Ciabatta Guide: The High-Hydration Bread

Ciabatta means “slipper” in Italian, a fitting name for its broad, elongated shape. A good loaf has a crisp crust and a mixture of larger and smaller air cells. The goal is a light, well-baked crumb, not an empty shell or a contest for the largest hole.

Ciabatta is a useful way to learn hydration and wet-dough handling and kneading. The dough should become cohesive and elastic even though it remains sticky. You generally divide it into rectangles and extend them gently, rather than shaping it into a tightly tensioned boule.

This is a technique guide. For a complete bake, choose one of the linked formulas below and keep its flour, yeast type, temperatures, dough weight, and schedule together. Percentages alone do not supply all those instructions.

Start with One Complete Formula

Two accessible starting points demonstrate that there is more than one workable method:

• King Arthur’s Rustic Italian Ciabatta uses bread flour and an overnight biga. It yields two loaves and offers a baking-sheet option as well as a stone.
• The ciabatta on pages 8–9 of King Arthur Baking School’s Bread Baking Basics workbook uses all-purpose flour, an overnight preferment, and hand mixing with folds. Its total water is approximately 80% of its total flour.

Follow the selected recipe’s whole process. Substituting a wetter dough from one formula into the proofing and baking schedule of another can change the result substantially.

Biga and Autolyse Do Different Jobs

A biga is a yeasted pre-ferment. It contributes fermented flour and water to the final dough. Its consistency, yeast dose, ripeness, and share of the total flour all matter; “biga” does not specify a single universal hydration.

An autolyse is a rest after mixing flour and water. It promotes hydration and changes dough handling before subsequent mixing. A strict autolyse excludes added yeast and salt. King Arthur’s autolyse trials show benefits can differ by formula and that adding all the ingredients before a rest can also be useful. That latter method is a mix-and-rest approach rather than a strict flour-and-water autolyse.

Do not describe a flour-water rest as automatically “partially fermented” or guaranteed to make a sourer loaf. Fermentation involves microbial activity; hydration and enzymatic changes are not the same process. A long rest can change the dough considerably, but it is not a substitute for controlling the recipe’s leavening and temperature.

Hamelman’s third-edition table of contents lists a specific “Ciabatta with Overnight Autolyse.” Use the full recipe from that edition for its rest temperature, water division, and mixing sequence. An overnight method should not be improvised by leaving any flour-water mixture in any room for 12–16 hours. Our autolyse guide explains the basic distinction between a hydration rest and fermentation.

What Hamelman’s Stiff-Biga Method Actually Shows

In the first-edition publisher excerpt, the stiff-biga ciabatta has 73% total hydration, 2% salt, and 20% prefermented flour; the biga itself is 60% hydration. It ripens around 70°F for 12–16 hours. The method calls for a three-hour bulk with folds after one and two hours, then about 90 minutes of final proof at 75°F. It includes inverting proofed pieces for loading. These are instructions for that formula, not universal limits on touching or turning ciabatta.

The excerpt’s yeast percentages in the overall professional formula refer to fresh yeast, while its home column uses instant yeast. Do not copy a percentage from one column and label it as the other yeast type.

Keep the Biga Water in the Total

Here is an arithmetic example using 73% total hydration, 20% prefermented flour, and a 60%-hydration biga. It illustrates allocation, not a complete recipe or yeast schedule.

The final mix needs 610g of new water because 120g is already in the biga. Adding 730g on top of the biga would produce 850g total water, or 85% hydration, rather than 73%.

The same accounting applies to sourdough country bread or any other prefermented dough. Record every flour and water contribution before deciding what remains to add.

Bassinage Is an Option, Not a Requirement

Bassinage means adding some water after the dough has begun developing. It can make a wet dough easier to mix: work the initial mixture until it gains cohesion, then introduce the reserved water gradually, letting each addition incorporate. Follow the recipe and your mixer’s dough-speed and load limits rather than transferring a commercial spiral-mixer setting to a home machine.

