For one dish of aubergine rolls, choose a countertop mini oven that explicitly lists convection if fan-assisted baking matters to you, then confirm that your ovenproof dish fits on its tray or rack. The 19-litre Tefal Optimo OF445840 and 23-litre Daewoo SDA1608 both list convection, but capacity alone cannot establish dish fit. A smaller conventional oven is an alternative when worktop space matters more than a documented fan mode; check the appliance’s clearance and electrical instructions before buying.
If you mainly bake one ovenproof dish of aubergine rolls, look for a stated convection function, controllable temperature and a usable tray or rack. Check your dish against the oven’s internal space rather than choosing by capacity alone.
If the oven must fit a small counter or be stored between uses, measure the space available for the appliance and its required clearances. A compact exterior does not tell you whether your baking dish will fit inside.
If you also plan to grill, reheat or crisp food, compare the exact model’s functions and accessories. Those extra uses only help with this dish if the cooking chamber accepts your ovenproof dish.
Choose when: You want a stated fan-assisted mode for baking your dish; Tefal lists convection for the Optimo OF445840, and it is listed for the Daewoo SDA1608.
Bear in mind: Neither model’s capacity figure confirms that your particular dish fits.
Choose when: A small countertop appliance matters more to you than fan-assisted cooking. De'Longhi lists bake and grill functions and a 26 cm maximum round-plate dimension for the EO12012.
Bear in mind: Its published functions do not establish a convection mode, and the round-plate limit does not establish fit for a rectangular dish.
Choose when: You will regularly use functions beyond baking a single dish, such as grilling or crisping.
Bear in mind: Check the chamber and supplied accessories before choosing an air-fryer-style design for an ovenproof dish.
| Concern | What to check | Who this matters to |
|---|---|---|
| Baking and dish fit | Look for a stated convection mode if required, then confirm that your dish, including its handles, fits on the tray or rack. | If I am baking one dish of aubergine rolls, I need the cooking mode I want and enough usable space for my own dish. Around 40% of consumers put baking and dish fit first. |
| Worktop and electrical fit | Compare external dimensions with the manual’s clearance instructions, and check the appliance’s power and connection requirements. | With little counter space, I need somewhere suitable to position and power the oven before considering its other functions. Worktop and electrical fit come first for around 30% of consumers. |
| Versatility and energy use | Check the exact cooking functions and dish-compatible accessories; assess energy-use claims against the stated appliance and food load. | If this will be my appliance for several cooking tasks, I want its extra functions to suit what I actually make. Around 30% of consumers prioritise that versatility and consider energy use. |
Compact ovens can have different heating systems. Tefal lists convection for the Optimo OF445840, while De'Longhi lists bake and grill functions for the EO12012.
If your recipe calls for fan-assisted cooking, check that the exact model’s specifications or manual state a convection or fan mode.
A 12-, 19- or 23-litre capacity describes volume, not the usable width and height for your particular baking dish.
Measure the dish, including its handles, and compare it with confirmed internal dimensions or dish-clearance information before buying.
Electrical Safety First warns that ovens and grills can overload an extension lead when used alongside other high-power appliances.
Follow the oven’s manual, check the rating of any permitted extension lead and everything connected to it, and keep flammable materials away from the hot appliance.
Repair and parts arrangements need checking for the exact oven, rather than inferred from its brand. Tefal states that the Optimo OF445840 is eligible for its repairability commitment, subject to its conditions and parts availability.
Check the model’s warranty, repair arrangements and parts information before choosing it.
Tefal’s Optimo OF445840 is a 19-litre countertop model with a stated convection mode.
The SDA1608 is listed as a 23-litre convection mini oven.
The EO12012 is a 12-litre conventional countertop-oven option for cooks prioritising a small appliance.
No. Check the exact model’s function list: Tefal states that the Optimo OF445840 has convection, while De'Longhi lists bake and grill functions for the EO12012 without establishing a fan mode.
Measure your ovenproof dish, including its handles and height, as well as the worktop space available for the appliance and its required clearances. Compare the dish with confirmed internal dimensions or ask the manufacturer or retailer about fit; litre capacity alone is not enough.
Only if the appliance instructions permit it and the extension lead can safely support everything connected to it. Electrical Safety First warns that using ovens alongside other high-power appliances can overload an extension lead; check the lead’s stated rating rather than assuming the setup is suitable.
Check the exact model’s installation instructions before buying. Which? describes mini ovens that plug into a standard socket, but Electrical Safety First notes that some ovens require hardwiring; ask a qualified electrician if your intended setup is uncertain.
For relevant product requirements in Great Britain, UK government guidance dated 31 March 2026 says CE marking continues to be recognised alongside or in place of UKCA marking. That guidance covers England, Scotland and Wales; Northern Ireland has a different framework, so check the product documentation for the market where you will use the oven.