Induction Cookware Compatibility: How to Check If Your Pan Will Work

If you have just moved into a home with an induction hob, the first question is usually whether your existing pots will work. The short answer: if a magnet sticks firmly to the base of the pan, it will work on induction. If the magnet slides off, it will not. That test takes two seconds and it is the only one you really need.

This guide explains why induction behaves that way, how to read a cookware label without getting lost in marketing language, and which Ciwete pieces are built for induction from the start.

Why induction only heats magnetic cookware

An induction hob is not a hot plate. Under the glass sits a copper coil that generates a rapidly alternating magnetic field. When you place a pan on top, that field induces circulating electric currents inside the pan's base — eddy currents — and the resistance of the metal turns those currents into heat. The pan itself becomes the heating element; the glass stays comparatively cool.

This only works if the base material can carry a magnetic field. Ferromagnetic metals such as magnetic grades of stainless steel and cast iron respond strongly. Aluminum, copper and glass do not respond at all, which is why a plain aluminum pan sits on an induction hob and does nothing.

The two-second magnet test

• Take any ordinary fridge magnet and press it against the outside of the pan's base — not the interior cooking surface.
• If it clings, the pan is induction-compatible. A weak, slippery grip usually still works but may heat slowly.
• If it falls off, the pan will not heat on induction.

Test the base, not the sides. Many pans have a magnetic bottom layer bonded to a non-magnetic body, and the interior of a stainless pan is often a non-magnetic 18/10 grade while the exterior ply is magnetic.

What actually makes a pan induction-ready

Cookware makers solve the magnetism problem in two ways: a bonded steel disc riveted or welded to the bottom, or a fully clad construction where the whole body is built from layers.

Fully clad — often sold as tri-ply or 3-ply — sandwiches a conductive aluminum or copper core between two layers of stainless steel. The aluminum core spreads heat sideways quickly so you do not get a hot ring in the middle of the pan, while the outer stainless layer provides both durability and the magnetic response induction needs. Because the layers run up the walls as well as across the base, the sides heat too, which matters for reducing sauces and for browning food that sits above the base line.

The practical difference between a disc-bottom pan and a fully clad pan shows up when you cook, not on the spec sheet. A disc-bottom pan tends to run hotter directly over the coil; a clad pan evens out faster and holds temperature more steadily when you add cold ingredients.

Which Ciwete cookware works on induction

Every Ciwete stainless steel and enameled cast iron piece in the range is built on a magnetic base, so the magnet test passes on all of them. A few examples drawn from the current catalogue:

The stainless pieces are also dishwasher safe and oven safe, which matters more than it sounds: a fully clad pan with a riveted steel handle can go from the hob straight into the oven without a plastic handle melting in the heat.

What will not work on an induction hob

• Pure aluminum or aluminum-core pans with no steel base — nothing to magnetise.
• Copper cookware, including most traditional copper saucepans and lined copper pans.
• Glass, ceramic and earthenware casseroles.
• Some budget nonstick pans: the nonstick coating is fine, but an aluminum body without a bonded steel disc is not.
• Thin, single-layer stainless pans with a non-magnetic 18/10 body and no magnetic outer ply.

A useful shortcut when shopping: product listings almost always state induction compatibility in the title or the first bullet, because it is the single most common reason a pan gets returned. If the listing is silent, the magnet test on the base settles it.

If your pan is not induction-ready

You have three options. Use an induction interface disc — a thin magnetic steel plate that sits between the hob and the pan and transfers heat indirectly; it works, but it is slower and adds another surface to clean. Keep non-magnetic pans for the oven, where induction status is irrelevant. Or replace the pieces you use daily, which for most kitchens means one frying pan and one saucepan rather than a whole set.

Getting the best out of stainless cookware on induction

• Preheat on medium, not high. Induction delivers energy into the base extremely quickly. Stainless steel has no nonstick coating to warn you visually, so start at medium and give the pan a minute.
• Match the pan to the ring. A 12-inch pan centred on a small induction circle will heat unevenly and the outer edge will lag. A base that matches or slightly exceeds the ring performs best.
• Expect a faint hum. A low buzzing sound on higher settings is normal for induction and for multi-layer bases. It is not a defect.
• Lift, do not slide. Dragging a stainless base across glass scratches the hob. Lift the pan to move it.
• Dry the base before use. Water between the base and the glass can leave mineral marks that bake on.
• Let it cool before washing. Thermal shock can warp a base, and a warped base loses contact with the hob and heats unevenly.

Frequently asked questions

Can I use an 18/10 stainless steel pan on induction?

Yes, as long as the pan has a magnetic outer layer or a bonded steel base. 18/10 refers to the chromium and nickel content of the cooking surface, which is not itself strongly magnetic, but in a fully clad pan that surface is bonded to magnetic stainless on the outside.

Is cast iron induction-compatible?

Yes. Cast iron is ferromagnetic, so a magnet sticks and the hob heats it efficiently. Enameled cast iron works the same way — the enamel is a coating, and the iron underneath responds to the field. Note that cast iron holds heat for a long time, so lower settings are usually enough.

Why does my induction hob switch off mid-cook?

The most common cause is a pan that is too small for the ring, or a base that is not perfectly flat. Some hobs also cut out if they detect no cookware within a few seconds, or if the base is only partially magnetic. Try a larger pan or a different ring before assuming the hob is faulty.

The takeaway

Induction compatibility is a material question, not a brand question: magnetic base, and it works. A fridge magnet against the underside of the pan tells you more than any label. If you are building a kit for an induction kitchen, prioritise fully clad stainless and cast iron, buy the two or three sizes you actually cook with, and you will not have to think about it again.

This article was researched and written with AI assistance, reviewed by the Ciwete SEO Team.