Induction: how to tell whether a pan will work
Induction is the one hob type that rejects pans outright, and the test takes five seconds.
What this covers
- How induction heats
- The magnet test
- Stainless is not automatically magnetic
- Aluminium and copper need a base plate
- Base flatness and contact
- Base diameter and hob rings
- Noise is normal
- Why sets state it explicitly
- Buying for a future move
How induction heats
An induction hob generates a magnetic field that induces a current in the pan base, and the pan itself becomes the heat source. The hob surface stays comparatively cool. Because the mechanism depends on magnetism, a pan that is not magnetic simply will not heat.
The magnet test
Hold a fridge magnet against the base of the pan. If it sticks firmly, the pan will work on induction. If it holds weakly or not at all, it will not. This is more reliable than reading the material, because what matters is the specific alloy used for the base.
Stainless is not automatically magnetic
Some stainless alloys are magnetic and some are not. Cookware intended for induction uses a magnetic grade on the exterior base for exactly this reason. This is why two stainless pans that look identical can behave differently on an induction hob.
Aluminium and copper need a base plate
Neither is magnetic, so pans made from them need a bonded magnetic disc on the base to work. Many do have this, and the listing will say so. Without it, they are unusable on induction regardless of how good they are elsewhere.
Base flatness and contact
Induction needs good contact across the base. A warped or heavily domed base heats unevenly and can buzz. This is one reason thermal shock, such as running cold water into a hot pan, is worth avoiding on induction more than on gas.
Base diameter and hob rings
A pan much smaller than the ring may not be detected at all, as hobs have a minimum size threshold. A pan much larger will only heat over the ring area. Matching pan size to ring size matters more on induction than on any other hob type.
Noise is normal
Induction can produce a hum or a buzz, particularly with clad pans at high power, as the layers vibrate slightly. It is not a fault. Heavier, better-bonded pans are generally quieter.
Why sets state it explicitly
Because it is a binary compatibility question rather than a matter of degree, every listing here states induction compatibility taken from the manufacturer specification. It is the first thing to check if you cook on induction and the least important if you do not.
Buying for a future move
If there is any chance of moving to induction, buying induction-compatible now costs nothing extra in most ranges and avoids replacing a whole set later. Induction-compatible pans work perfectly well on gas and electric too.
How this applies when you are buying
Stainless has no coating to wear out, which is why it lasts, and no release, which is why food sticks if the pan is not properly preheated. Heat the dry pan first, add fat, wait for it to shimmer, then add food; it will release when it is ready. Multi-clad means an aluminium or copper core between steel layers for even heat.
Tri-ply and multi-clad stainless sets that take high heat, go in the oven and tolerate metal utensils.
On the shelf at the moment
These come straight from the Rainbow Restaurant Equipment Supplies shelf as you read this, not from a list typed when the article was written, so the prices and the availability are current.
- Circulon A1 Series Induction Pots and Pans Cookware Set, 9-Piece, Graphite – $269.99
- Stainless Steel Cookware Set,Tir-Ply Pots and Pans Set – $109.99
- All-Clad D3® Stainless Steel 7 Piece Cookware Set- Made in USA- Includes Frying Pans, Saucepan – $599.99
Where to go from here
All of the above is the reasoning we use behind the counter at Rainbow Restaurant Equipment Supplies when someone asks. If you are weighing up two options and the listing does not settle it, ask: +1 212-966-2895 during opening hours, or service@restaurantpro.shop, answered within one business day.
If you order from us
Standard shipping is a flat $19.95 anywhere in the United States, and it is free once the order passes $150. Weekday orders normally leave Rainbow Restaurant Equipment Supplies the next working day, with three to seven business days in transit after that. Unopened items can go back within 30 days of delivery. Shipping Policy · Refund and Returns
Related sections of the shop
Related reading
- Tri-ply stainless: what the layers actually do – Stainless steel conducts heat badly. Everything about how good stainless pans are built follows from that.
- Ceramic, PTFE and the free-from claims on cookware – The labels are about what is absent. Knowing which absence matters makes the comparison easier.
- Detachable handle sets: who they suit and what you give up – A format designed around storage space rather than around cooking.
Who wrote this
Written by the team at Rainbow Restaurant Equipment Supplies, a cookware sets shop at 272 Bowery, New York, NY 10012. The guidance here is what we tell customers across the counter, and it is based on the products we actually stock and the questions we are actually asked. Where we are not certain of something, we say so rather than fill the gap. More about the shop · Contact us