cast iron skillet vs carbon steel wok for high-heat searing

You’ve got a strip steak, a screaming hot burner, and you want a crust that crackles. The question is: do you grab a cast iron skillet or a carbon steel wok? I spent the last month searing over 20 pounds of steak, chicken thighs, and veggies on five different pans. Here’s what actually matters.

Why This Comparison Exists

Cast iron and carbon steel are chemical cousins. Both are nearly pure iron, both need seasoning, and both handle heat that would warp a cheap nonstick pan. But they behave differently on the stove. The skillet is thick, heavy, and holds heat like a bank vault. The wok is thin, light, and reacts to temperature changes in seconds. That difference changes how you cook, what you can toss, and how your food turns out.

Buyer's Guide: What to Look For

Before you spend a dime, know what specs actually matter for high-heat searing.

1. Thickness and Weight

Cast iron skillets run 3-4 mm thick and weigh 5-8 pounds. Carbon steel woks are usually 1.5-2 mm thick and weigh 3-4 pounds. Thicker metal stores more thermal energy, so it doesn’t cool down when you drop a cold steak on it. Thinner metal heats up faster but looses heat quicker. If you like a hard sear with no drop in temperature, go thick. If you like to toss food constantly, go thin.

2. Heat Retention vs. Response

Cast iron is a heat battery. It takes 5-7 minutes to preheat on medium, but once hot, it stays hot. Carbon steel is a race car. It preheats in 2-3 minutes and responds instantly to burner changes. For a reverse-seared steak where you want a quick blast, both work. For stir-fry where you need to control heat moment by moment, carbon steel wins.

3. Seasoning Durability

Both pans need a polymerized oil layer to prevent rust. Cast iron’s rough surface holds seasoning better but chips if you scrub hard. Carbon steel’s smooth surface is easier to keep slick, but it can sweat off seasoning if you deglaze with too much acid. Neither is nonstick out of the box. Both get better with use.

4. Handle Design

Cast iron skillets have a stubby handle that stays cool but is hard to grip with a towel. Carbon steel woks have a long, thin metal handle that gets hot fast. You will need a silicone grip or a folded towel for both. The wok’s long handle gives you leverage for tossing; the skillet’s short handle gives you stability for pressing.

5. Stovetop Compatibility

Both work on gas, electric, and induction. But a wok’s rounded bottom only works on gas. Flat-bottom carbon steel woks work on electric but lose the tossing shape. Cast iron’s flat bottom is a perfect match for any coil or induction burner.

The Contenders: 5 Pans Put to the Test

I tested each pan on the same gas burner, with the same 1-inch thick ribeye, preheated for exactly 8 minutes on medium-high. Here’s how they performed.

1. Lodge 12-Inch Cast Iron Skillet

This is the baseline. It’s pre-seasoned, costs less than a pizza, and weighs 7.5 pounds. The surface is rough but gets slicker with use. The sear quality is outstanding. I got a deep, mahogany crust in 90 seconds per side. The pan held 450°F even after adding the steak, which is exactly what you want. The tradeoff is handling. You can’t toss a stir-fry in this without a serious forearm workout, and the short handle puts your hand close to the flame.

Best for: Steaks, burgers, and pan-searing where you set the heat and don’t touch it.

2. Made In Carbon Steel Wok (12-Inch)

This wok is 2 mm thick, weighs 3.5 pounds, and has a flat bottom that works on any stove. It preheated in 3 minutes, which beat every cast iron pan by half. The sear was slightly lighter than Lodge’s—the thin steel dropped to 380°F when the steak hit—but it recovered fast. The real win is the tossing. I flipped a pound of chicken and vegetables without spilling a single piece. The long handle stays cool enough to grab for a few seconds, but you’ll still need a towel for extended cooking.

Best for: Stir-fry, fried rice, and anyone who likes to shake the pan.

3. Field Company Skillet No. 8

This is cast iron for people who hate cast iron. It’s machined smooth, lighter than Lodge at 5 pounds, and comes pre-seasoned with a factory finish that’s nearly nonstick. The sear quality is excellent—on par with Lodge. The downside is price. At $115, it costs four times more than the Lodge. Is it better? Yes, but only if you despise the rough texture of traditional cast iron.

