To bake sourdough bread, build an active starter, ferment the dough, shape, then bake hot with steam until the loaf reaches about 200°F.
New to wild-yeast loaves and wondering, how do you bake sourdough bread? This guide walks you through a clean, repeatable process that works in a home oven. You’ll see the big picture first, then detailed steps, pro tips, times, dough temperatures, and the cues that matter more than the clock.
How Do You Bake Sourdough Bread? Step Outline
Here’s the flow you’ll follow today. Keep water, flour, and salt simple for your first bakes. A kitchen scale and a covered baking vessel (Dutch oven or cloche) make the process easier and more consistent.
| Stage | Typical Time | What To Look For |
|---|---|---|
| Feed Starter | 8–12 hrs at ~75°F/24°C | Doubling in size, domed top, bubbly surface, mild tangy aroma |
| Mix & Autolyse | 20–40 mins | Flour fully hydrated, dough soft and extensible |
| Add Salt & Starter | 5 mins | Dough tightens slightly; gluten begins aligning |
| Bulk Fermentation | 3–6 hrs | Volume up 50–75%, smoother surface, small bubbles at edges |
| Strength Work | Every 30–45 mins (first 2–3 hrs) | Coil or stretch-and-fold until dough stands taller between sets |
| Pre-Shape | 5 mins + 20–30 mins rest | Loose round that relaxes but keeps some height |
| Final Shape | 5–10 mins | Taut skin without tearing; smooth, sealed seam |
| Proof | 1–2 hrs at room temp or 8–18 hrs cold | Loaf springs back slowly when poked; slight jiggle |
| Bake | 35–50 mins at high heat | Deep golden crust, bold ear, ~200°F internal temp |
Ingredients, Ratios, And One Reliable Formula
Start with a lean dough: flour, water, salt, and ripe starter. A friendly formula for a first loaf is 75% hydration. That gives you a dough that’s manageable yet open-crumb friendly.
- Strong white bread flour: 500 g
- Water (room temp): 375 g
- Fine sea salt: 10 g
- Ripe sourdough starter (100% hydration): 100 g
This formula yields one medium batard or boule. Adjust water a little if your flour is thirstier or your kitchen is dry.
Set Your Starter Up For Success
Feed your starter until it doubles, smells pleasantly tangy, and a spoonful floats in room-temperature water. If it rises and collapses before you mix, feed earlier next time or mix sooner after peak. The starter guide from The Perfect Loaf is a solid reference for upkeep and signs of ripeness.
Mix, Rest, And Build Strength
Autolyse
Whisk the starter into the water until milky. Add flour and mix until no dry patches remain. Rest 20–40 minutes. This simple pause boosts extensibility so the dough stretches without tearing later.
Add Salt And Fold
Sprinkle in salt and pinch it through. Perform a few sets of gentle folds every 30–45 minutes during the first half of bulk fermentation. Each set should leave the dough a touch taller with better posture.
Bulk Fermentation: Time Meets Temperature
Fermentation speed depends on dough temperature. Warmer dough moves faster; cooler dough slows. Many home bakers aim for a dough around the mid-70s °F during bulk. King Arthur’s references on desired dough temperature explain why tracking dough warmth brings consistency to rise and flavor. See dough temperature guidance.
End bulk when volume has risen by about half to three-quarters, the surface looks smoother, and bubbles show along the sides. If the dough spreads a lot and feels slack, it needs more strength work or the room is too warm.
Pre-Shape, Bench Rest, And Final Shape
Turn the dough onto a lightly floured surface. Pre-shape into a loose round to organize gluten. Rest 20–30 minutes. For a boule, tighten the surface with quick, small tucks under the dough. For a batard, roll into a tight log with sealed seams. The goal is a gently stretched skin without tearing.
Proofing: Room-Temp Or Cold
Place the shaped dough seam-up in a floured banneton or a towel-lined bowl. Proof at room temp for 1–2 hours, or cover and chill overnight for a slower rise, easier scoring, and a deeper flavor. The poke test should leave a slight dent that fills in slowly.
How To Bake Sourdough Bread At Home: A Practical Plan
Home ovens lose heat when opened, so preheat to 500°F/260°C for at least 30–45 minutes with your Dutch oven inside. Steam helps the loaf expand before the crust sets. A lidded pot traps steam from the dough itself. If you’re baking on a stone or steel, pre-steam with boiling water in a preheated pan or use ice cubes in a preheated cast-iron skillet. Steam allows better oven spring and a shinier crust by keeping the surface flexible during the first several minutes of baking. For context on steam’s role, see this King Arthur guidance on doneness and baking cues.
Score And Load
Invert the dough onto parchment. Score a confident primary slash about ¼-inch deep at a shallow angle to encourage an ear. Load into the hot pot, cover, and return to the oven quickly to preserve heat.
Bake Hot, Then Vent
Bake 20–25 minutes covered at 475°F/246°C. Uncover, lower to 450°F/232°C, and bake 15–25 minutes more until the crust is deep golden. Many bakers target about 190–205°F internal for lean loaves. King Arthur’s recipes and articles describe using an instant-read thermometer as a reliable check. See their note on thermometer use in bread.
