Can You Use Cast Iron Pans on an Induction Hob?
Yes, and cast iron is actually one of the best materials you can use on an induction hob, not merely a compatible one. It is ferromagnetic throughout, couples efficiently with the electromagnetic field, and its thermal mass makes it ideal for the tasks induction does well: searing, sustained high-heat cooking, and even heat retention. There are a few handling considerations specific to induction, but none that should put anyone off.
Why cast iron works particularly well on induction
Induction compatibility requires a ferromagnetic base: one that responds strongly to a magnetic field. Cast iron, being essentially an iron alloy, is ferromagnetic throughout its entire structure. Unlike some stainless steel pans where only the base layer is magnetic, or non-stick pans with a small bonded induction disc, a cast iron pan presents its full surface area to the coil. This produces efficient, even electromagnetic coupling across the whole base.
The thermal mass of cast iron (its weight and density) works well with induction’s instant-response control in a complementary way. Induction responds to power changes within fractions of a second, but cast iron’s mass buffers rapid temperature swings, meaning the heat in the pan itself remains stable even as the coil cycles. For searing, braising, and any cooking that benefits from consistent, sustained heat, this combination produces excellent results.
Excellent heat retention
Cast iron holds heat exceptionally well once up to temperature. Food placed into a hot cast iron pan on induction stays at cooking temperature even when a cold ingredient is added, because the pan’s mass absorbs and re-releases heat without the temperature dropping sharply.
Even heat distribution
Once fully up to temperature, cast iron distributes heat evenly across the cooking surface. Combined with induction’s precise power control, this makes it well suited to anything requiring a consistent temperature across the full base: pancakes, steaks, frittatas.
Induction-compatible without modification
Every cast iron pan, raw or enamelled, works on induction without needing a special base, induction disc, or any modification. If you already own cast iron cookware, it transfers directly to induction with no investment required.
Quiet operation
Heavy cast iron damps vibration more effectively than lighter pans. The buzzing that some lightweight pans produce on induction is significantly reduced or absent with cast iron, since the pan’s mass absorbs the vibration that would otherwise become audible noise.
Raw cast iron vs enamelled cast iron
Raw (seasoned) cast iron
The traditional form. A rough, textured surface built up from layers of polymerised oil over time. Works perfectly on induction. The rough base texture is the main consideration. It can leave fine scratches on glass-ceramic over time if dragged rather than lifted.
Needs seasoning maintenance: dry thoroughly after washing, apply a thin oil layer, and heat briefly. Reactive to acidic foods until well-seasoned. Excellent non-stick performance when properly seasoned.
Enamelled cast iron
The same cast iron core beneath a vitreous enamel coating. Works identically on induction. The smooth enamel base is gentler on the glass surface than raw cast iron, with less risk of scratching.
No seasoning required. Non-reactive to acidic foods. More expensive than raw cast iron. The enamel can chip if dropped or subjected to thermal shock. Avoid placing a cold enamelled pan on a hot zone.
The one real consideration: protecting the glass surface
The glass-ceramic surface of an induction hob is hard but not scratch-proof. Cast iron’s weight and rough base texture (particularly on raw seasoned pans) can leave fine surface marks if the pan is dragged across the glass rather than lifted. Over years of regular use this can dull the surface appearance, though it does not affect the hob’s cooking performance.
The solution is simple: always lift cast iron rather than sliding it. Set the pan down squarely on the zone and lift it straight off. Avoid shuffling or rotating the pan on the glass surface. This single habit prevents virtually all surface scratching regardless of how heavy or rough the pan base is.
Cast iron is also slower to heat up than lighter pans, because more energy is needed to bring the pan’s thermal mass up to temperature. On induction, use the Boost setting for the initial preheat, then reduce to your target cooking setting once the pan is up to temperature. For more on using Boost effectively, see when to use Power Boost on an induction hob.
Tips for using cast iron on an induction hob
- Always lift, never slide. This is the most important habit. Set the pan down directly on the zone and lift it straight up when moving it. Dragging across the glass is how scratches happen.
- Preheat gradually. Start at a medium power level and allow the pan to warm through for 2 to 3 minutes before increasing to cooking temperature. Cast iron’s slow heat-up means sudden high heat applied directly to a cold pan can cause uneven thermal stress, particularly in older or thinner pieces.
- Never leave an empty cast iron pan on a high setting. Without food to absorb the heat, cast iron can reach very high temperatures quickly on induction. This can damage non-stick coatings on other pans nearby and is harder on the pan than cooking with food in it.
- Match pan diameter to zone size. A large cast iron skillet on a small zone heats unevenly at the edges. A small pan on a large zone may not couple efficiently with the full coil. Matching diameter improves both efficiency and even heating.
- Keep the glass clean before placing cast iron down. Grit or food debris on the glass surface under a heavy pan is more likely to cause scratching than the pan base itself. A clean hob surface before cooking prevents this.
For a full guide to induction cookware compatibility across all materials, see what cookware materials work best on induction hobs. For guidance on using an induction hob to its full potential with cast iron and other cookware, the induction hob beginner’s guide covers power settings, zone matching, and everyday cooking habits. Browse the CATA induction hob range for current models.
Common questions answered
Will cast iron scratch my induction hob?
It can, if dragged across the glass surface. The rough texture of a raw cast iron base against glass under the weight of the pan is the scratching risk. The solution is simply to always lift rather than slide. Enamelled cast iron has a smoother base and is slightly less likely to scratch, but the same lifting habit applies to both types.
Does cast iron need to be seasoned differently for induction?
No. The seasoning process for cast iron is the same regardless of heat source: dry thoroughly after washing, apply a very thin layer of oil to the cooking surface, and heat in an oven or on the hob until the oil polymerises. Induction’s precise temperature control is actually well suited to maintaining even heat during hob-top seasoning.
My cast iron pan is not heating evenly on induction. Why?
The most likely cause is a size mismatch between the pan base and the induction zone. If the pan significantly overhangs the zone circle, the areas of the base beyond the coil’s active field heat less efficiently. Match the pan diameter to the zone as closely as possible. Also check the base is flat. A warped base reduces contact with the glass and creates uneven coupling.
Can I use a cast iron griddle pan on induction?
Yes, provided the ridged base area is magnetic (all cast iron is) and the pan’s flat rim makes adequate contact with the glass. Ridged griddle pans are among the best uses of cast iron on induction, where induction’s fast response and cast iron’s heat retention combine well for the high, sustained heat that griddle cooking needs. Use a zone that matches the pan’s footprint as closely as possible.
Explore More Kitchen Advice & Buying Guides
Browse our latest articles covering appliance tips, energy-saving advice, and expert guidance – designed to help you choose, use, and get the most from your kitchen appliances.