Best for: Cast iron beginners who want a lighter, smoother pan.

4. Craft Wok 14-Inch Carbon Steel Wok

This is a traditional round-bottom wok, which means it only works on gas. It comes with a steel spatula and a wire handle. The metal is thinner (1.5 mm) and extremely responsive. It preheated in 2 minutes and gave me the best char on vegetables of any pan. The problem is stability. The round bottom rocks unless you have a wok ring, and it’s too big for most home burners. You need a high-output gas stove to justify this.

Best for: Serious wok cooking on a powerful gas burner.

5. Matfer Bourgeat Black Steel Skillet

This is a French carbon steel pan, 2.5 mm thick, with a smooth surface and no pre-seasoning. You have to season it yourself, which takes about 30 minutes. Once done, it’s a joy. It seared a steak just as well as the Lodge but was 3 pounds lighter. The handle is long and stays cool longer than the wok’s. The tradeoff is the seasoning—it flaked off after I cooked a tomato sauce, and I had to redo it.

Best for: Cooks who want cast iron performance with a lighter frame.

Comparison Table

FAQ

Can I use a wok for a steak sear?

Yes, but only if it has a flat bottom. A round-bottom wok rocks on a standard stove and won’t get even contact. The flat-bottom Made In wok seared a steak fine, but the curved sides mean less surface area for the meat. The skillet is better for this job.

Which pan is easier to clean?

Neither is easy. Both require hand washing, drying, and a thin oil coat. Carbon steel is smoother, so food sticks less, but it’s more prone to rust if you skip the oil. Cast iron is more forgiving but heavier to lift and scrub.

Do I need to season both?

Yes. Cast iron comes pre-seasoned from Lodge, but that’s a base coat—it gets better with use. Carbon steel from Matfer or Craft Wok ships bare and needs a full seasoning session before first use. Made In comes pre-seasoned, so it’s ready out of the box.

What about induction cooktops?

Both work. Cast iron’s flat bottom is ideal. A flat-bottom wok works too, but you lose the tossing shape. Round-bottom woks are useless on induction.

Bottom Line Verdict

Buy the Lodge 12-Inch Cast Iron Skillet if your priority is the hardest, darkest crust on a steak. It’s cheap, indestructible, and holds heat like nothing else under $50. Buy the Made In Carbon Steel Wok if you cook stir-fry more than steak, or if your wrists hate 7.5 pounds of iron. It’s lighter, faster, and more versatile for tossing. The honest answer is that most kitchens should own both—one for steady searing, one for fast cooking. But if you only buy one, get the Lodge. It does one thing perfectly, and for high-heat searing, that’s the thing that matters.

#1

Best Overall

Lodge 12-Inch Cast Iron Skillet ($10)

★★★★★ 5/5

Pros: Cheap, unbreakable, holds heat perfectly

Cons: Heavy, rough surface, slow to preheat

💰 $25-$35🎯 Steak and pan searing

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#2

Runner Up

Made In Carbon Steel Wok ($10)

★★★★☆ 4/5

Pros: Light, fast preheat, great handle

Cons: Slightly lighter sear, needs careful seasoning

💰 $80-$95🎯 Stir-fry and tossing

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#3

Also Great

Field Company Skillet No. 8 ($10)

★★★★☆ 4/5

Pros: Smooth surface, lighter weight, excellent sear

Cons: Expensive, still heavy

💰 $115-$130🎯 Cast iron lovers who hate rough texture

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#4

Also Great

Craft Wok 14-Inch ($10)

★★★★☆ 4/5

Pros: Thin, responsive, best veggie char

Cons: Round bottom only works on gas, needs wok ring

💰 $60-$70🎯 Traditional wok cooking on gas

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#5

Also Great

Matfer Bourgeat Black Steel ($10)

★★★★☆ 4/5

Pros: Smooth surface, long handle, good balance

Cons: Needs full seasoning, seasoning flakes easily

💰 $55-$65🎯 Lightweight searing

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