Sourdough Ciabatta with Large Open Crumb: No Yeast Needed

Ciabatta is the bread that made me fall in love with high-hydration doughs. Those massive, irregular holes. That paper-thin, crackly crust. The chewiness that makes it perfect for sandwiches, for dipping in olive oil, for just tearing off chunks and eating plain. And when you make it with sourdough instead of commercial yeast, the flavor goes to a completely different level.

Fair warning: this is not a beginner bread. The dough is wet. Really wet. It'll stick to everything. You'll probably want to throw it out the window on your first attempt. But if you stick with it, the results are absolutely worth the struggle. Let's break it down.

What Makes Ciabatta Different

Ciabatta — Italian for "slipper" — is defined by three things: extremely high hydration (80-85%), minimal shaping, and a relatively short fermentation that preserves the large gas bubbles. Where most sourdough recipes ask you to carefully shape a tight boule, ciabatta wants you to handle the dough as little as possible. Every touch pops those precious bubbles.

Understanding High Hydration

If you've been baking at 70-75% hydration and the dough feels manageable, prepare for a different experience. At 82% hydration, the dough behaves more like a thick batter than traditional bread dough. It doesn't hold its shape on the counter. It oozes. It's gloriously, terrifyingly alive.

The key to working with high-hydration dough is wet hands and confidence. Flour is the enemy here — adding flour to your hands or surface defeats the purpose of high hydration. Keep a bowl of water nearby and dip your hands constantly. If you want to understand the science behind hydration levels, our hydration guide explains it all.

Full Recipe: Sourdough Ciabatta

Ingredients

• 500g bread flour (high protein, 12-13% — the extra gluten is essential)
• 410g water (82% hydration, room temperature)
• 100g active sourdough starter (at peak, bubbly and domed)
• 10g salt
• 10g olive oil (optional — adds tenderness and flavor)

Method

Mix (evening): Combine flour and 390g of the water in a large bowl. Mix until no dry flour remains. Cover and autolyse for 45-60 minutes.

Add starter: Add the starter and remaining 20g of water. Squeeze and fold the dough in the bowl for 2-3 minutes until the starter is fully incorporated. The dough will feel shaggy and loose. That's perfect. Rest 30 minutes.

Add salt and oil: Sprinkle salt over the dough, drizzle the olive oil if using. Perform a series of pinches across the dough, then fold it over itself several times. The dough will start to feel more cohesive. Rest 30 minutes.

Coil folds (2 hours): Perform 4 sets of coil folds at 30-minute intervals. For each fold: wet your hands, slide them under the center of the dough, lift the middle while the ends fold underneath. Rotate 90 degrees and repeat. That's one set.

After the first two sets of coil folds, you should notice the dough starting to hold together better and feel slightly more elastic. By the fourth set, it should feel pillowy and jiggly, with visible bubbles starting to form on the surface and sides.

Bulk fermentation (2-3 more hours): After the last fold, leave the dough completely undisturbed. Watch for a 70-80% volume increase. The surface should be bubbly and domed, and the dough should jiggle like a waterbed when you tap the bowl. This is the key indicator for ciabatta — you want maximum gas retention.

Turn out and divide: Generously flour your work surface with a mix of bread flour and rice flour. Gently pour the dough out of the bowl. Do not pull or stretch it — let gravity do the work. The dough will spread into a rough rectangle.

Shape (barely): Using a well-floured bench scraper, divide the dough into 2-3 pieces. For each piece, fold the left third over the center, then the right third over that, like folding a letter. That's it. That's your shaping. Flip them seam-side down onto a floured parchment-lined tray.

Final proof (45-75 minutes): Cover loosely and let the shaped ciabattas proof at room temperature. They'll spread sideways — that's expected. They're ready when they look puffy and you can see bubbles just under the surface. A gentle poke should leave a slow-filling indent.

Bake: Preheat your oven to 240C (465F) with a baking stone or steel if you have one. For steam, use a tray of ice cubes on the bottom rack (ciabatta is too flat for a Dutch oven). Slide the parchment with the ciabattas directly onto the stone. Bake for 22-26 minutes until deep golden with some charred spots on the flour. No need to remove steam — ciabatta wants a thin, delicate crust, not a thick shattering one.

Cool: Transfer to a wire rack. Ciabatta cools faster than a round boule because of its flat shape. You can cut into it after 30-45 minutes.

Troubleshooting Your Ciabatta

The crumb is tight with small holes

Three possible causes: not enough hydration, insufficient bulk fermentation, or too much handling during shaping. Make sure you hit that 80%+ hydration, wait for the full jiggly dome during bulk, and resist the urge to shape aggressively.

The dough is completely unmanageable

You're probably not using enough water on your hands, or your flour protein is too low. Keep those hands wet, and switch to a strong bread flour. Also, make sure your autolyse is long enough — 45 minutes minimum. The gluten needs time to develop before you start folding.

The ciabatta is too flat

Likely over-proofed during the final proof, or your starter wasn't active enough. Shorten the final proof by 15-20 minutes and make sure your starter passes the float test. If flat loaves are a recurring problem, check our flat sourdough guide for a full diagnosis.

Ciabatta is one of those breads where the process teaches you as much as the result. You learn to read dough at its most untamed, to trust fermentation, and to let go of the need for perfect shapes. When you tear open a ciabatta and see those wild, irregular holes glistening with moisture, you'll understand why this bread has been worth every sticky, messy attempt.