France · lean

Baguette

Target 68% hydration · baking stone steam · bake at 475°F

The baguette is the technical benchmark of hearth baking — thin elongated loaf with crackling crust, irregular open crumb (cells of varying size), and distinctive scoring pattern. 68% is the traditional French hydration (more conservative than a 75% country loaf because the shape requires more structure). Hamelman's baguette uses 100% bread flour, 68% hydration, 15% poolish or sourdough preferment. Advanced bakers dial hydration up to 72%. The scoring (3-5 diagonal slashes, slightly overlapping) is what creates the signature ear.

Hydration
68%
Salt
2.00%
Levain
15–20%
Bulk @ 76°F
3.00h
Proof @ 76°F
1.00h
Bake temp
475°F
Bake time
22m
Vessel
baking stone steam

Flour mix

Technique

Short autolyse (20 min). 3 sets of stretch-and-folds. 3h bulk, divide into 250g pieces, preshape cylinders, rest 20 min. Final shape: elongate to 18 inches with tapered ends, place in floured couche. Proof 60 min. Transfer to parchment, score 3-5 diagonal overlapping slashes with lame. Bake on preheated stone at 475°F with steam for first 10 min; 18-22 min total until deep mahogany crust.

Calculator pre-set to Baguette's target (68%)

Adjust the slider for personal preference within the workable 6572% range.

Flour to add
450 g
Water to add
290 g
Salt
10 g
Levain @ 100%
100 g
Total dough
850 g
Effective hydration
68%
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 →