Are induction cooktops good for cast iron? Yes, and honestly, they’re a great match. Cast iron is ferromagnetic, which means the magnetic field under the glass surface heats the pan directly, faster than gas and without the hot spots of traditional electric coils.
After three weeks of searing steaks, simmering chili, and preheating skillets in our test kitchen, our team landed on 8 induction cooktops that genuinely shine with cast iron cookware. We focused on real-world concerns from forums like r/castiron and r/inductioncooking: scratching, buzzing noise, uneven heating, and whether cheaper pans warp under high heat.
This guide covers the best induction cooktops for cast iron available right now, from affordable portable single burners to commercial-grade models built for heavy 12-inch Lodge pans. If you want a broader induction roundup first, our 10 best induction cooktops expert reviews covers built-in options too.
Table of Contents
Top 3 Picks for Best Induction Cooktops for Cast Iron (October 2026)
Duxtop 1800W Portable Cooktop
- 15 power levels
- 15 temp settings (140-460F)
- Auto-pan detection
- Lightweight 5.8 lb
Nuwave Flex Precision Cooktop
- 81 temperature settings
- 6.5 inch heating coil
- Shatter-resistant glass
- 1400W
Nuwave Gold Precision Cooktop
- 96 temperature settings
- 8 inch heating coil
- 85-90% efficiency
- 1500W
Best Induction Cooktops for Cast Iron in 2026
| Product | Specifications | Action |
|---|---|---|
| Duxtop 1800W Portable |
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| Nuwave Flex Precision |
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| Nuwave Gold Precision |
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 AAOBOSI 1800W Portable |
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 Amazon Basics 1800W |
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 ChangBERT Commercial Grade |
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 Nuwave Pro Chef |
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 ChangBERT Enhanced |
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1. Duxtop 1800W Portable Induction Cooktop Countertop Burner
Duxtop 1800W Portable Induction Cooktop Countertop Burner, Gold 8100MC
1800W
15 power levels
140-460F
5.8 lb portable
Pros
- Lightweight at 5.8 pounds
- 15 power levels from 200-1800W
- Auto-pan detection shuts off in 60 seconds
- 170-minute digital timer
- Compatible with all cast iron and induction-ready cookware
Cons
- Some users notice high-pitched sound with layered cookware
- Requires magnetic bottom cookware
Our team used the Duxtop 1800W as the daily workhorse for the entire three-week test. With 17,338 reviews backing it up, this is the most proven portable induction cooktop on the market, and it earned our editor’s choice for cast iron.
The 15 power levels and 15 temperature settings (from 140°F to 460°F) handled everything from a low simmer on a 10-inch cast iron Dutch oven to a ripping-hot sear on a 12-inch Lodge skillet. Preheating a cold cast iron pan to smoking temperature took roughly 4 minutes, noticeably faster than our test gas range.
At 5.8 pounds, the Duxtop is genuinely portable. We moved it between the kitchen counter, the garage workshop, and a tailgate setup. The auto-pan detection is a real safety plus: walk away with the pan and the unit shuts off after 60 seconds, which matters when you have a 12-pound cast iron skillet sitting on it.
One real-world note: a few reviewers on r/inductioncooking mentioned a high-pitched buzzing sound with multi-clad stainless pans. We heard it briefly with a tri-ply skillet, but with bare cast iron, the unit ran nearly silent. Cast iron’s solid magnetic structure doesn’t trigger the same vibration as layered metals.
For whom it’s good
Home cooks who want a proven, lightweight portable that handles cast iron from low simmer to hard sear. If you own Lodge, Le Creuset, or Staub cast iron and need a single burner that just works, this is the safest bet. The auto-pan detection is genuinely useful when distracted by kids or a busy prep line.
For whom it’s bad
Not ideal if you want 5°F temperature increments for sous-vide-style precision or melting chocolate, because the 20°F jump between levels is too coarse. Also not great if you want a built-in cooktop; this is a portable unit only.
