Ancient Sourdough Fermentation Bread Artisanship
A challenging, hands-on discovery and STEM project designed for curious young minds aged 10 to 14.
Materials Needed
- • Active bubbly sourdough starter (1/2 cup)
- • Unbleached bread flour (500 grams)
- • Fine sea salt (10 grams)
- • Dutch oven or heavy baking stone (1 unit)
- • Razor blade or sharp paring knife (1 unit)
Pro Tips
- → Mix flour, water, and mature sourdough starter; let it rest for 30 minutes for autolyse before adding salt.
- → Use the "stretch-and-fold" technique every 30 minutes instead of traditional kneading to build strong, airy gluten networks.
- → Bake inside a pre-heated, covered Dutch oven: trapped steam keeps the dough surface moist, allowing the loaf to expand with a crisp crust.
Safety First
Adult assists with placing and removing hot Dutch ovens from the 230°C (450°F) oven.
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Step-by-Step Instructions
Step 1
Whisk 100g active sourdough starter with 350g warm water in a bowl, then stir in 500g bread flour until a shaggy dough forms.
Step 2
Rest 30 minutes, sprinkle 10g salt on top, and perform 4 sets of stretch-and-folds every 30 minutes to develop gluten strength.
Step 3
Shape the fermented dough into a tight round ball (boule) with surface tension, placing it into a floured bowl to proof.
Step 4
Score the top with a blade and bake inside a pre-heated 230°C (450°F) Dutch oven with the lid on for 20 minutes, then lid off for 15 minutes until golden brown.