Hydration × flour

70% Hydration Durum Semolina

Medium cells with some larger bubbles. Noticeable holes appearing. Chewy, moist, balanced.

✓ Within Durum Semolina's workable range (6572%)

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Is 70% hydration right for Durum Semolina?

Durum Semolina's workable hydration range is 6572%. Its absorption multiplier is 1.02× bread flour. At 70%, you are in the sweet spot — the dough will handle predictably and produce the crumb described above.

Absorption math for Durum Semolina at 70%

A recipe written for bread flour at 70% hydration, when substituted with 100% Durum Semolina, becomes 71% effective hydration (because Durum Semolina absorbs 2% more water). Long autolyse (60+ min) — durum is slow to hydrate fully. Firm dough: 68-72% hydration max. Use coil folds rather than stretch-and-folds. Shape with wet hands. Excellent for pan di Altamura-style boule shaping.

Technique at 70% hydration

Dough becomes visibly softer and stickier. Use wet hands or bench scraper. Starts requiring more careful handling to avoid degassing. Autolyse 45-60 min helps develop structure.

Worked water math for a 500 g batch

Durum Semolina ingredient weights for 500 g flour at 70% hydration
Durum Semolina500 g (100%)
Water350 g (70%)
Salt10 g (2%)

Add your levain on top of these weights; the calculator below subtracts the flour and water it already contributes so the bench numbers land at 70% exactly.

What Durum Semolina gives you at 70%

At 70% hydration you can expect an open, custardy crumb with irregular holes and good chew. A medium dough: three to four sets of stretch-and-folds in the first two hours build the structure, and a light dusting of flour is enough for shaping. It handles predictably.

Durum Semolina at 70% — FAQ

How much water do I use for Durum Semolina at 70% hydration?

Multiply the flour weight by 0.7. For a 500 g batch of Durum Semolina that's 350 g water, plus about 10 g salt (2%). Durum Semolina absorbs 1.02× as much water as white bread flour, so it behaves close to a straight bread-flour dough.

Is 70% hydration right for Durum Semolina?

Yes — Durum Semolina's workable range is 65–72%, and 70% sits inside it, so the dough handles predictably and gives an open, custardy crumb with irregular holes and good chew.

What crumb will Durum Semolina at 70% give me?

Expect an open, custardy crumb with irregular holes and good chew. Medium cells with some larger bubbles. Noticeable holes appearing. Chewy, moist, balanced.

Is Durum Semolina at 70% beginner-friendly?

This hydration is rated intermediate. A medium dough: three to four sets of stretch-and-folds in the first two hours build the structure, and a light dusting of flour is enough for shaping. It handles predictably.

Calculator pre-set to 70%

Weights below assume 100% Durum Semolina. For blends, use the main calculator on a recipe page.

Flour to add
450 g
Water to add
300 g
Salt
10 g
Levain @ 100%
100 g
Total dough
860 g
Effective hydration
70%
How the math works

Total water = flour × hydration %. Your levain contributes 50 g flour + 50 g water — both count toward the totals. You add only the remainder as fresh flour and water.

Salt % is computed on total flour weight, not final-dough flour.

Open 70% hydration guide →

The gear that makes the math work

A short, honest baking kit. The scale matters most — every weight on this page is in grams. The Dutch oven is what turns a good crumb into a great crust.

  • Digital kitchen scale (0.1 g)

    Baker's percentage is by weight, not volume — a 0.1 g scale is what makes the math on this page accurate.

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  • Dutch oven / combo cooker

    Traps steam for the first bake phase — the single biggest factor in oven spring and a blistered, glossy crust.

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  • Banneton proofing basket

    Wicks moisture and holds shape during the final proof, so high-hydration dough doesn't spread flat.

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  • Bread lame

    A sharp lame scores clean ears — the cut that decides whether the loaf opens up or bursts at the side.

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  • Bench scraper

    Steel scraper handles wet, sticky high-hydration dough without tearing the gluten you just built.

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  • High-protein bread flour

    The math assumes ~12–14% protein. Real bread flour absorbs the hydration you calculate — all-purpose won't.

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  • Danish dough whisk

    Mixes shaggy, high-hydration dough in seconds without the gluey mess of a spoon or your hands.

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🎧 Or learn the craft by ear

The numbers here are the what; a good baking book is the why. An Audible trial gets you any title free — Michael Pollan’s Cooked(the “Air” chapter is the best story ever told about why bread rises) is a perfect first listen.

Start a free Audible trial →

As an Amazon Associate, SourdoughHydration earns from qualifying purchases at no extra cost to you. More on how this is funded.

Sources: Molino Grassi — Italian durum semolina specs; Hamelman, Bread (3rd ed.); Robertson, Tartine Bread.