Who this suits

Gentle-reheat dessert makers

If custard, sauces and other thick foods are your main use, prioritise microwave-only operation, reduced power settings and controls that make short heating intervals practical. Stir between intervals and check the temperature before serving.

Small-kitchen multi-function cooks

If you also expect to bake, grill or crisp food, a countertop combination microwave offers those additional modes. For custard, you still need to check how easily the appliance switches to microwave-only heating.

Integrated-kitchen renovators

If the appliance must fit a planned cabinet opening, start with the exact model’s installation dimensions and requirements. A larger built-in cavity does not, by itself, make warming a small bowl of custard easier to control.

What matters when buying

For custard, check the microwave-only controls first. Then decide which other cooking modes you would use and whether the appliance needs to sit on a worktop or fit into cabinetry.

Concern What to check Who this matters to
Controllable custard warming Look for microwave-only operation, reduced power settings and controls that allow short heating intervals. If custard is my main use, I want to pause and stir rather than leave a thick food heating unattended. Around 50% of consumers would put that control first.
Other cooking modes Check which grill, convection or air-fry modes you would actually use and whether they can be selected separately. I also want one worktop appliance for occasional baking, grilling or crisping, not just reheating. Wider cooking options would be the primary need for roughly 30% of consumers.
Fit and capacity Measure the worktop or cabinet opening, door clearance and the space required around the exact model; compare these with your usual dishes. My appliance must fit the kitchen and accommodate the bowls or dishes I use. For around 20% of consumers, that fit would come before extra functions.

Buying pitfalls

  • Judging gentle warming by maximum wattage alone

    Maximum output does not tell you how easily you can reduce microwave power, interrupt heating and stir custard. Which? assesses microwave heating speed and evenness separately in its testing.

    Check the microwave-only power controls and use short intervals with stirring; do not assume an additional cooking mode makes reheating gentler.

  • Assuming every combination programme offers the same controls

    Settings differ by model. Smeg UK says its cited combined mode does not allow microwave power and convection temperature to be set independently.

    Read the exact model’s manual and confirm how to select microwave-only mode and a reduced power setting before relying on it for custard.

  • Choosing cavity capacity without checking installation space

    A countertop microwave and a built-in compact oven require different spaces, even if either can hold a bowl of custard.

    For a countertop model, check its external dimensions, door clearance and ventilation instructions. For a built-in model, match its installation dimensions to the cabinet specification.

  • Overlooking the electrical setup

    Electrical Safety First identifies countertop microwaves as appliances requiring a UK three-pin plug with a fuse and warns against overloading extension leads with high-power appliances.

    Follow the manufacturer’s electrical and installation instructions, use an appropriate socket and stay present while food is heating.

Brands to consider for these appliance types

Panasonic

Panasonic offers freestanding combination microwaves, including the 27L NN-CT54JWBPQ, for buyers considering microwave, grill and convection functions on a worktop.

  • Panasonic lists five microwave power settings, a 1300W grill and 100–220°C convection for the NN-CT54JWBPQ.
  • Choose the model for controls and modes you will use, rather than assuming its additional functions change how custard should be warmed.

Smeg

Smeg’s MOE34CXIUK is a 34L freestanding appliance with microwave, grill and fan-cooking functions.

  • The model offers several cooking modes for households that want more than reheating.
  • Smeg UK says microwave power and convection temperature cannot be set independently in its cited combined mode. Check the exact controls and use microwave-only mode when that separate control matters.

Russell Hobbs

Russell Hobbs offers freestanding combination microwaves, including the 23L RHM2366B.

  • Russell Hobbs lists 900W microwave output, five power levels, a 1000W grill and a 1700W oven function for the RHM2366B.
  • Check the model’s external dimensions and whether its controls suit your preferred short-interval reheating routine.

Neff

Neff’s N70 C24MR21G0B is a built-in compact oven with microwave function for a planned kitchen installation.

  • Neff lists a 45L cavity and 900W maximum microwave power for this model.
  • Its stated installation dimensions are 455 × 596 × 548mm; cabinet compatibility must be checked before ordering.

Bosch

Bosch’s Series 8 CMG778NB1 is a built-in compact oven with microwave function for households planning an integrated appliance.

  • Bosch lists a 45L cavity and 900W maximum microwave power for this model.
  • Confirm cabinet dimensions and installation arrangements; Bosch also notes that microwave output is regulated to 600W during longer operation.

Joybuy product choices

These choices include worktop combination microwaves for wider cooking and built-in models for fitted kitchens. For custard, check each model’s microwave-only controls and installation requirements against your routine and space.

Toshiba MW3-SAC23SF(MB) 23L air-fry combination microwave

Toshiba MW3-SAC23SF(MB) 23L air-fry combination microwave

For worktop cooking beyond reheating, check that its microwave-only controls allow the short, reduced-power intervals you want for custard.

The product title lists 900W and a 1000W grill. Confirm the cooking modes in the exact manual, along with the appliance’s dimensions and ventilation requirements.

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Hoover HO38FL7NWBXUK H-Microwave 300 built-in 20L microwave with grill

Hoover HO38FL7NWBXUK H-Microwave 300 built-in 20L microwave with grill

For a fitted kitchen, check how readily you can select reduced microwave power and interrupt heating to stir custard.

Match the cabinet opening and ventilation arrangement to Hoover’s instructions, and check the short-timer and pause controls in the exact manual.

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CDA VM452SS built-in 25L microwave with grill and convection

CDA VM452SS built-in 25L microwave with grill and convection

For an integrated kitchen where grill and convection functions would also be useful, check the microwave-only power and timing controls before choosing it for custard.

The product title lists 900W microwave output. Confirm the required cabinet opening and installation instructions for this built-in model.

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DAEWOO SDA2618GE 26L 5-in-1 air-fryer combination microwave

DAEWOO SDA2618GE 26L 5-in-1 air-fryer combination microwave

For worktop use that includes air-frying and other cooking as well as reheating, confirm that the manual provides a microwave-only setting suited to short custard-warming intervals.

Check its external dimensions, ventilation clearances and how its heating controls are adjusted before ordering.

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Common questions

Which setting should I use to warm custard?

Use microwave-only mode at a reduced power setting if the model offers one, heating in short intervals and stirring between them. Check the temperature before serving rather than relying on an automatic programme to judge when a thick food is ready.

Should I use grill, convection or combination mode for custard?

Microwave-only mode gives you the more relevant power control for this task; grill and convection modes serve other cooking purposes. Check the exact manual before using a combined programme: Smeg UK says microwave power and convection temperature cannot be adjusted independently in its cited combined mode.

What if the custard is for a baby?

Follow food-safety guidance for the baby’s food rather than serving it straight from the microwave. The NHS advises stirring microwaved baby food thoroughly to remove hot pockets and checking its temperature before feeding.

What electrical setup does a countertop combination microwave need?

Check the appliance’s plug and follow its installation instructions. Electrical Safety First says countertop microwaves must have a UK three-pin plug with a fuse and advises against using an extension lead where high-power appliances could overload it.