Ciabatta: The Dough That Shouldn't Work, But Does

Pick up a piece of raw ciabatta dough and it will slide off your hand. Press it against the bench and it sticks. Dust it with flour and the flour disappears into the surface. Every instinct about bread dough tells you this is wrong. But walk away for a few hours, perform the right folds at the right times, and that same sticky mass transforms into something with a thin, crackly crust and a crumb full of irregular holes. The wetness is the point.

What Makes Ciabatta Ciabatta

The name means “slipper” in Italian, a reference to the flat, elongated shape. But the defining characteristic is the crumb: large, irregular holes distributed throughout a thin, open structure. Getting that crumb requires two things working together. First, high hydration (typically 80 to 82%) means the gluten network is stretched loose enough that gas bubbles can expand freely without being squeezed out. Second, a biga (a stiff preferment) contributes flavor and builds the gluten strength the wet dough needs to hold those bubbles in place.

Without the biga, a wet dough at this hydration would not have enough structure to support the crumb. Without the high hydration, the gas bubbles would be smaller and more uniform. Both elements are load-bearing.

The Formula

This produces two ciabatta loaves of roughly 450g each.

Baker’s percentages:

Ingredient	Weight	Percentage
Bread flour (total)	500g	100%
Water (total)	410g	82%
Instant yeast (total)	2g	0.4%
Fine sea salt	10g	2%

Biga (mix 12 to 16 hours ahead):

Ingredient	Weight
Bread flour	100g
Water (cool, 60F / 15C)	55g
Instant yeast	0.5g

Mix the biga ingredients until no dry flour remains. It will be a stiff, shaggy mass. Cover and ferment at room temperature (65 to 70F / 18 to 21C) for 12 to 16 hours. The finished biga should smell sour and yeasty, and feel soft enough to tear easily.

Final dough:

Ingredient	Weight
Bread flour	400g
Water (warm, 85F / 29C)	355g
Instant yeast	1.5g
Fine sea salt	10g
Finished biga (all of it)	~155g

The biga counts as 20% of the total flour weight, which is standard for ciabatta. It affects flavor more than speed at this ratio, which is the goal.

Mixing and Folding

Combine the flour, water, and yeast in a large bowl. Mix until no dry flour remains. Add the salt and tear in pieces of the biga, squeezing each piece between your fingers as you fold it in. This takes two to three minutes of squeezing and folding. The dough should look rough and lumpy at first. After a few folds, the biga will be fully incorporated.

Cover and rest 30 minutes. Then begin coil folds: every 30 minutes for the first two hours of bulk fermentation. See the stretch and coil folds guide for detailed technique. After each set, the dough will feel stronger and more cohesive even though it is still extremely wet.

The important thing with coil folds on a wet dough: use wet hands, not floured ones. Flour on the surface of a very wet dough creates dry patches that do not fully incorporate and show up as dense spots in the crumb.

Bulk Fermentation

Bulk fermentation at room temperature (72 to 75F / 22 to 24C) runs two and a half to three and a half hours total, including the fold time. By the end, the dough should have increased in volume by about 75%, the surface should show bubbles, and the whole mass should jiggle when you shake the container.

Resist the urge to cut bulk short. Under-fermented ciabatta bakes into a rubbery, chewy slab with few holes. The extended bulk is what develops the flavor and builds the open crumb structure.

Dividing and Shaping

This is where ciabatta diverges most sharply from normal bread handling. You do not shape ciabatta the way you shape a boule. Aggressive shaping degasses the dough and destroys the bubble structure you just spent hours building.

Generously flour your work surface (here, flour is correct; you are not incorporating it into the dough, you are preventing adhesion). Gently turn the dough out of the container, letting it fall rather than pulling or stretching. Use a bench knife to divide the dough into two rough rectangles. Work quickly and do not compress the dough.

Flour the tops of both pieces generously. Slide the bench knife under each one to make sure it is not sticking. Gently pull each piece to a slipper shape, roughly 4 by 10 inches (10 by 25 cm). Transfer to well-floured parchment on a baking sheet. The loaves will spread slightly; this is expected.

Proofing and Baking

Proof at room temperature, covered loosely, for 30 to 45 minutes. The dough should look slightly puffier and hold its shape when the pan is tilted gently. Preheat your oven to 500F (260C) with a baking stone or heavy sheet pan inside and a metal pan on the floor.

Score the tops with a very shallow cut, or skip scoring entirely. The open crumb of ciabatta does not rely on a score the way sourdough does; the gas escapes through the existing structure.

Slide the parchment onto the hot surface and pour boiling water into the floor pan to create steam. Bake 10 minutes with steam, then remove the steam pan and reduce heat to 450F (230C). Bake another 15 to 20 minutes until the crust is deep golden and the loaves sound hollow when tapped on the bottom.

Common Mistakes

Adding flour to the bench out of panic. When the dough feels impossibly sticky, the urge to add flour is strong. Do not. Extra flour disrupts the hydration of the surface and creates a crust that separates from the crumb. Use flour only to prevent adhesion, not to stiffen the dough.

Under-fermenting the biga. A biga that has not fully fermented (less than 10 hours at warm temperatures, or made too stiff to ferment evenly) adds little flavor and may not fully incorporate. The finished biga should be soft and aromatic, pulling apart easily. If it is still very firm and smells like raw flour, it needs more time.

Not preheating the stone long enough. Ciabatta needs immediate bottom heat to set the crust and generate oven spring. A stone preheated for only 20 minutes may not be hot enough. Give it 45 minutes to an hour. The difference in the bottom crust is dramatic.

Rough handling during shaping. Every fold and press during the divide and shape step compresses the gas structure you built during bulk. The goal is to move the dough as little as possible. Slide the bench knife; do not press or deflate.

After the Bake

Ciabatta cools quickly because of its shape. Let it rest at least 30 minutes before cutting. The crumb continues to set as it cools; cutting early produces a gummy interior.

The finished crumb should show holes of varying sizes, with the largest holes in the upper two-thirds of the loaf. If the holes are uniform and small, the dough was either under-fermented or handled too aggressively during shaping. If the bottom is dense and the top is open, the oven temperature was too low or the bake time too short.

For more context on how baker’s percentages apply to ciabatta formulas, the baker’s percentages guide shows how to scale this formula to any batch size.