There is no universal rule that all ciabatta must reserve 10% of its water. King Arthur’s professional ciabatta formula, for example, combines its ingredients in the final mix without prescribing a mandatory water reserve. The baking-school hand method above also works without one. Water does not suddenly prevent gluten development at 73% or 80% hydration.

State the denominator when reserving water. For 1,000g flour and 800g total water:

• Reserving 10% of the water means holding back 80g and initially using 720g.
• Reserving water equal to 10% of the flour means holding back 100g and initially using 700g.

Both splits can be described precisely, but they are not the same. If a preferment is present, subtract its water first as well. Do not add a water reserve a second time after reaching the formula’s total.

Choose Flour for the Recipe

Bread flour is a useful option for wet dough, but all-purpose flour is not automatically incapable of making ciabatta. The baking-school recipe is a direct example of an approximately 80%-hydration dough made with King Arthur all-purpose flour.

Flour performance depends on more than a protein percentage. Strength, extensibility, milling characteristics, and absorption affect how much water a particular flour handles well. “All-purpose” also covers products with different characteristics. Start with the flour in your chosen formula; if substituting, expect to adjust water or handling rather than assume every brand behaves identically.

Neither a 12% protein threshold nor an Italian Tipo 0 label guarantees an open crumb. Use the bread-flour comparison and flour-brand guide to understand the choices. Stronger flour does not replace adequate mixing or fermentation, and raising hydration does not repair an underdeveloped dough.

Build Strength, Then Protect the Gas

“Handle less” is useful advice for a fully proofed loaf. It is incomplete advice for the entire process. Wet dough needs enough strength to retain gas, and well-timed folds can provide that strength.

In King Arthur’s hand-versus-machine ciabatta trial, both methods developed an 80%-hydration dough successfully. The hand-mixed dough received repeated folds; it did not remain an unworkable batter simply because it was wet. The trial also illustrates that dimpling and handling effects depend on the method, rather than every touch necessarily ruining the crumb.

During bulk fermentation, use the folds called for by your recipe. Stretch without tearing, and stop a fold when the dough resists. Later in bulk, watch for expansion, bubbles, and enough cohesion to hold the mass together. A timer supports those observations; it does not replace them.

At division, flour the work surface and scraper so the dough releases without tearing. Cut cleanly into the intended portions and extend them gently. Keep enough flour on the surface for handling, without kneading large amounts of bench flour into the dough. The important distinction is between building structure during mixing and preserving it during final handling.

Use the transfer method in your recipe. Some ciabatta is proofed on floured cloth or boards and inverted onto a peel or parchment; some stays on its baking parchment. Turning is not inherently destructive, but unsupported lifting, sticking, or repeated repositioning can deflate a fragile piece. Prepare the landing surface before moving the loaf.

A bench scraper helps support and divide sticky dough. It cannot make rough handling harmless, but it is often more useful than adding flour until the dough feels dry.

Bake for Your Loaf and Oven

Ciabatta is commonly baked hot with moisture available early in the bake, followed by enough drying to develop the crust. Use the actual recipe’s temperature and time: loaf thickness, portion weight, oven, and whether you use a stone, steel, or sheet pan affect the schedule. A single 25–30-minute bake cannot cover all versions and loaf sizes.

Follow an oven-compatible steam method. If the recipe uses a separate steam pan, use an appropriate metal vessel, protect your hands and arms, and keep water off hot oven-door glass. Do not use a glass or ceramic dish for this purpose. Check parchment and equipment temperature limits as well.

Assess crust color and the baked crumb rather than expecting one internal temperature to prove the crust is dry enough. A thick or tough crust can reflect bake duration, temperature, loaf shape, or cooling conditions; adding more steam is not an automatic cure. Cool the loaves before slicing. The time needed depends on their size, so 30 minutes is not a universal finish line.

Troubleshoot the Whole Process

If your dough is overproofed, adding more water or removing all folds from the next batch does not address the timing problem. Equally, skipping bassinage alone does not diagnose a dense loaf. Change one relevant factor at a time and record what happened.

Ciabatta practice transfers well to other wet doughs, including focaccia. The useful lesson is to match water, development, fermentation, and handling—not to chase a percentage or avoid every touch.