Cast Iron vs. Carbon Steel: 6 Months Cooking With Both

I cooked with a cast iron and a carbon steel pan side-by-side for six months. The result was less clear-cut than the cookware forums suggest — both have a real place.

The internet has decided that carbon steel is "better" cast iron. That's an oversimplification. After six months running a 12" Lodge cast iron and a 12" Made In carbon steel through the same recipes, both have specific strengths. Here's how to decide.

Where cast iron wins

Searing thick steaks — the thermal mass holds temperature when cold protein hits the pan. Long braises and stews — same thermal mass advantage (though a Le Creuset Dutch oven is even better for those). Oven work at 500°F+. And the price — a $25 Lodge does 80% of what a $150 enameled cast iron does.

Where carbon steel wins

Daily use — lighter, heats faster, more forgiving mid-cook. Eggs and delicate proteins — a well-seasoned carbon steel pan is nearly as nonstick as the best traditional nonstick. Stir-fries — the fast heat response matches the technique. Ergonomics — thinner walls and a longer handle make it pleasant to maneuver.

My current rotation

Cast iron 12" for steaks and oven-finishing. Carbon steel 10" for daily use — eggs, veg, stir-fries, weeknight chicken. A Le Creuset Dutch oven for stews and braises. One quality nonstick for pancakes and crepes only.

Seasoning, plainly

Both pans season the same way: coat thinly with neutral oil, heat past smoke point, repeat 3–5 times before first use. After cooking, wash with hot water and a brush (mild soap is fine despite forum wars), dry on stovetop, apply a thin oil coat. Forum lore overcomplicates this — the simple version works.

What to buy

If you only buy one: a 10" Lodge cast iron at $25. It does enough that you can decide later whether to add carbon steel. If you cook 5+ nights a week: add a 12" carbon steel — Made In, Misen, or Matfer Bourgeat, $80–150.

Cast iron and carbon steel aren't competitors — they're complementary. A serious home cook eventually owns both. Skip the most expensive options in both categories.