Who this suits

Single-slice reheaters short on worktop space

If you usually warm one or two slices, look at the appliance’s footprint and where you would store it. A small basket may be sufficient, provided your usual slice fits.

Regular leftover reheaters

If pizza is one of several leftovers you reheat, a labelled Reheat function may save setup steps. Check the basket size and whether the removable parts suit your cleaning routine.

Households reheating several slices

If you want to warm multiple slices together, usable basket-floor space matters more than the litre figure alone. Compare that space with your slices as well as the appliance’s worktop footprint.

What matters when choosing

For reheating pizza in a small kitchen, check where the air fryer can sit safely before comparing basket space, controls and cleaning. Cheshire Fire and Rescue Service advises using a stable, level surface with sufficient space around the appliance.

ConcernWhat to checkWho this matters to
Worktop fit Measure width, depth and height; check the model’s ventilation-clearance instructions. When every bit of worktop is needed for preparing food, I need an appliance I can place and use safely. Around 40% of consumers put worktop fit first.
Reheating control Look for adjustable time and temperature; treat a Reheat programme as an optional shortcut. If my slices vary in thickness or toppings, I want to adjust the settings rather than rely entirely on a preset. Reheating control comes first for around 30% of consumers.
Clean-up Check whether the basket and tray are dishwasher-safe or require hand washing. Cheese and crumbs make washing up part of my decision when I reheat leftovers often. Around 20% of consumers prioritise easier clean-up.
Several-slice fit Compare the basket’s usable flat area with your slices, not just its litre capacity. When several people want pizza at once, I need to know whether their slices can lie in one layer. Room for several slices is the main concern for around 10% of consumers.

Buying pitfalls

  • Choosing by litre capacity alone

    Capacity does not tell you how much flat basket space is available for pizza. Crowding slices can restrict airflow.

    Measure a slice you commonly reheat and check the basket’s internal dimensions before deciding how many will fit in one layer.

  • Measuring only the space the appliance occupies

    An air fryer also needs room for ventilation and for its drawer to open. Lakeland lists its Slimline 8L model at approximately 42 cm wide, despite its approximately 27.5 cm depth.

    Check all three external dimensions against your worktop, then allow the clearance specified in the model’s instructions.

  • Expecting a preset to suit every slice

    A Pizza or Reheat setting cannot account for every slice thickness, topping or starting temperature.

    Choose controls you can adjust, and watch the pizza during early uses to find settings that suit your usual slices.

  • Adding paper or foil without checking the manual

    Loose liners may interfere with airflow or move towards a heating element.

    Follow the instructions for your exact model rather than assuming baking paper, foil or a liner is suitable; let the appliance cool before cleaning it.

Relevant brands to compare

Instant Pot

The Vortex Compact 5L is a single-basket option for buyers who want a stated Reheat function alongside space for small meals.

  • Instant Pot lists air fry, bake, reheat and dehydrate functions, external dimensions of 34.8 × 26.7 × 27.9 cm, and a dishwasher-safe tray.
  • Check the internal basket dimensions before assuming several pizza slices will lie flat.

Ninja

The AF180UK is a 6.2L single-basket model to consider if a dedicated Reheat function matters more than choosing the smallest appliance.

  • A Reheat function, dishwasher-safe parts and external dimensions of 305 × 280 × 360 mm are listed for the AF180UK.
  • Check both its worktop fit and internal basket area before choosing it for multiple slices.

Tower

The Vortx Compact 2 Litre is a manually controlled option for small portions where appliance bulk is a priority.

  • Tower lists temperature adjustment up to 200°C and a 30-minute timer.
  • Check that your usual slice fits; its stated controls require you to set reheating time and temperature yourself.

Lakeland

The Slimline 8L is relevant if you need more basket capacity and can accommodate its width.

  • Lakeland lists a Pizza preset and approximate external dimensions of 29 × 42 × 27.5 cm.
  • Its basket and crisper plate are hand-wash only; measure the available worktop width before considering this model.

COSORI

The UK range includes a 2L Mini Air Fryer and larger formats for comparing appliance sizes.

  • COSORI’s range comparison lists model-specific capacities and temperature ranges.
  • Check the dimensions and basket layout of the particular model you are considering rather than relying on the range description.

Joybuy products for this task

Related products coming soon.

Common questions

What size air fryer works for one or two pizza slices?

Choose by the space available on your worktop and the basket area needed for your usual slices, rather than by litres alone. Tower positions its 2L Vortx Compact for small meals and snacks, while Instant Pot positions its Vortex Compact 5L for three to four servings; neither capacity tells you how many slices will lie flat.

Do I need a Reheat function for pizza?

No: adjustable time and temperature controls let you set up reheating without a dedicated programme. A Reheat function can reduce setup steps, but check the pizza as it warms because slices differ in thickness, toppings and starting temperature.

How should I reheat pizza leftovers safely?

Make sure the pizza is piping hot all the way through. Royal Surrey NHS Foundation Trust advises against reheating food more than once; follow any applicable instructions on the food packaging too.

Can I put baking paper or foil under pizza in an air fryer?

Check the instructions for your exact model before using either. Avoid loose material that could move towards a heating element or obstruct airflow.

What electrical checks matter for an air fryer used in the UK?

Check that the appliance is supplied with a UK three-pin plug and fuse, as Electrical Safety First advises for electric air fryers used in the UK. Its guidance also suggests looking for features such as a cooking timer or automatic shut-off.