8-Hour Sourdough Sandwich Bread Recipe: Crusty Exterior, Pillowy Soft Interiors

An 8-hour sourdough sandwich bread recipe delivers the perfect balance of a crusty exterior and pillowy soft interiors—ideal for toast, sandwiches, or charcuterie boards. This method builds flavor through slow fermentation while keeping the process manageable for home bakers.

The key lies in precise timing, hydration control, and shaping techniques tailored for sandwich bread. Start with an active sourdough starter (or revive one if needed) and mix dough with 65% hydration for a light yet sturdy crumb.

After an autolyse rest, perform stretch-and-folds during bulk fermentation to strengthen gluten without overworking the dough. Let it proof at room temperature for 4-5 hours, then shape into loaves, rolls, or pull-apart styles for easy slicing.

Baking at 425°F with steam creates that signature crust, while a baking stone ensures even heat distribution. Cool completely on a wire rack to prevent gumminess, then slice for clean, soft layers that hold fillings perfectly. This recipe transforms simple ingredients into bread with restaurant-quality texture—no bakery skills required.

Troubleshooting common issues like dense crumb or underproofed dough is straightforward with this method. The autolyse step prevents over-kneading, while stretch-and-folds develop gluten gradually. For added flavor, consider seeds, herbs, or garlic in the dough, but keep hydration consistent to maintain texture.

Leftovers stay fresh for 3-4 days when wrapped tightly.

Perfect for weeknight meals, picnic sandwiches, or gifting, this bread adapts to any occasion. The 8-hour timeline allows flexibility—start in the morning and bake by evening. Whether you’re a beginner or seasoned baker, this recipe delivers foolproof results with minimal effort. Let’s get started!

Ingredients for 8 hour sourdough sandwich bread

Six core ingredients crafting restaurant-quality sandwich bread with perfect crust and soft crumb.

The sourdough starter is non-negotiable—King Arthur or similar reliable brands ensure consistent fermentation. Look for a starter that doubles in 4-6 hours when fed. For the flours, King Arthur Bread Flour gives superior gluten development, but Bob’s Red Mill works well too. The water temperature matters: too hot kills yeast, too cold slows fermentation. Use a thermometer if unsure. Salt quality affects flavor significantly—Diamond Crystal dissolves completely, unlike table salt.

No sourdough starter? Revive one using 1:1:1 ratio of flour, water, and starter over 5-7 days. Short on bread flour? All-purpose plus 1 tsp vital wheat gluten mimics its structure. Olive oil can be swapped for neutral oil like avocado, but extra-virgin adds subtle richness. For gluten-free adaptation, replace all flours with a 1:1 gluten-free bread flour blend—expect slightly denser results. The cornmeal is optional but prevents sticking during proofing. If you skip it, use semolina instead.

Store the starter in a glass jar with loose lid in the fridge—lasts indefinitely. Dough can be refrigerated 12-24 hours before baking for deeper flavor. Once baked, bread stays fresh 3-4 days wrapped in a cotton towel, or 1 week frozen in slices. For gifting, wrap individual loaves in beeswax paper and tie with twine. The 8-hour timeline includes 1-hour autolyse, 2-hour bulk fermentation with stretch-and-folds, 4-hour proof, and 1-hour bake—plan accordingly.

Step-by-step instructions for artisan sourdough sandwich bread

Perfecting this loaf takes patience, but the result—crispy crust and tender crumb—makes every minute worthwhile.

In a large mixing bowl, combine the 0.5 cup active sourdough starter, 3.5 cups all-purpose flour, 0.5 cup bread flour, 1.75 cups lukewarm water (75-80°F), and 0.5 tsp salt. I use a silicone spatula to gently fold the dry ingredients into the wet until a shaggy mass forms—this prevents overmixing and preserves gluten structure.

Once the flour is mostly incorporated, add 1 tbsp extra-virgin olive oil and continue mixing until the dough comes together. It should be slightly sticky but cohesive enough to hold its shape when pressed. If it feels too dry, add 1 tsp water at a time until it reaches the perfect consistency—think of wet sand that clings together when squeezed.

Turn the dough onto a lightly floured surface and perform a series of stretch-and-folds every 30 minutes for 2 hours. This technique strengthens the gluten network, which is critical for that signature sandwich bread texture. Wet your hands slightly to prevent sticking, then grab one side of the dough, stretch it upward, and fold it over itself. Rotate the bowl and repeat, working your way around the dough.

