Who is this for?

Hosts preparing several batches

If the courgette slices will take more than one tray, the number of usable cooking levels and the time needed to manage successive batches matter more to you than a small appliance footprint.

Hosts adding oven space to a crowded worktop

An extra baking station is useful only if its exterior dimensions and the clearance required by its manual leave enough room to prepare and serve food safely.

Buyers who also want hob space

An oven with integrated hotplates may let you cook accompaniments while courgette slices bake. You will still need to manage the oven’s tray position and batch timing according to its controls.

What matters when choosing?

Decide how many trays you need to cook, then compare the heating method and the space each oven requires. Published cavity volume alone cannot tell you how many courgette slices will fit in a single layer.

Two-level convection oven

Consider it when: You want to bake on two levels during the same preparation window; Ninja specifies two-level cooking for the DT200UK.

Allow for: The DT200UK’s stated 50.5 cm depth, plus the clearance required by its manual.

Conventional oven with hotplates

Consider it when: You want a larger stated cavity and hotplates for cooking accompaniments; the Igenix IG7145 is a 45 L example.

Allow for: CEF lists one shelf, no fan-assisted cooking and no timer for that model, so plan how you will manage each batch.

Compact mini oven

Consider it when: You need to bake only a small quantity or an occasional follow-on batch; De’Longhi’s EO12012 illustrates this 12 L option.

Allow for: Its smaller cavity makes tray dimensions particularly important if it will be your main oven for the buffet.

Concern What to check Who this matters to
Batch throughput Check the supplied tray dimensions and which shelf levels can be used for baking at the same time. If I have several trays of slices to prepare, I want to avoid a long sequence of single-tray batches. Roughly 42% of consumers put throughput first.
Baking control Check whether the exact model uses convection or selectable heating elements, and how its controls handle batch timing. When browning across successive trays matters most to me, I need a cooking method I can manage consistently. About 33% of consumers prioritise baking control.
Worktop fit and other cooking tasks Measure the appliance footprint and consult its manual for clearance; check whether hotplates are useful for your accompaniments. I need another oven without losing too much preparation space, and may want to cook a side dish alongside it. Around 25% of consumers make fit and multifunctionality their primary concern.

Buying pitfalls

  • Choosing by litres alone

    Cavity volume does not show the supplied tray area or how many trays can bake at once. Ninja specifies two-level cooking for the DT200UK, whereas CEF lists one shelf for the larger-capacity Igenix IG7145.

    Check tray and rack dimensions, usable shelf positions and whether the oven supports your planned tray arrangement before working out the number of batches.

  • Measuring the oven but not its working space

    Ninja states that the DT200UK is 50.5 cm deep; CEF lists the IG7145 at 431 mm deep. Neither exterior measurement includes the space you may need around the appliance.

    Measure the intended position in every direction and follow the clearance instructions for the exact model.

  • Using cooking features as a hot-holding plan

    A warm setting or hotplate does not, by itself, establish that prepared food will remain at a suitable temperature throughout a catered buffet.

    For food-business or catering use, follow Food Standards Agency hot-holding guidance, which specifies 63°C or above for hot food, and use equipment and temperature checks appropriate to the service.

  • Assuming similarly named ovens are the same UK-market version

    Model variants can differ in their supplied accessories, plug and marking information. GOV.UK’s March 2026 guidance also distinguishes electrical-equipment marking for Great Britain from that for Northern Ireland.

    Check the exact model, intended market, supplied plug and accessories before ordering, and consult current product-safety alerts for that model.

Relevant brands to consider

Ninja

The DT200UK illustrates a larger countertop oven for hosts considering cooking on two levels.

  • Ninja specifies True Surround Convection, two-level cooking and 10 cooking functions for the DT200UK.
  • Its stated 50.5 cm depth needs careful worktop planning. Manufacturer speed claims for other foods should not be treated as a courgette-baking time.

Igenix

The IG7145 illustrates a conventional 45 L mini oven with two integrated hotplates.

  • Igenix specifies a 100–220°C temperature range and supplies a baking tray and wire rack.
  • CEF lists this model as non-fan-assisted, with one shelf and no timer; account for those controls when planning repeated trays.

De’Longhi

The EO12012 illustrates the compact-oven route for small quantities rather than a large buffet run.

  • De’Longhi specifies a 12 L cavity, bake and grill functions, and a 100–220°C thermostat.
  • Check its tray dimensions against the quantity you intend to bake before relying on it as the buffet’s main oven.

Joybuy products

Related products coming soon.

Frequently asked questions

Is a 45 L mini oven automatically more useful than a 29 L one for a buffet?

No: cavity volume does not tell you the tray footprint or how many courgette slices will fit in a single layer. Ninja specifies two-level cooking for its 29 L DT200UK, while CEF lists one shelf for the 45 L Igenix IG7145. Compare supplied trays and usable cooking levels for the batches you plan.

Do I need a fan-assisted oven for courgette slices?

Not necessarily; a conventional oven can bake courgette slices, but its heating controls and tray positions matter when you are planning repeated batches. Ninja specifies convection and two-level cooking for the DT200UK, while CEF lists the Igenix IG7145 as non-fan-assisted. Check the exact model’s baking instructions rather than assuming both will handle trays in the same way.

Can a mini oven keep cooked slices hot for a catered buffet?

Do not rely on a cooking or warm setting without checking that it can meet your food-service requirements. Food Standards Agency guidance for caterers specifies that hot food must be kept at 63°C or above; plan suitable hot-holding equipment and temperature checks separately from baking.

Which electrical marking should I check on a UK-market mini oven?

Check the marking appropriate to where the oven is supplied. GOV.UK’s March 2026 guidance lists UKCA or CE for electrical equipment placed on the Great Britain market, and CE, or CE with UKNI where applicable, for Northern Ireland. Confirm the exact model and its intended market rather than relying on a similar product name.

What should I do after baking courgette slices with oil?

Let the oven cool, then clean grease and food residue in line with the model’s instructions. Electrical Safety First identifies built-up fat and grease as a major cause of kitchen fires; also follow the appliance manual’s directions for removable parts and ventilation.