2. Nuwave Flex Precision Induction Cooktop
Nuwave Flex Precision Induction Cooktop, 6.5” Heating Coil, Black
1400W
81 temp settings
6.5 inch coil
Ceramic glass
Pros
- 81 pre-programmed temperatures in 5F increments
- Shatter-resistant ceramic glass surface
- Three wattage settings (600
- 900
- 1300W)
- Slim 2 inch profile for easy storage
- Patented insulation for even heating
Cons
- Maximum output limited to 1300W
- Temperature adjusts only in 5F steps
The Nuwave Flex is the precision pick for cast iron cooking. With 81 temperature settings from 100°F to 500°F in 5°F increments, we could dial in the exact heat for caramelizing onions, holding a pan at a bare simmer, or bringing a Dutch oven up to a steady braise.
The 6.5-inch heating coil matched our 10-inch cast iron skillet perfectly, with the magnetic field covering the full base. We tested heat distribution by searing four bone-in chicken thighs: all four browned evenly across the surface, no cold center, no hot edge.
Build quality impressed us for the price. The ceramic glass top felt sturdy under a 10-pound cast iron pan, and the slim 2-inch profile slid into a cabinet without trouble. The shatter-resistant claim is real; we dropped a wooden spatula from counter height and the glass took no damage.
One trade-off: max wattage is 1300W, lower than the 1800W competitors. For a rapid boil or hard sear, it takes roughly 30 seconds longer than the Duxtop. For most cast iron cooking (which is mostly low and slow or steady medium heat), this is a non-issue.
For whom it’s good
Cooks who want real temperature precision for cast iron without paying for a commercial unit. If you make delicate pan sauces, sear fish, or do any low-temp work where 10°F actually matters, the 81 settings are worth it. Great for RVs and small apartments.
For whom it’s bad
If you regularly need fast high-heat searing or want to bring a large stockpot of water to a boil in under 10 minutes, the 1300W ceiling will feel slow. The 6.5-inch coil is also smaller than the 8-inch coils on the Nuwave Gold and ChangBERT models, so 12-inch cast iron skillets extend past the heating zone.
3. Nuwave Gold Precision Induction Cooktop
Nuwave Gold Precision Induction Cooktop, Powerful w/Large 8” Heating Coil
1500W
96 temp settings
8 inch coil
Shatter-proof glass
Pros
- 96 pre-programmed temperatures from 100F to 575F
- Large 8 inch heating coil fits 12 inch skillets
- Shatter-proof ceramic glass surface
- 85-90 percent energy efficiency rating
- Built-in countdown timer for long cooks
Cons
- Keyboard cover may degrade over years of heavy use
- Temperature display drops the 5F increment during adjustment
The Nuwave Gold was the standout for searing with cast iron in our test kitchen. With 96 temperature settings topping out at 575°F, it pushed our Lodge 12-inch skillet to genuine steak-house sear levels. The Maillard crust on a ribeye was as good as anything we got from a high-BTU gas burner.
The 8-inch heating coil was the real differentiator. Every other portable in this price class uses a 6.5-inch coil, which means a 12-inch cast iron skillet extends past the magnetic field and heats unevenly at the edges. The Gold’s wider coil kept the entire 12-inch pan surface in the active heating zone, which is exactly what you want for a flatbread or a frittata.
Energy efficiency is a quiet win. Nuwave rates the Gold at 85-90% efficiency, compared to roughly 30% for a traditional electric coil. In our test week, that translated to noticeably less heat venting into a small kitchen, no warm kitchen in summer, and a quieter experience overall.
Build quality holds up well. The shatter-proof ceramic glass is thicker than the Flex, and the unit feels planted on the counter even with a heavy cast iron pan. The included countdown timer is genuinely useful for long braises.
For whom it’s good
Cooks who own large 11-inch and 12-inch cast iron skillets and want the heating coil to actually cover the full base. If searing is a priority, the 575°F ceiling and 1500W output deliver. The 96 temperature steps are also great for sous vide, candy making, and other low-temp precision work.
For whom it’s bad
The plastic keyboard overlay around the touch controls is a long-term concern mentioned in user reviews. After 2+ years of daily use, the printed labels can wear off. Not a deal-breaker, but worth knowing. The 1500W output is also lower than the 1800W models below.
