High & airy

80% hydration sourdough

At 80% hydration the dough is wet and sticky and needs strong flour and wet hands, but it bakes to a wildly open, custardy crumb — high-hydration territory.

80% solver

Pre-set to 80% — change the flour or starter and the water re-solves. Unlock hydration to explore other targets.

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True hydration75%
Total dough1018g
Flour500g
Water356g
Starter150g
Salt12g

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  • Locked at 80% and starter-aware — the water shown already subtracts the water in your starter.
  • Adjust flour, starter or salt for your batch; copy or print the result.
What 80% is really like

What is 80% hydration sourdough like?

How an 80% dough handles

At 80% the dough is genuinely wet and sticky, and it will spread across the bench the moment you stop supporting it. Dry hands are your enemy here — everything is done with wet hands and a bench scraper. Handled gently and quickly the dough is alive and billowy; handled roughly it degasses and slackens. Speed and a light touch win.

Flour and crumb

This is where flour quality decides the outcome. You need a high-protein bread flour, or to add a little vital wheat gluten; ordinary flour collapses under this much water. Done right, the crumb is spectacular — very open, glossy and custardy, wrapped in a thin, shatteringly crisp crust. It is close cousin to ciabatta and focaccia dough.

Technique notes

Forget kneading entirely: coil folds in the bowl are the only sensible way to build strength. Keep the bulk ferment on the earlier, cooler side so the dough does not over-slacken, shape with minimal handling, and treat a cold overnight retard as essential — a fridge-firm dough is far easier to score and load. Bake hot with plenty of steam.

The numbers above are honest. LoafMath counts the flour and water inside your starter, so 80% here is true hydration, not the flattering figure you get by ignoring the levain. Formulas follow the King Arthur / Bread Bakers Guild standard and are unit-tested.
One loaf

80% hydration sourdough recipe

One loaf of about 1001 g of dough, with a 100% hydration starter counted in. For a different size, change the flour or starter in the solver above and the water re-solves; it can also show ounces or cups.

IngredientWeight
Flour500 g
Water390 g
Ripe starter (100%)100 g
Salt11 g
Total dough1001 g

Why only 390 g of water? The starter brings 50 g of flour and 50 g of water with it, so the dough holds 440 g of water to 550 g of flour, which is 80% hydration.

Method

  1. Mix. Combine the flour and water, then add the ripe starter and salt. Aim for a dough at 24–26 °C; the dough temperature calculator gives you the water temperature.
  2. Build strength. Skip kneading entirely. Coil folds in the bowl, with wet hands, build the strength.
  3. Bulk ferment. About 5 hours for a 24 °C dough, until it has risen 30–50% and looks domed and bubbly. Keep bulk on the earlier, cooler side so the dough does not over-slacken.
  4. Shape. Shape quickly with wet hands, a bench scraper and as little handling as possible.
  5. Proof. Treat an overnight cold retard as essential. A fridge-firm dough is far easier to score and load.
  6. Bake. In a preheated Dutch oven, usually at 230–250 °C, covered and then uncovered to colour. Bake hot with plenty of steam.

Want clock times for each step? The bake-day timeline works backwards from when you want to bake.

Questions bakers ask

80% hydration sourdough FAQ

Is 80% hydration hard to work with?

It is demanding rather than hard. The dough is wet and sticky and wants to spread, so you work with wet hands, a bench scraper and a light touch. Strong flour and a cold retard make it much more manageable.

What flour do I need for 80% hydration sourdough?

A high-protein bread flour, ideally 13%+ protein, or a standard bread flour with a little vital wheat gluten added. Weaker flours cannot hold this much water in an open structure and will bake dense.

Should I cold-retard an 80% dough?

Yes — an overnight cold retard firms the dough so you can actually shape and score it, and it deepens flavour. At this hydration it is close to essential rather than optional.

80% vs 85% hydration sourdough: what changes?

80% is wet and demanding but manageable with strong flour, coil folds and a cold retard. 85% is almost pourable and expert-only, with most of its structure coming from folding and cold. If 80% does not feel comfortable yet, stay there. In grams, for a loaf with 500 g flour and 100 g starter, 85% takes 28 g more water.

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