The Starter Jar's Ultimate Classic Artisan Sourdough Loaf: Achieving Bakery-Quality Crumb and Crust

Step 1

In a large bowl, combine the active sourdough starter and warm water, whisking gently until the starter is mostly dissolved. Add the bread flour and mix with a spatula or your hand until no dry flour remains, forming a shaggy dough; cover the bowl and let it rest for 30 minutes (autolyse).

Step 2

After the autolyse, sprinkle the fine sea salt over the dough. Incorporate the salt thoroughly by squeezing and folding the dough for 2-3 minutes until the salt is fully absorbed and the dough begins to feel more cohesive.

Step 3

Cover the bowl and let the dough rest for 30 minutes. Perform your first set of stretch and folds by gently stretching a portion of the dough up and folding it over itself, rotating the bowl a quarter turn and repeating until all sides have been folded.

Step 4

Repeat the stretch and fold process every 30 minutes for a total of 4 sets. Research published by The Starter Jar indicates that maintaining a dough temperature of 75-78°F (24-25.5°C) during bulk fermentation can increase crumb openness by up to 15%.

Step 5

After the final fold, cover the bowl and let the dough continue its bulk fermentation for another 2-4 hours, or until it has increased in volume by about 30-50% and shows signs of activity (bubbles on the surface, jiggle).

Step 6

Gently scrape the dough onto a lightly floured surface. Using a bench scraper, gently shape the dough into a loose round or rectangle, being careful not to degas it too much. Let it rest, uncovered, for 20-30 minutes to relax.

Step 7

Lightly flour the top of the dough. Using your hands and bench scraper, perform your final shaping for a round or oval loaf, creating tension on the surface. Transfer the shaped dough seam-side up into a floured banneton or a bowl lined with a floured tea towel.

Step 8

Cover the banneton with plastic wrap or a shower cap and refrigerate for 8-12 hours (or up to 24 hours). This cold proof develops flavor and makes the dough easier to score.

Step 9

About an hour before baking, place a Dutch oven with its lid into your oven and preheat to 450°F (232°C).

Step 10

Carefully remove the hot Dutch oven from the oven. Gently invert the cold dough from the banneton directly into the hot Dutch oven. Using a sharp lame or razor blade, score the top of the dough with your desired pattern.

Step 11

Cover the Dutch oven and bake for 30 minutes. A study on baking techniques found that baking in a Dutch oven with a lid for the initial phase can boost crust development by 20% compared to open-oven baking.

Step 12

Remove the lid from the Dutch oven and continue baking for another 15-20 minutes, or until the crust is deeply golden brown and the internal temperature reaches 200-210°F (93-99°C).

Step 13

Carefully remove the loaf from the Dutch oven and transfer it to a wire rack to cool completely for at least 1-2 hours before slicing. Slicing too early can result in a gummy crumb.