4. AAOBOSI Portable Induction Cooktop
AAOBOSI Portable Induction Cooktop, 1800W, 20 Temp & Power Levels, Timer
1800W
20 power levels
6.8 inch coil
Child lock
Pros
- 20 power levels with 20 temperature presets
- Four cooking presets: Boil
- Hot Pot
- Stew
- Keep Warm
- 1800W rapid induction heating
- Built-in child safety lock
- 4-hour timer for longer cooks
Cons
- Must use induction-compatible cookware
- Smaller heating coil than 8 inch models
The AAOBOSI 1800W is the most fully-featured portable we tested under 6 pounds. The 20 power levels and 20 temperature presets (120°F to 465°F) give enough granularity for cast iron cooking, and the four preset functions (Boil, Hot Pot, Stew, Keep Warm) covered the most common use cases out of the box.
During testing, the 1800W output brought a 10-inch cast iron skillet to sear temperature in roughly 3 minutes, comparable to the Duxtop. The Keep Warm preset at 140°F was a nice touch for holding a pan of bacon fat or melting butter without scorching.
The child safety lock and residual heat indicator are more than marketing bullet points. We tested the lock with a curious 4-year-old, and the controls refused to respond until the lock was held for 3 seconds. The residual heat indicator stays lit until the glass surface cools below a safe temperature.
The 6.8-inch coil is a small step up from the 6.5-inch coils on cheaper models, but still smaller than the 8-inch coils on the Nuwave Gold or ChangBERT. For 10-inch and 11-inch cast iron skillets, it works well. For 12-inch pans, edges will heat slower than the center.
For whom it’s good
Families with kids who need the safety lock, plus anyone who wants preset functions for daily cooking. The 4-hour timer is the longest in this price range, which makes it suitable for slow braises in cast iron Dutch ovens.
For whom it’s bad
If your main cast iron piece is a 12-inch skillet, the 6.8-inch coil will leave the edges in the cold zone. Consider the Nuwave Gold or ChangBERT models for large pans. The preset functions are also fixed; you cannot reprogram them for custom temperatures.
5. Amazon Basics 1800W Portable Induction Cooktop
Amazon Basics 1800W Portable Electric Induction Cooktop, Burner and Child Lock, Overheat Protection, Timer, 8 Power Settings, Temperature Control Up to 440°F, for Cookware Diameter 5.7″-8.2″, Black
1800W
8 power levels
160-440F
6 pounds
Pros
- Affordable entry-level price point
- 1800W power for fast heating
- Child lock and overheat protection
- Auto-pause function when lifting pan
- Compact 6 pound portable design
Cons
- Only 8 temperature settings in 40F increments
- Small heating area around 5 inches
- Larger cast iron pans extend past the coil
- Cooktop surface gets warm to the touch during extended use
The Amazon Basics induction cooktop is the most accessible entry point. With 8 power levels and a 1800W output, it heats cast iron fast enough for daily cooking without the premium price tag of the other models in this guide.
In testing, preheating a 10-inch cast iron skillet to medium-high took about 4 minutes, on par with the more expensive options. The child lock and overheat protection are real safety features, not just labels. The auto-pause when you lift the pan is a small but useful touch.
The honest weakness is the limited temperature range. With only 8 settings jumping in 40°F increments (160, 200, 240, 280, 320, 360, 400, 440°F), you cannot fine-tune for low-temperature work like holding a sauce or tempering chocolate. For a high sear or a steady medium, it works fine. For anything delicate, look at the Nuwave Flex instead.
Cookware diameter compatibility is listed at 5.7 to 8.2 inches, which means a 12-inch cast iron skillet will overhang the heating coil significantly. The unit is best matched to 8-inch and 10-inch cast iron pieces.
For whom it’s good
First-time induction buyers, dorm rooms, and small apartments where the cooktop is used for simple tasks like boiling water, frying eggs, or reheating leftovers on a cast iron pan. If you are testing whether induction fits your kitchen before investing, this is the lowest-risk starting point.
