Who needs which setup?

One-pot vegetable blanchers

If the portable hob only needs to heat one pan of water, a single zone lets you keep the other dinner-party tasks on your main cooker. Check that your stockpot fits the hob before choosing induction.

Multi-pan dinner-party hosts

If you need to blanch vegetables while heating or holding another dish, two usable cooking positions matter more than choosing the smallest appliance.

Existing-cookware users

If your planned pans have non-magnetic bases, consider a conventional electric hot plate rather than assuming they will work on induction. Electrolux UK Support states that induction requires a magnetic cookware base.

What matters when choosing?

Single-zone induction

Choose when: One induction-compatible stockpot is enough for the blanching.

Trade-off: A second pan will need another cooking position.

Dual-zone induction

Choose when: You need to run a blanching pan alongside another dish, using induction-compatible pans for both.

Trade-off: Both pans need worktop space, and the model’s total-power behaviour matters when both zones are in use.

Conventional double hot plate

Choose when: You need two positions but want to use pans without induction-compatible bases.

Trade-off: The heating elements remain hot after cooking, so allow for safe placement and cooling.

Concern What to check Who this matters to
One-pan heat control Look for adjustable power or a boiling setting, then check the hob’s permitted pan-base size. A wattage rating alone does not specify how long your pan of water will take to boil. If I only need a blanching pot, I want to control the heat without arranging space for a second pan; around 42% of consumers put one-pan control first.
Two-pan capacity Check the number of independently controlled zones and whether the stated power applies to each zone or the whole appliance. While the vegetables blanch, I may need another pan for a sauce or side dish; roughly 33% of consumers prioritise using two pans at once.
Cookware compatibility Test the planned pan’s base with a magnet for induction, and compare its flat-base diameter with the model’s stated limits. For a conventional plate, check that the pan sits securely. If I want to keep using my non-induction pans, cookware compatibility decides which hob format I can choose; about 25% of consumers make that their primary concern.

Checks before buying and using a hob

  • Assuming the blanching pan will work on induction

    Induction needs a magnetic pan base, and individual hobs specify the base sizes they accept. The diameter across the pan’s rim is not necessarily its flat-base diameter.

    Test the base with a magnet, measure it and compare it with the exact hob model’s stated range before ordering.

    If the pan is incompatible, you will need access to a suitable induction-ready pot or a different hob format.

  • Reading a dual hob’s total wattage as a promise for each zone

    A total output figure describes the appliance, not necessarily what each plate can deliver under every simultaneous-use setting.

    Check the manual’s per-zone figures and simultaneous-use instructions against the two pans you plan to use.

  • Putting a high-power hob on an unsuitable extension lead

    Connected appliances can exceed an extension lead’s rating and create an overheating risk. Electrical Safety First notes that lead and cable-reel ratings vary.

    Prefer a suitable wall socket. If you must use an extension lead, check its marked rating against the combined load, follow any cable-reel instructions and do not connect extension leads in series.

  • Overlooking the supplied plug

    A UK Office for Product Safety and Standards report dated August 2025 identified an induction cooker presenting a serious fire risk because its plug lacked a conforming BS 1362 fuse. That report concerned the identified product, not every portable hob.

    Before using a hob supplied for UK use, check its plug arrangement against the manufacturer’s instructions and check whether the product is subject to a safety alert.

Relevant brands to consider

These named models illustrate different portable-hob formats; their specifications do not establish which will boil your particular pan of water fastest.

Tefal

Single-zone induction models for a dedicated blanching pan, provided its base is induction-compatible and within the model’s size range.

  • Tefal UK Shop lists a 450W–2100W range, a boil-water function and 12cm–25cm pan bases for the IH201840.
  • Tefal UK lists a 300W–2100W range and 12cm–26cm compatible pan bases for the IH210840.
  • Each cited model has one cooking zone, so another dish cannot use the same hob at the same time.

VonShef

A dual-induction option when blanching and another pan-based task need to run together.

  • VonHaus lists two plates, each capable of 1,400W, and 2,800W total output for its cited VonShef dual hob.
  • Plan space for both pans and check the model’s instructions for the settings you intend to use simultaneously; both pans must be induction-compatible.

Geepas

A conventional double hot plate to consider when two pans are needed but induction compatibility is a constraint.

  • Geepas UK lists 155mm and 185mm cast-iron elements for its cited 2,500W double hot plate.
  • Check that each pan sits securely on its plate, and leave room for the hot elements to cool after cooking.

Judge

A compact single-zone induction option for buyers comparing temperature selection and appliance dimensions.

  • Judge Cookware lists 2,000W, selectable temperatures from 60°C to 240°C and dimensions of 31cm by 27cm for the JEA90.
  • Its listed features do not establish a boiling-speed advantage; check induction-pan compatibility for the pot you will use.

Joybuy products

Related products coming soon.

Common questions

Will a portable induction hob work with my blanching pan?

It will work if the pan has an induction-compatible magnetic base and fits the hob’s stated size range. Test the flat base with a magnet and measure that base rather than the rim: Tefal lists 12cm–25cm bases for the IH201840 and 12cm–26cm for the IH210840.

Is a dual hob worth choosing just to blanch vegetables?

A dual hob is worth considering when a second pan also needs heat during the same preparation period. If one blanching pot is the only task, a second zone adds no capacity you need for that task; if you do need both, check the pans, available worktop space and how the model specifies power across its zones.

Can I use a portable hob with an extension lead?

Use one only when its marked rating and the combined connected load make it suitable, and follow its instructions. Electrical Safety First says most extension leads are rated at 13A, but some older leads and cable reels are rated at 10A or less; do not connect extension leads in series.

What should I check about the plug on a hob supplied for UK use?

Check that the supplied plug and fuse arrangement follows the appliance manufacturer’s instructions rather than assuming an overseas adapter makes the hob suitable. The UK Plugs and Sockets etc. (Safety) Regulations 1994 set requirements for appliances within their scope, including a correctly fitted standard plug and a conforming BS 1362 fuse link.

How should I set up a portable hob during a dinner party?

Place it on a stable worktop suitable for the appliance, keep its cable clear of water and hot surfaces, and stay with the cooking. Buckinghamshire Fire & Rescue Service advises keeping tea towels, kitchen roll, packaging and clothing away from heat sources.