Hydration × flour

80% Hydration Organic Bread Flour

Very open irregular crumb with large holes. Very moist, glossy. Focaccia-like texture when pan-baked.

⚠ Outside Organic Bread Flour's typical range (6477%) — read below for handling

Is 80% hydration right for Organic Bread Flour?

Organic Bread Flour's workable hydration range is 6477%. Its absorption multiplier is 0.99× bread flour. 80% is above Organic Bread Flour's typical range. The dough will be slack and may not hold shape in a free-form hearth loaf. Either reduce hydration to 77%, or blend Organic Bread Flour (40–60%) with bread flour for structural support.

Absorption math for Organic Bread Flour at 80%

A recipe written for bread flour at 80% hydration, when substituted with 100% Organic Bread Flour, becomes 79% effective hydration (because Organic Bread Flour absorbs 1% less water). Same as conventional bread flour but allow 2-3% more proofing time (slightly weaker gluten on some batches). Autolyse 45-60 min. 3-4 stretch-and-folds.

Technique at 80% hydration

Dough is sticky and slack. Requires 4+ coil folds. Wet hands throughout all handling. Shape only after cold retard. Free-form shaping becomes difficult — consider pan shapes.

Calculator pre-set to 80%

Weights below assume 100% Organic Bread Flour. For blends, use the main calculator on a recipe page.

Flour to add
450 g
Water to add
350 g
Salt
10 g
Levain @ 100%
100 g
Total dough
910 g
Effective hydration
80%
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 80% hydration guide →

Sources: King Arthur Baking — Organic Bread Flour specs; Hamelman, Bread (3rd ed.); Robertson, Tartine Bread.