Cool Fully
Place the loaf on a rack and let it cool at least an hour. The crumb sets as steam redistributes; slicing too soon compresses it.
Flavor And Crumb: What Changes The Outcome
Hydration
More water opens the crumb and extends the bake time. Less water tightens the crumb and speeds the bake. Start at 70–75% and nudge from there as your handling improves.
Flour Choice
Bread flour gives structure and spring. A touch of whole grain boosts flavor and fermentation speed. Try 10–20% whole wheat or rye once your base loaf feels routine.
Fermentation Length
Longer, cooler fermentation yields deeper tang and a thinner, crisper crust. Warmer, shorter fermentation leans mild with a softer shell.
Safety Notes That Home Bakers Sometimes Miss
Flour is a raw ingredient. Don’t taste raw dough. Wash bowls, hands, and surfaces after mixing. The CDC advisory on raw flour and dough summarizes safe handling and why baking is required.
How Do You Bake Sourdough Bread? Troubleshooting Guide
Stuff happens. Use the patterns below to diagnose the loaf in front of you and adjust your next mix, ferment, or bake.
| Issue | Likely Cause | Next Step |
|---|---|---|
| Flat Loaf, Little Spring | Under-strength dough or over-proofed | Add one more fold early; shorten proof; bake sooner |
| Dense, Gummy Center | Underbaked or too-wet dough | Extend the bake; check ~200°F internal; lower hydration a bit |
| Blowouts On The Side | Weak scoring or seam on top | Score deeper at a shallow angle; ensure seam is well sealed |
| Pale Crust | Low heat or early venting | Preheat longer; keep the lid on a few minutes more |
| Thick, Tough Crust | Low steam or long uncovered bake | Trap steam with a lid; shorten final dry-out |
| Tight, Even Crumb | Short bulk or stiff dough | Extend bulk to the proper rise; raise hydration 2–3% |
| Overly Sour | Warm, long ferments or very mature starter | Shorten bulk; proof cooler; feed starter more often |
| Weak Flavor | Fast, warm ferments or young starter | Lengthen cold proof; use starter near peak ripeness |
Step-By-Step Walkthrough With Times
1) Feed Starter
Feed the night before you plan to bake, using a ratio that lets it peak when you want to mix. In a warm kitchen, smaller feeds peak faster; in a cool kitchen, larger feeds hold longer.
2) Mix Dough
In a bowl, combine 100 g ripe starter with 375 g water. Stir until cloudy. Add 500 g flour, mix to a rough mass, and rest 30 minutes. Sprinkle in 10 g salt, squeeze through, then fold to a smooth ball.
3) Bulk Fermentation
Keep the dough near the mid-70s °F. Give two to three sets of folds during the first two hours. Total bulk runs 3–6 hours, depending on dough temperature and starter strength. End when you see the rise and bubbles described earlier.
4) Pre-Shape And Final Shape
Pre-shape, rest, and create a taut skin during final shaping. Use just enough bench flour to prevent sticking without drying the surface.
5) Proof
Room-temp proof for 1–2 hours, or refrigerate 8–18 hours for convenience and flavor.
6) Bake
Preheat your Dutch oven to 500°F. Score, load, and bake covered 20–25 minutes at 475°F, then uncover and bake until the crust is a deep golden brown and the center reads about 190–205°F. King Arthur’s articles and recipes outline doneness checks and thermometer guidelines that align with these ranges. See their notes on doneness cues.
Small Upgrades That Pay Off
Steam Management
A closed pot traps steam for you. If you’re baking on a stone or steel, add a preheated pan and pour in boiling water as you load, or drop a few ice cubes in a hot skillet on a lower rack. Quick steam at the start keeps the crust flexible for better expansion.
Scoring Confidence
Use a sharp lame or razor and commit to a clean slash. A shallow angle creates that lifted ear and a more dramatic bloom.
Simple Flavor Tweaks
Mix in 10–20% whole wheat or rye for a nuttier loaf. Try a cold proof at the long end of the range to deepen aroma without raising sourness too far.
Storage, Slicing, And Serving
Let the loaf cool completely before slicing. Store cut-side down on a board for the first day to keep the crust crisp. For longer storage, use a bread box or a paper bag. Freeze slices in a zip bag and reheat straight from frozen in a toaster or hot oven.
FAQ-Free Action Plan
Here’s your checklist to run today without hopping to other tabs:
- Feed starter to peak when you plan to mix
- Mix 500 g flour, 375 g water, 100 g starter, 10 g salt
- Rest 30 minutes, then fold
- Bulk until 50–75% rise with visible bubbles
- Pre-shape, rest, final shape
- Proof at room temp or chill overnight
- Bake covered, then uncovered to deep golden and ~200°F inside
Why This Method Works
The steps above align with respected baking resources that stress fermentation control, dough temperature, and steam for early oven spring. You’ll find the same fundamentals echoed in beginner sourdough guides and King Arthur’s baking notes on dough temperature and doneness checks.
If anyone asks again, “how do you bake sourdough bread?”, you now have a clear, repeatable answer: feed, mix, ferment, shape, proof, bake hot with steam, and confirm doneness by color and internal temperature.