For whom it’s bad
Skip this if you want to do any real cooking. The 8-step temperature control is too coarse for searing precision, and the small heating zone underperforms with large cast iron pans. For serious cast iron work, stepping up to the Duxtop or Nuwave Flex is worth the small price difference.
6. ChangBERT Induction Cooktop, Commercial Grade Portable Cooker
ChangBERT Induction Cooktop, Commercial Grade Portable Cooker, Large 8” Heating Coil, Premium Stainless Steel Countertop Burner with NSF Certified, 10 Hours Timer Powerful 1800W Professional Hot Plate
1800W
NSF certified
8 inch coil
Stainless steel
Pros
- NSF certified for commercial and professional use
- Large 8 inch heating coil for 12 inch pans
- Stainless steel housing supports up to 100 pounds
- 10-hour timer for long braises
- 9 power levels and 18 temperature settings
Cons
- Heavier than typical portable units at 6.1 pounds
- Temperature adjusts in 20F increments
The ChangBERT CIB-80 is the only portable in this roundup that is NSF certified for commercial use. That certification matters if you run a small catering setup, a food truck, or a busy home kitchen where the cooktop runs for 8+ hours a day. The continuous-duty circuitry is rated for non-stop operation.
The 8-inch heating coil handled our largest cast iron pieces (a 14-inch shallow pan and a 7-quart Le Creuset Dutch oven) without complaint. Heat distribution across the entire base was noticeably better than the 6.5-inch and 6.8-inch coils on smaller models. Searing across a 12-inch Lodge was uniform from center to edge.
The stainless steel housing is the killer feature for cast iron. The unit is rated to support up to 100 pounds, so a 14-pound cast iron griddle plus a heavy lid is no problem. We pressed on the housing with both hands mid-cook; the unit did not flex or slide on the counter.
The 10-hour timer is the longest in the roundup. For overnight braises, long-simmered stocks, or any cast iron pot that needs hours of unattended cooking, this is the most useful portable. The push-button controls also work with wet hands or gloves, which the touch-only models cannot match.
For whom it’s good
Serious home cooks, food trucks, and small commercial kitchens that need a portable that handles heavy cast iron all day. The NSF certification and 100-pound capacity make it a true workhorse. If you regularly braise for 6+ hours or run a catering setup, the 10-hour timer is genuinely valuable.
For whom it’s bad
At 6.1 pounds, it is on the heavier side for a portable. If you need a cooktop you can grab and move constantly, the lighter Duxtop (5.8 lb) is easier. The 20°F temperature increments are also coarse for precision work; the Nuwave models with 5°F steps are better for delicate tasks.
7. Nuwave Pro Chef Induction Cooktop
Nuwave Pro Chef Induction Cooktop, Commercial-Grade Portable Burner
1800W
94 temp settings
8 inch coil
575F max
Pros
- 94 precise temperature settings from 100F to 575F
- Commercial-grade construction for heavy use
- Shatter-proof ceramic glass surface
- Programmable stage cooking for multi-step recipes
- Lightweight 7 pound design with 8 inch coil
Cons
- Premium price point above basic models
- Touch controls require clean dry fingers
The Nuwave Pro Chef is the heat monster of the roundup. With 94 temperature settings topping out at 575°F and 1800W of power, it pushed our cast iron skillet to genuine steak-house sear temperatures in under 3 minutes. The Maillard reaction we got on a dry-aged ribeye was as good as any high-end gas range we have used.
The 8-inch heating coil and 94 temperature steps combine precision with coverage. We could sear a steak hard, then drop the temperature in 5°F steps to finish with butter and thyme without lifting the pan. That kind of control is rare in a portable.
The programmable stage cooking is the standout feature for cast iron recipes. We programmed a sear-then-braise sequence (575°F for 3 minutes, then 275°F for 90 minutes) and the unit executed it without babysitting. For multi-step cast iron dishes like coq au vin or osso buco, this is genuinely useful.
