How To Bake Sourdough Bread In A Cast Iron Dutch Oven | Crust And Crumb

Baking sourdough in a cast iron Dutch oven means preheating the covered pot hot, loading scored dough into it, baking covered to trap steam, then uncovering to brown the crust.

A cold pot ruins the loaf before it ever hits the oven. The Dutch oven works because a heavy, preheated vessel walls the bread in steam during the first rise in the oven, then lets that same trapped heat build a thick, blistered crust once the lid comes off. Get the preheat and the lid timing right, and even a modest home oven turns out bakery-style loaves.

A cast iron or enameled cast iron pot in the 5 to 7 quart range handles a standard round boule. Lodge’s bread guidance, Williams Sonoma’s recipe method, and Food & Wine’s review of Lodge’s double Dutch oven all point to the same core rhythm: hot pot, covered bake, uncovered finish. The sections below walk through the exact temperatures, the timeline, and the mistakes that flatten a loaf.

What Temperature And How Long Do You Bake It?

Most sourdough loaves bake between 450°F and 500°F (230°C to 260°C), covered for roughly the first 20 minutes and uncovered for the last 15 to 25. Skeppshult’s sourdough guide calls for preheating at 450°F to 500°F, baking covered 20 to 25 minutes, then uncovered 15 to 20 minutes. A common method preheats the pot to 500°F (260°C), bakes covered about 20 minutes, then drops to 450°F (230°C) for another 20 to 25 minutes with the lid off.

Lodge recommends a different wrinkle: preheat the Dutch oven about 40 minutes at a temperature 50°F higher than your recipe calls for. For a less dark bottom crust, Lodge suggests 20 minutes lid-on, 10 minutes lid-off, then a final 10 minutes on a baking rack once the loaf leaves the pot.

Those numbers are starting points, not laws. Ovens run hot or cool, and a dark enameled interior browns faster than bare cast iron. Watch color, not the clock, past the 15-minute mark of the uncovered phase.

Step-By-Step Baking Sequence

Preheat the covered Dutch oven as the oven comes up to temperature, then load the proofed, scored dough into the searing vessel and manage the two bake phases. The order matters more than any single number, because the covered phase builds steam and the uncovered phase builds crust.

1. Place the empty Dutch oven, lid on, in a cold oven and heat to 500°F (260°C) or your recipe’s temperature plus 50°F. Give it about 40 minutes so the cast iron fully saturates with heat.
2. Pull on oven mitts or heavy gloves. The pot and lid reach temperatures that burn skin on contact.
3. Transfer the proofed dough into the hot pot. Parchment paper is commonly recommended because it makes the drop safer and cleaner.
4. Score the loaf right before baking so it expands in a controlled direction instead of splitting at random.
5. Lid on, bake covered for about 20 minutes. The trapped steam feeds oven spring and keeps the crust thin early on.
6. Remove the lid and continue 15 to 25 minutes to brown and fully set the crust. Lodge’s version swaps in 10 minutes lid-off plus 10 minutes on a rack.
7. Cool on a wire rack at least 1 hour before slicing. Cutting early lets steam escape and gums up the crumb.

When it works, the loaf has risen noticeably in the covered phase and the crust turns deep amber in the open one. If your bottom crust scorches, that’s a sign to lengthen the lid-on window or add the rack finish. A well-fitted lid is what makes the whole method work; without it, steam leaks out and the rise stalls. If you’re still shopping for a vessel that holds heat and fits a tight lid, our tested roundup of the best cast iron for sourdough baking breaks down which pots handle these temperatures. Lodge’s own bread tips spell out the rack-finish trick that rescues a dark bottom.

Which Dutch Ovens Work, And What Goes Wrong?

Both bare cast iron and enameled cast iron Dutch ovens handle sourdough, and enameled versions behave almost identically in the oven. The technique assumes a conventional oven and a tight-fitting lid.

The hazards are real, though. A lid with a plastic knob or non-oven-safe parts can fail at bread temperatures — some lid materials top out around 375°F. Not preheating long enough weakens oven spring and crust quality. Pulling the lid too early cuts the rise short. And rapid temperature change can crack enamel coatings, so never plunge a hot pot into cold water. For sources on the bake itself, Lodge’s bread article covers cast iron timing, while Williams Sonoma’s recipe demonstrates the full Dutch oven method from mix to cool. Once you’ve dialed in the timing, the same pot works for week after week of loaves. For a closer look at how each model behaves under this kind of heat, Lodge’s guidance on bread in cast iron is worth a read: Lodge’s tips for making bread in cast iron.

Common brands at the 5 to 7 quart size include Le Creuset, Lodge, and Staub. Size matters: 5 to 6 quarts is often treated as the standard for a single loaf.