75 Percent Hydration Sourdough Bread Recipe: Crusty Exterior, Cloud-Light Crumb Without Gluten Flour

A 75% hydration sourdough bread recipe transforms your kitchen into a bakery with its signature crusty shell and airy, cloud-like crumb—no gluten flour required. This recipe unlocks professional results by balancing moisture, fermentation, and oven spring for a loaf that rivals artisanal bakeries.

The higher hydration creates a lighter texture while maintaining structure, a technique that separates home bakers from the pros.

What makes this recipe stand out is the 75% hydration ratio, where 75 parts water meet 100 parts flour by weight—enough moisture for an open crumb but controlled enough to avoid a gummy mess.

We’ll focus on precise temperature control during bulk fermentation (74–76°F) and shaping to maximize oven spring, giving you that coveted 10-inch rise with an ear that cracks open like a perfect golden dome.

The result is a loaf with a shatteringly crisp crust that gives way to a tender, open crumb studded with even holes—no dense, chewy texture here. This method also works beautifully with whole grains or seeds, though the core recipe keeps it simple for first-timers.

Every step is designed to build confidence, from mixing to scoring, so you’ll achieve bakery-quality bread without shortcuts.

Whether you're a seasoned sourdough baker or trying your first loaf, this recipe delivers consistent, foolproof results. The key lies in patience—letting the dough develop naturally over 18–24 hours of fermentation creates the complex flavors and texture that define great sourdough. Ready to bake with confidence? Let’s get started.

Ingredients for 75 hydration sourdough bread

Precision-milled flour, fermented starter, and controlled hydration unlock bakery-style sourdough at home.

The bread flour is non-negotiable here—its high protein content (12-14%) provides the gluten structure needed for that signature 10-inch rise and open crumb. King Arthur or Caputo are industry standards for this recipe, though Bob's Red Mill works in a pinch. The sourdough starter must be active with visible bubbles; if it's sluggish, feed it 1:1:1 (starter:flour:water) 2-3 hours before mixing. Room temperature water is critical—75°F ensures proper gluten development without overproofing. For the sea salt, Diamond Crystal dissolves more cleanly than Morton's, which can leave grainy residue in your dough. Store your starter in a glass jar in the fridge between uses; it'll last indefinitely if fed weekly.

No bread flour? King Arthur all-purpose in a bind, though results will be slightly less open. The instant yeast is optional but recommended for first-timers—it ensures consistent rise times. Substitute 1 tsp active dry yeast if needed, but let it proof in warm water for 5 minutes first. For the olive oil, any extra-virgin variety works, but avoid heavily perfumed oils that may interfere with flavor development. The cornmeal acts as a barrier between dough and parchment; semolina works too if you prefer a nuttier finish. Need to adjust hydration? Reduce water by 0.5 oz per 2 oz flour for drier climates, or increase by the same amount for humid conditions. The ice water trick prevents overproofing during shaping—essential for that professional oven spring.

Freshly mixed dough should rest covered in the fridge for 12-18 hours before final proof. The lame (or sharp razor) must be sanitized before scoring—use 70% isopropyl alcohol to prevent contamination. Store leftover starter in an airtight container in the fridge; it'll keep for weeks if fed weekly. For the flour, keep it sealed in a cool, dark pantry—it loses potency after 3 months. The olive oil should be stored in a dark glass bottle away from light to prevent rancidity. Once baked, cool loaves on a wire rack for 2+ hours before slicing—this preserves that shatteringly crisp crust you worked so hard to achieve.

Step-by-step instructions for 75 percent hydration sourdough bread

This method delivers a perfectly balanced loaf with a crisp crust and open, airy crumb—no gluten flour required.

In a large mixing bowl, combine the 0.5 cup active sourdough starter, 10 oz bread flour, 0.1 tsp instant yeast, and 0.5 tsp sea salt. Mix just until the flour is evenly distributed and small crumbs form—this prevents overdevelopment of gluten at this stage. Add the 7.5 oz room-temperature water and 0.25 tsp olive oil gradually while mixing with a wooden spoon or dough whisk.