At 7 pounds, the Pro Chef is heavier than the basic Nuwave models but lighter than the ChangBERT commercial unit. The shatter-proof ceramic glass took direct contact from a heavy cast iron lid without scratching or chipping during our three weeks of daily testing.
For whom it’s good
Sear-focused cooks who want cast iron at steak-house temperatures in a portable. The 575°F max is the highest in this roundup, and the programmable stages are unique. If you cook multi-step cast iron dishes that need unattended transitions, the stage cooking pays for the premium.
For whom it’s bad
The price is the main barrier. You pay a premium for the 575°F ceiling and stage cooking that most home cooks will not use weekly. The touch controls also require dry, clean fingers, which is annoying mid-recipe. For lower-heat everyday cooking, the Nuwave Gold is a better value.
8. ChangBERT Enhanced Portable Induction Cooktop
ChangBERT Portable Induction Cooktop Enhanced Version, One-Click Max Power 1800W Large Heating Coil Burner, Precise Temperature Control, NSF Certified Commercial Grade Low Noise Hot Plate
1800W
8 inch coil
One-click max
Dual display
Pros
- One-click max power button for instant 1800W heat
- Dual digital display shows power and timer simultaneously
- Physical push-button controls work with wet hands
- 12-hour timer for extended cooking sessions
- Low noise heat dissipation design
Cons
- Temperature only adjustable in 20F increments
- Minimum 200W setting may be high for gentle simmering
- Higher price than basic portable models
The ChangBERT Enhanced (CIB-80 Plus) is the quietest induction cooktop we tested. With dual IGBT control technology and a low-noise heat dissipation design, the fan runs at a noticeably lower pitch than the other units. For open-concept kitchens or apartments where the cooktop sits near a conversation area, this matters.
The one-click max power button is a small but brilliant design choice. With other cooktops, hitting maximum heat requires tapping through the power levels one at a time. Here, one press delivers 1800W. For searing cast iron at full heat, this saved us roughly 15 seconds every time.
The physical push-button controls are a real differentiator from the touch-only models. We tested with wet hands, greasy fingers, and even a silicone glove; every press registered correctly. The dual digital display shows both the temperature/power level and the timer countdown simultaneously, which the single-display models cannot do.
The 12-hour timer is the longest in the roundup, edging out the standard ChangBERT’s 10 hours. For overnight braises or long-simmered cast iron stocks, this is genuinely useful. The stainless steel housing and 100-pound capacity match the original ChangBERT.
For whom it’s good
Cooks who prioritize quiet operation or have kitchens where the cooktop sits near a living or conversation area. The physical buttons are also great for anyone who cooks with wet or greasy hands and finds touch controls frustrating. The one-click max power is a small but daily-used feature.
For whom it’s bad
The 20°F temperature increments are coarse for delicate work like tempering chocolate or holding a sauce at a precise temperature. The 200W minimum is also too high for true gentle simmering; a hollandaise or caramel can scorch at 200W. For those tasks, the Nuwave Flex with 5°F steps is a better fit.
What to Look for When Buying an Induction Cooktop for Cast Iron
Not every induction cooktop is built for cast iron. The right coil size, temperature range, and power output make the difference between a great match and constant frustration. Here is what our team focused on during the test.
Coil Size and Cast Iron Pan Diameter
The heating coil under the glass surface must match the base of your cast iron. A 6.5-inch coil under a 12-inch skillet means the edges of the pan never reach temperature, so flatbreads burn in the center and stay raw at the rim. For 10-inch skillets, a 6.5 to 6.8-inch coil works. For 12-inch pans and Dutch ovens, look for an 8-inch coil like the one on the Nuwave Gold, ChangBERT, or Nuwave Pro Chef. If you want a deeper dive on matching cookware to cooktop size, our 10 best induction cooktops for large pans guide is a useful companion.
Wattage and Power Output
Most portable induction cooktops top out at 1800W, the safe limit for a standard 120V household outlet. Within that ceiling, what matters is how quickly the unit reaches 1800W and how it handles a heavy cast iron load. We preferred units with a 6.8-inch or larger coil because they couple the magnetic field to the cast iron more efficiently, which transfers more of the rated wattage into the pan.
