Sourdough without a Dutch oven (3 methods that actually work)

What the Dutch oven actually does

Understanding the physics helps you choose between alternatives. A Dutch oven does two things during the first 15 to 20 minutes of baking:

1. It traps steam. The dough itself releases water vapor as it heats. In an enclosed cast-iron vessel, that steam stays around the loaf instead of escaping into the oven. Steam keeps the crust elastic, which allows the loaf to expand fully (oven spring) before the crust sets and goes rigid. Without steam, the crust sets early and the loaf cannot rise.
2. It radiates intense, even heat. Pre-heated cast iron transfers heat to the base of the loaf aggressively, which drives the rapid initial expansion. A cookie sheet does not do this.

Any setup that does both of these things will produce a comparable loaf. The Dutch oven is convenient because it does both at once. Substitutes either combine two pieces of equipment or accept a small compromise.

Method 1: Cast-iron combo cooker

This is the method most professional bakers recommend if you do not already own a Dutch oven, and it is what we use at home. A combo cooker is a 3.2-quart cast-iron skillet with a deep pan that doubles as a lid (or vice versa, depending on how you orient it). The bread sits in the shallow skillet, the deep pan inverts over the top as a lid.

Why it works better than a Dutch oven for some bakers:

• Easier loading. You set the dough on the flat skillet instead of dropping it into a deep, hot pot. Significantly fewer burned forearms.
• Better scoring. The dough is fully visible when you score it, not down inside a vessel.
• Cheaper. Around $40 for the standard Lodge version versus $80 to $200 for a Dutch oven of comparable cast-iron quality.
• More versatile. The skillet half is a perfectly good 10-inch cast-iron pan. It does everything a regular skillet does.

The Dutch oven alternative

Lodge Cast Iron Combo Cooker, 3.2 Quart

Pre-seasoned, made in the USA, lasts indefinitely. Used by most professional bakers we know who recommend a single piece of equipment for home sourdough. Around $40, which is what makes this the right answer instead of a $150 Dutch oven.

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How to use it for sourdough:

1. Preheat the empty combo cooker in the oven at 500°F for 45 minutes. Both halves stacked.
2. When ready to bake, carefully remove the combo cooker. Set the dough (still on its parchment paper if you used one) onto the shallow skillet half.
3. Score the loaf.
4. Invert the deep half over the top as a lid.
5. Return to oven, drop temperature to 475°F. Bake 20 minutes covered.
6. Remove the lid. Bake another 20 to 25 minutes until the crust is deep mahogany. Internal temperature should read 205–210°F.

Method 2: Baking steel or stone with a steam pan

This is the right answer if you bake other things too — pizza, focaccia, hearth-style breads — because a baking steel or stone is more versatile than a combo cooker. The principle is the same as a Dutch oven, split across two pieces of equipment:

• A baking steel or cordierite pizza stone on the middle rack provides the radiant base heat.
• A cast-iron pan or roasting pan on a lower rack, preheated empty, gets filled with boiling water (or ice cubes) just as the loaf goes in. The vapor creates the steam environment.

Baking steel produces slightly better oven spring than stone because it conducts heat faster. Stone is more forgiving and cheaper. Either is fine.

How to use this method:

1. Place the steel or stone on the middle rack. Place an empty cast-iron pan or heavy roasting pan on the lowest rack. Preheat the whole oven to 500°F for at least 45 minutes.
2. Boil a kettle of water just before baking. Or have a tray of ice cubes ready.
3. Slide the loaf (on parchment) onto the steel. Quickly pour about a cup of boiling water into the lower pan, or toss in a handful of ice cubes. Shut the door.
4. Bake 20 minutes at 475°F. Open the oven briefly to release residual steam.
5. Bake another 20 to 25 minutes until deep brown.

Method 3: The inverted bowl (use only if you have nothing else)

Place the dough on a sheet pan lined with parchment. Score it. Then invert a deep stainless-steel mixing bowl over the top, completely covering the loaf. The bowl traps steam from the dough itself.

This works. Sort of. The results are noticeably worse than the other two methods:

• Crust is paler and softer, even with extended baking.
• Oven spring is less dramatic. Expect a flatter loaf with less ear.
• The bowl does not radiate heat the way cast iron does, so the bottom crust will be pale.

Use this method to confirm sourdough is worth pursuing before you buy equipment, or if you genuinely cannot store any more kitchen items. Past that, the $40 combo cooker is the better answer.

Quick comparison

Related reading

• The best flour for a sourdough starter — Before you worry about baking, get the starter right.
• Why is my sourdough dense? — If your crust is right but the crumb is wrong, this is the next question.
• Best sourdough starter kit — The gear worth owning beyond a vessel for the oven.

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