AF400UK has two equal drawers.
Usable capacity: why total litres can mislead
A dual-basket model’s headline capacity is the total of its drawers. Tefal’s EY942BG0 is quoted at 11 L, but the largest single compartment is 6.5 L, so no one dish can use more than that. A single-basket model’s capacity is one compartment, so the number means something different even when the litres match.
Litres also say little about floor area. Food generally cooks more evenly when it is not packed on top of itself, so the base area of the basket or drawer matters more than its depth. Manufacturers’ stated maximum loads are a more practical guide. Tefal’s manual for the EY942BG0, for instance, lists up to 1,500 g of frozen fries in the larger drawer and up to 1,000 g in the smaller one.
A better question than ‘how many litres?’ is ‘what is the biggest single load I cook, and which compartment holds it?’
Cooking two foods at once
The main reason to choose two drawers is to cook different foods on different settings and have them ready together, such as vegetables in one drawer and chicken in the other. With a single basket you either cook in turn or choose foods that share a setting.
How the finish is coordinated varies. Tefal’s manual describes a sync mode that delays the start of the quicker food, shown as HOLD on screen, so both finish together. If you remove a drawer and do not slide it back within five minutes, the manual says the other drawer keeps running but the sync programme ends. Ninja’s AF400UK page describes SYNC and MATCH options for coordinating the drawers.
The rated power quoted by the manufacturers we researched is for the whole appliance, not for each drawer.
Worktop and storage
Two compartments side by side mean dual-basket models are often wider than single-basket ones, but sizes vary so much by model that layout alone is a poor guide. Compare actual dimensions from the manufacturer, and allow the clearance its manual asks for.
Consider where the appliance will live between uses. A machine that has to be lifted out of a cupboard each time tends to be used less.
Extra parts and cleaning
Two drawers usually mean two drawers and two plates or grids to wash. Check which parts are dishwasher safe for the exact model: Tefal’s manual says the EY942BG0 drawers and grids are, and Ninja lists dishwasher-safe parts for the AF400UK. Non-stick coatings are normally damaged by metal utensils and abrasive pads.
Let the appliance cool before cleaning it. Electrical Safety First suggests waiting at least 30 minutes, and says not to put an air fryer in water apart from any parts the manufacturer recommends.
Running costs
The Energy Saving Trust says air fryers are often cheaper than an electric oven for the same small meal. We found no reliable source that compares the running costs of single and dual layouts, so we make no claim either way. Cost depends on the appliance’s rated power, how long you cook, how much is cooking and, for a dual model, whether you use one drawer or both.
Exceptions and things to check
Do not assume every dual-basket model behaves like the next. Drawers can be unequal in size. Limits can apply to one drawer only: Tefal’s manual lists a whole chicken of up to 1.5 kg in the larger drawer and not the smaller. Not every model lets you use a single drawer alone, though Tefal’s EY942BG0 manual includes instructions for doing so. Some designs differ from the two-drawer layout described here, and some single baskets are large.
The model’s own instruction manual is the final word on loads, clearance and cleaning.
How to choose from your own habits
Start with the largest single item you cook and the compartment that holds it. Then ask how often you cook two things at once on different settings. If the answer is rarely, a single basket is likely to be enough. If it is most evenings, a second drawer earns its space.
Finally, weigh worktop space and washing-up. A larger machine you use every day can be worth it; one that is awkward to store or clean may not be. Our air fryer buying guide shows how these trade-offs look on three researched models.