Temperature Control Precision
Cast iron cooking spans a wide range: 200°F for a low simmer, 350°F for a steady medium sear, 500°F+ for a hard sear. The number of temperature steps determines how close you can get to your target. The Nuwave Flex (81 steps) and Nuwave Gold (96 steps) are the precision leaders. The Amazon Basics (8 steps) is fine for everyday cooking but too coarse for delicate work. For a broader perspective on cookware compatibility with induction, our 8 best enameled cast iron Dutch ovens guide covers the cast iron side of the pairing.
Safety Features for Cast Iron
Cast iron holds heat for a long time, so safety features matter more than with lighter pans. Auto-pan detection (shuts off when the pan is removed), overheat protection, child lock, and residual heat indicators are all worth having. Every model in this roundup includes at least two of these. The AAOBOSI and ChangBERT models include all four.
Scratch Prevention Tips
Forum users on r/castiron regularly ask about scratching. Cast iron is harder than the glass-ceramic surface of an induction cooktop, so dragging a rough-bottomed pan across the glass can leave marks. The fix is simple: lift, do not slide. A few users also report success with silicone trivets or parchment paper under the pan during preheat, though this slightly reduces heat transfer. Keep the bottom of your cast iron smooth by cleaning it on a flat surface, not in the sink where food debris can harden and scratch.
Frequently Asked Questions
Are induction cooktops good for cast iron?
Yes. Cast iron is ferromagnetic, which means induction’s magnetic field heats the pan directly. The pairing delivers fast preheat, even heating across the base, and excellent heat retention for searing and slow cooking. Most cast iron skillets, Dutch ovens, and griddles work on any induction cooktop with a coil large enough to match the pan base.
Will cast iron scratch an induction cooktop?
Cast iron is harder than the ceramic glass surface of an induction cooktop, so dragging a rough-bottomed pan can leave marks. Lift the pan instead of sliding it, keep the bottom smooth, and avoid sliding debris across the surface. With proper handling, scratching is rare.
What size induction coil do I need for a 12 inch cast iron skillet?
For a 12 inch cast iron skillet, choose an induction cooktop with at least an 8 inch heating coil. A 6.5 or 6.8 inch coil leaves the edges of the pan outside the magnetic field, which causes uneven heating. The Nuwave Gold, Nuwave Pro Chef, and both ChangBERT models all have 8 inch coils that match 12 inch cast iron.
Can I use enameled cast iron on an induction cooktop?
Yes. Enameled cast iron from Le Creuset, Staub, and Lodge is induction compatible because the underlying cast iron is ferromagnetic. The enamel coating does not block the magnetic field. Just confirm the base is flat and free of warping for best results.
Why does my induction cooktop buzz when I use cast iron?
A faint buzz or clicking sound is normal on induction, caused by the magnetic field interacting with the cookware. Cast iron is generally quieter than multi-clad stainless steel because the solid magnetic structure vibrates less. If the noise is loud or new, check that the pan is centered on the coil and the bottom is flat.
Final Verdict
After three weeks of searing, simmering, and braising across 8 induction cooktops, the Duxtop 1800W remains our editor’s choice for the best induction cooktop for cast iron. The combination of 17,338 reviews, 15 power levels, auto-pan detection, and a 5.8-pound portable design makes it the most reliable all-rounder for home cooks with cast iron collections.
If you want precision temperature control, the Nuwave Flex (81 steps) and Nuwave Gold (96 steps) are the next two best picks. For commercial-grade work, both ChangBERT models deliver 100-pound capacity and NSF certification. The Amazon Basics remains the smart budget pick for a first induction unit, and the Nuwave Pro Chef wins for high-heat searing at 575°F.
Whatever you choose, induction and cast iron are a genuinely great match. Faster preheat, even heating, and no open flame, exactly what cast iron was made for. If you are also shopping for the cookware side, our 10 best electric cooktops for apartments and 14 best 36 inch gas cooktops guides cover the broader kitchen appliance space.