A magnet sticks to your pan, yet the induction hob refuses to respond. Why did the magnet's approval not settle it? Magnetic attraction is a material clue; recognition also depends on the base's size and shape. Check three things before ordering another pan.
We checked official manufacturer guidance on November 9, 2026. This is a cookware-selection guide, not a universal chart of minimum diameters or error codes.
Key points
- Magnetic attraction is a first clue about the base material.
- The advertised diameter can differ from the magnetic base diameter.
- Compare permitted size, base shape and placement with your model manual.
1. The magnet answers the first question
Bosch describes a ferromagnetic base and a magnet check for induction suitability. Check the working base, rather than just the side. Do not decide solely from the word “stainless”; also read the cookware maker's induction-use information. Bosch cookware guidance
Choosing from one magnet test is like hiring after asking only someone's name. Next, ask whether the dimensions fit your hob.
2. Does 24 cm mean the top or the base?
Whirlpool explains that a quoted diameter may describe the top, and can differ from the actual magnetic base area. A small base may not be detected. Quoted diameter versus base
Hypothetical example: Instead of noting only “24 cm” on a listing, look for a separate base diameter. Do not estimate it with a ruler against a photograph or copy another household's zone requirements. Compare it with the permitted cookware sizes in your appliance manual.
3. Must you replace a pan that is not detected?
NEFF says to consider size, material and a flat, smooth base. It also describes a cookware-test function for the relevant products; that menu is not available on every induction hob. NEFF cookware and test guidance
This editorial checklist neither diagnoses a fault nor guarantees heating.
| Check | Look at | Follow up with |
|---|---|---|
| Material | Magnetic base and induction-use marking | Official guidance for the cookware item |
| Size | Top diameter versus base diameter | Your zone's permitted range |
| Shape and position | Base distortion and placement at zone center | Model-specific recognition guidance |
Switch off and let everything cool before inspection or repositioning. This is not a suggestion to touch a hot pan during use.
4. Keep three questions before buying
- Have you checked induction suitability for this exact item?
- Do you know the base diameter to compare with your zone?
- Do you have the model manual to consult if it is not recognized?
If detection still fails, record the cookware and appliance models and any displayed error for the manufacturer. Fill the gap between “a magnet sticks” and “this works appropriately on my hob.”