Germany/Switzerland · hearth

Spelt Hearth Loaf

Target 70% hydration · dutch oven · bake at 450°F

Spelt hearth loaf with 20% bread flour for structural support. 100% spelt is possible but fragile; 80/20 blend gives the nutty spelt flavor with reliable oven spring. Lower hydration (70%) than bread-flour-based doughs because spelt absorbs less water. Shorter fermentation to prevent gluten over-degradation.

Hydration
70%
Salt
2.00%
Levain
15–20%
Bulk @ 76°F
3.00h
Proof @ 76°F
6.00h
Bake temp
450°F
Bake time
38m
Vessel
dutch oven

Flour mix

Technique

Short autolyse (20 min). 2-3 GENTLE stretch-and-folds (spelt gluten tears easily). 3h bulk. Shape carefully, floured banneton, 6h cold retard. Bake in dutch oven 450°F: 20 min lid on, 18 min off.

Calculator pre-set to Spelt Hearth Loaf's target (70%)

Adjust the slider for personal preference within the workable 6575% range.

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 →