Who this choice affects

Small-worktop leftover reheaters

If a microwave must fit into a restricted kitchen space, its external width and depth matter more to the initial choice than its cavity rating. Check placement space separately from the room needed for a dish inside.

People using an existing bowl or plate

If you already have a favourite dish for cooked carrots, measure it before choosing a microwave. The turntable and the space around it need to let that dish rotate freely.

People who want a straightforward reheating routine

Simple timing controls can make small portions easier to manage, but they do not replace checking the food. GOV.UK advises heating reheated food until it is steaming hot all the way through.

What to check before buying

For a microwave mainly used to reheat cooked carrots on a limited worktop, check placement space first, then dish fit and the controls you would use regularly.

Concern What to check Who this matters to
Worktop footprint Measure the intended spot against the microwave’s external width, depth and height; check its manual for placement and ventilation clearances. I have very little worktop left and need the appliance to fit without crowding the space. Roughly 42% of consumers would put worktop fit first.
Dish fit Compare your usual bowl or plate with the turntable and check that it can rotate freely. If I already use a particular dish for leftovers, I want to keep using it rather than change how I serve the carrots. Around 33% of consumers would make dish fit their primary concern.
Reheating controls Choose controls you can set accurately for a small portion, and follow food instructions for stirring or standing where applicable. I want a repeatable routine without mistaking a warm surface for food heated throughout. About 25% of consumers would prioritise controls and the reheating routine.

Common buying mistakes

  • Choosing by cavity litres alone

    A lower capacity does not guarantee a smaller footprint. According to their manufacturers’ dimensions, the 17L Russell Hobbs RHM1731B is 452 × 355 × 262mm, while the 20L Panasonic NN-ST21QWBPQ is 440 × 324 × 258mm.

    Compare external measurements with your worktop before using cavity capacity to narrow the choice further.

  • Assuming a 20L microwave will take your usual bowl

    Capacity describes internal volume, not whether a particular dish can turn. Panasonic specifies a 255mm turntable for the NN-ST21QWBPQ; Russell Hobbs specifies a 24.5cm turntable for the RHM1731B.

    Measure the dish you normally use and check that the chosen model leaves it room to rotate.

  • Warming the outside but not checking the centre

    Reheated carrots need to be hot throughout, not just at the edges. GOV.UK advises reheating food until it is steaming hot all the way through; Food Standards Agency guidance also says to follow applicable microwave instructions for stirring and standing.

    Use a microwave-safe dish, stir where practical, follow any relevant standing instruction and check the centre before eating.

  • Choosing extra cooking modes for a reheating-only job

    A combination microwave can add grill and convection functions, but it also needs its own worktop space. Panasonic lists its NN-CT54 combination model at 520 × 395 × 310mm.

    Consider those additional modes if you will use them; otherwise, compare solo models against the space and dishes you already have.

Relevant brands to consider

These model examples show why dimensions, dish fit and controls are more useful than a brand name alone when worktop space is limited.

Panasonic

Panasonic UK & Ireland lists the NN-ST21QWBPQ as a 20L, 800W solo microwave measuring 440 × 324 × 258mm, with a 255mm turntable.

  • Its five power levels and Quick 30 control offer options for setting a short reheating time.
  • Do not assume another Panasonic model has the same footprint: its NN-CT54 combination microwave measures 520 × 395 × 310mm.

Russell Hobbs

Russell Hobbs describes the RHM1731B as a 17L, 700W manual solo microwave with two dials, five power levels and a 24.5cm turntable.

  • The manufacturer states that this model accommodates a round plate up to 26.5cm, giving plate users a specific measurement to check.
  • Its 452 × 355 × 262mm exterior shows why the 17L rating should not be taken as a worktop measurement.

Toshiba

Toshiba Lifestyle UK lists 20L solo models with different control options, including the 800W MM-MM20P and MM2-EM20PF.

  • The MM-MM20P has five power levels; the MM2-EM20PF lists ten power levels and preset controls.
  • Before choosing either for a tight space, check the exact model’s external dimensions and placement requirements.

Joybuy microwaves for this use

These solo microwaves are options to compare for reheating leftovers. The larger-capacity models may be relevant if dish space takes priority, but measure each appliance and check its placement requirements before choosing one for a restricted worktop.

Russell Hobbs RHM2063-AH black digital microwave

Russell Hobbs RHM2063-AH 20L 800W digital microwave, black

Consider this solo model if you want digital controls for routine leftover reheating. Compare its size with your available worktop, measure your usual dish against the turntable and check the required ventilation clearance.

View on Joybuy
Midea MMOP01MZ-WH white solo microwave

Midea MMOP01MZ-WH 20L 700W manual solo microwave, white

Consider this model if you prefer manual controls for reheating. Check its exact external measurements and ventilation clearance, and confirm that your usual bowl will rotate inside.

View on Joybuy
Midea MMOP01MZ-BK black solo microwave

Midea MMOP01MZ-BK 20L 700W solo microwave, black

Consider this model for small-portion reheating if its size suits your worktop. Confirm the controls and timer for this exact variant before choosing it, as well as dish fit and placement clearance.

View on Joybuy
Hisense H25MOBS7HUK black digital solo microwave

Hisense H25MOBS7HUK 25L 900W digital solo microwave, black

Consider this model if accommodating a larger dish matters more than minimising the appliance’s size. Measure the worktop carefully and check both dish clearance and the model’s placement requirements.

View on Joybuy
Hisense H23MOBS5HUK black solo microwave

Hisense H23MOBS5HUK 23L 800W solo microwave, black

Consider this model if you need to check a larger dish against the cavity as well as the appliance against your worktop. Confirm the controls for this exact model before purchase, and allow for its required placement clearance.

View on Joybuy

Frequently asked questions

Should I compare microwave capacity or external dimensions first?

Compare external dimensions first when worktop space is the constraint, then check whether your dish fits. Panasonic UK & Ireland specifies its 20L NN-ST21QWBPQ at 440 × 324 × 258mm; Russell Hobbs specifies its 17L RHM1731B at 452 × 355 × 262mm. Allow for the chosen model’s placement requirements too.

Do I need a combination microwave to reheat cooked carrots?

A solo microwave is sufficient for this reheating task; consider a combination model if you will also use its grill or convection functions. For a sense of the space involved, Panasonic lists its NN-CT54 combination model at 520 × 395 × 310mm.

How do I check that reheated carrots are ready to eat?

Check that the carrots are steaming hot all the way through, including at the centre. GOV.UK gives this advice for reheated food, while Food Standards Agency guidance says to follow applicable microwave instructions for stirring and standing.

Should I heat the same cooked carrots repeatedly?

Plan to reheat only the portion you intend to eat. GOV.UK food-hygiene guidance for businesses advises reheating food only once and heating it until it is steaming hot throughout.