After the final stretch-and-fold, cover the bowl with a damp kitchen towel and let it ferment at room temperature (70-75°F) for 6 hours. You’ll know it’s ready when the dough has nearly doubled in size and exhibits bubbly, jiggly activity when gently pressed. If your kitchen is cooler, extend fermentation to 8 hours—the dough will develop more complex flavors.

Lightly dust a clean surface with 0.25 cup cornmeal and turn out the dough. Gently deflate it by pressing down with your fingertips, then divide it into 4 equal portions (about 8 oz each). Roll each portion into a tight log, sealing the seam by pinching the ends. Place the logs seam-side down on the cornmeal-dusted surface, cover with the towel, and refrigerate for 12-16 hours.

Cold proofing slows fermentation, allowing gluten to relax and flavors to meld. The dough should rise slightly but remain firm to the touch. This step is non-negotiable—skipping it results in a dense, gummy loaf. I like to set a timer so I don’t over-proof, as the dough can become overly active and collapse during baking.

Preheat your oven to 425°F with a Dutch oven inside for 45 minutes. This step ensures the bread bakes evenly and develops a deep, crackly crust. Remove the Dutch oven, then transfer the cold dough logs onto a parchment-lined baking sheet. Brush the tops lightly with ice water—this creates steam during baking, which contributes to that signature oven spring.

Carefully place the logs into the hot Dutch oven, cover, and bake for 25 minutes. After this initial steam phase, uncover and bake for an additional 15-20 minutes until the crust is deep golden brown and the internal temperature reaches 190-195°F. Tap the loaf—it should sound hollow. If the crust browns too quickly, tent with foil to prevent over-browning.

Remove the bread from the oven and let it cool on a wire rack for at least 1 hour before slicing. This resting period allows the gluten to fully relax, preventing a gummy texture. I resist the urge to cut into it immediately—patience here ensures clean slices and even distribution of moisture.

Once cooled, slice the bread into ½-inch thick pieces using a serrated knife. The interior should be soft, open-crumbed, and slightly chewy, while the exterior remains crisp and shatterable. Store any leftovers in an airtight container at room temperature for up to 3 days, or freeze for longer storage. The flavor only improves over time, making this bread perfect for sandwiches or toast.

Essential equipment for 8 hour sourdough sandwich bread

Dutch Oven Essentials

A Dutch oven is non-negotiable for this recipe—it traps steam, creating that signature oven spring and deep crust. I recommend a 5-6 quart enameled cast iron like Le Creuset or Lodge for even heat distribution.

The heavy material retains heat perfectly, while the enameled interior prevents sticking. If you don’t own one, a heavy oven-safe pot with a tight lid works in a pinch, but avoid thin aluminum. 🔥

Baking Stone or Steel

Place a baking stone or steel on the lower oven rack before preheating to mimic a professional bakery setup. I use a 12×16-inch stone from Great Mills—it radiates heat upward, ensuring even browning and crispy crusts.

For budget-friendly options, a perforated steel pan works just as well. Avoid glass or ceramic stones, which can crack under sudden temperature changes.

Digital Thermometer

A digital instant-read thermometer like the Thermoworks Thermapen is my secret weapon for perfect doneness. Insert it into the center of the loaf—it should read 190-195°F when done.

This prevents overbaking while ensuring the interior is fully cooked. For bulk fermentation, I also use a laser thermometer to monitor room temperature (ideal range: 70-75°F).

Dough Scraper and Bench Brush

Keep a dough scraper (I love the OXO Good Grips version) and a bench brush handy for shaping and dusting. The scraper helps divide dough cleanly, while the brush applies cornmeal or flour evenly, preventing sticking.

A lightweight silicone brush works well for dusting, but avoid stiff bristles that can tear delicate dough.

Proofing Tools

For proofing, I use a clear glass bowl (like Pyrex) with a damp kitchen towel draped over it to maintain humidity. If your kitchen is dry, add a shallow tray of hot water nearby to create a mini humidity chamber.

For cold proofing, a refrigerator-safe proofing box (like Proof Box by Proof Equipment) keeps temperatures consistent, but a standard fridge with a thermometer works too.

Cooling Rack and Airtight Storage

Let bread cool on a wire cooling rack (I prefer Amazon Basics for affordability) to prevent soggy bottoms. For storage, use an airtight container like OXO Good Grips or Rubbermaid to maintain freshness.

Wrap leftovers in a cotton towel instead of plastic—it regulates moisture better and keeps the crust crisp. For gifting, beeswax wrap adds a rustic touch while preserving freshness. ✨

Frequently asked questions