After combining all ingredients, switch to a dough scraper and fold the dough over itself 8-10 times to strengthen the gluten structure without overworking it. The dough should be shaggy but cohesive, with no dry pockets. If it feels too sticky, add 1 tablespoon of the 10 oz bread flour at a time until it reaches a soft yet manageable consistency. Let the dough rest for 10 minutes at room temperature—this initial rest period allows the flour to fully hydrate and the gluten to relax slightly.

After the initial rest, perform a series of stretch and folds every 30 minutes for 2 hours. Wet your hands with water to prevent sticking, then grab one side of the dough, stretch it upward, and fold it over itself. Rotate the bowl and repeat this motion in four directions, working quickly to avoid over-handling. This technique develops gluten evenly while maintaining the open crumb structure characteristic of 75% hydration dough.

During bulk fermentation, the dough should rise 50-75% of its original volume. You'll notice it becomes bubbly and slightly domed, with large, irregular bubbles forming on the surface. The ideal temperature for bulk fermentation is 75-78°F—if your kitchen is cooler, extend the fermentation time by 30-60 minutes. Once the dough passes the poke test (when you gently press the center with a wet finger and it springs back slowly), it's ready for shaping.

Lightly dust a clean work surface with 0.25 cup cornmeal and turn out the dough. Gently shape it into a loose round by pulling the edges toward the center while rotating the dough. This pre-shape helps build tension for the final shaping. Let the dough rest for 20-30 minutes while you prepare your baking equipment. During this rest, the dough will relax slightly, making it easier to handle during the final shaping.

After the rest, perform the final shape by tucking the dough into a tight boule or batard. For a boule, use your hands to create surface tension by pulling the dough toward the center from all sides. For a batard, roll the dough into a log shape while applying even pressure. Place the shaped dough, seam-side up, into a well-floured banneton or a bowl lined with a floured kitchen towel. Cover with plastic wrap and refrigerate for 12-16 hours or until the dough has risen 50-75% of its original volume. The cold proofing enhances flavor development and makes scoring easier.

Preheat your oven to 450°F with a Dutch oven inside for at least 45 minutes. Remove the cold dough from the refrigerator and turn it out onto a piece of parchment paper. Using a lame or razor blade, score the dough ¼-inch deep in a decorative pattern—this prevents the dough from bursting open during baking and creates an appealing crust. Transfer the scored dough, along with the parchment, into the preheated Dutch oven.

Bake the dough, covered, for 20 minutes, then remove the lid and continue baking for an additional 20-25 minutes until the internal temperature reaches 205-210°F and the crust is deep golden brown. The bread is done when it sounds hollow when tapped on the bottom. If the crust isn't brown enough after 20 minutes, tent the Dutch oven with aluminum foil to prevent over-browning while allowing the bread to finish baking.

Remove the bread from the Dutch oven and transfer it to a wire rack to cool completely. Resist the temptation to slice it immediately—cooling for at least 1 hour allows the crumb to set properly and prevents a gummy texture. The internal temperature should drop to room temperature before slicing. Once cooled, slice the bread with a serrated knife and serve. The exterior should be crisp and shatterable, while the interior reveals an open, cloud-like crumb with large, irregular holes—characteristic of a properly fermented 75% hydration sourdough.

Flavor customization for this dish

Sweet Variations

Transform your sourdough into a honey-walnut loaf by adding 2 tablespoons honey to the dough during mixing and topping with ¼ cup chopped walnuts before baking. The natural sweetness caramelizes beautifully in the oven, creating a golden crust with subtle nutty undertones.

For a cinnamon-raisin twist, fold in 1 tablespoon ground cinnamon and ¼ cup raisins during the final shaping—these warm spices amplify the bread's flavor while adding chewy texture. 🍯

Herb & Seed Boosts

Elevate your sourdough with fresh herbs like 1 tablespoon chopped rosemary or thyme mixed into the dough for a fragrant, earthy aroma. For a nutty crunch, sprinkle 2 tablespoons sesame seeds or poppy seeds on top before baking.