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18 min readMarch 30, 2025Updated Feb 7, 2026

Sourdough Bread Baking: A Complete Beginner's Guide

Learn to bake artisan sourdough bread at home. This guide covers starter creation, fermentation, shaping, scoring, and troubleshooting for perfect crusty loaves.

Sourdough isn't just bread—it's a living collaboration between you, flour, water, and wild yeast. The tangy flavor, chewy crumb, and crackling crust of homemade sourdough can't be replicated by commercial bakeries. This guide will take you from creating your first starter to pulling beautiful loaves from your oven.

Key Takeaways

  • 1
    Creating a sourdough starter takes 7-14 days of daily feeding—patience is essential
  • 2
    A kitchen scale is non-negotiable; sourdough relies on precise ratios (baker's percentages)
  • 3
    Bulk fermentation is complete when dough doubles and feels airy and jiggly
  • 4
    Cold retard (overnight refrigeration) develops flavor and makes scoring easier
  • 5
    Bake in a preheated Dutch oven for steam that creates a crispy crust
  • 6
    Expect your first 5-10 loaves to be imperfect—each teaches you something valuable

1Why Bake Sourdough?

Sourdough has captivated bakers for thousands of years. Beyond the superior flavor, there are compelling reasons to start this craft.
  • **Better flavor** — The slow fermentation develops complex, tangy notes impossible with commercial yeast.
  • **Improved digestibility** — Fermentation breaks down phytic acid and gluten, making nutrients more available.
  • **Longer shelf life** — The acidity naturally preserves bread without additives—stays fresh 4-5 days.
  • **Simple ingredients** — Just flour, water, salt. No commercial yeast, dough conditioners, or preservatives.
  • **Creative expression** — Each loaf is unique. Scoring, shaping, and timing become your artistic signature.
  • **Meditative process** — The slow rhythm of feeding starter and waiting for dough is genuinely calming.
24-48 hours
Fermentation time
~30 minutes
Active work time
4-5 days
Shelf life
Just 4
Ingredients

The Learning Curve

Sourdough has a steeper learning curve than yeasted bread. Expect your first 5-10 loaves to be imperfect—that's normal. They'll still taste good. Each bake teaches you something. By loaf 20, you'll be turning out bakery-quality bread.

2Essential Equipment

You don't need much to start. Most essential items you probably already have. A few specialized tools make the process easier but aren't strictly necessary.
Sourdough equipment essentials
ItemPurposeAlternative
Kitchen scalePrecise measurement (essential)None—measuring cups are too imprecise
Large mixing bowlMixing and bulk fermentationAny food-safe container
Dutch ovenCreates steam for oven springBaking stone + steam pan
Bench scraperHandling and shaping doughPlastic spatula
Banneton/proofing basketShapes dough during final proofBowl lined with floured towel
Razor blade/lameScoring dough before bakingVery sharp knife
Instant-read thermometerChecking water/dough temperatureHand feel (with experience)

The One Non-Negotiable

A digital kitchen scale is essential. Sourdough is about ratios (baker's percentages), and volume measurements are too inconsistent. A basic scale costs $10-15 and transforms your baking precision.
  • **Proofing box** — Maintains consistent temperature. Helpful in cold climates. DIY: oven with light on.
  • **Stand mixer** — Makes kneading easier but not required. Hand mixing works fine.
  • **Bread knife** — Serrated knife for slicing without crushing the crumb.
  • **Cooling rack** — Lets air circulate under the loaf. Important for crust texture.
Start minimal. Make your first few loaves with what you have, then invest in tools as you identify what would help most. Many bakers find the banneton and lame are the first worthwhile upgrades.

3Creating Your Sourdough Starter

The starter is the heart of sourdough—a living culture of wild yeast and bacteria that leavens your bread. Creating one takes about 7-14 days but only minutes of daily work.

Creating a Starter from Scratch

1

Day 1: Initial mix

In a jar, mix 50g whole wheat or rye flour with 50g room-temperature water. Stir well, cover loosely, and leave at room temperature (70-75°F ideal).

2

Days 2-3: Watch and wait

You may see some bubbles or nothing at all. This is normal. If nothing happens by day 3, discard half and feed: 50g flour, 50g water.

3

Days 4-7: Daily feeding

Discard all but ~50g of starter. Add 50g flour and 50g water. Stir. Repeat daily. Bubbles should increase.

4

Days 7-14: Building strength

Continue daily feedings. Starter should double in 4-8 hours after feeding. When it reliably doubles, it's ready to bake with.

5

Float test

Drop a spoonful of starter in water. If it floats, it's active and ready. If it sinks, feed again and wait.

Starter feeding ratios
StageStarterFlourWaterNotes
Initial mix—50g50gWhole wheat or rye
Daily discard/feed50g50g50g1:1:1 ratio
Pre-bake feed20g100g100g1:5:5 for vigorous rise
  • **Whole wheat or rye** — Use for initial creation. More nutrients = faster fermentation.
  • **Bread flour (AP)** — Switch after starter is established for a milder flavor.
  • **Filtered water** — Chlorine can inhibit fermentation. Let tap water sit uncovered overnight if needed.
  • **Consistent ratios** — Always equal weights flour and water for 100% hydration starter.
A new starter may smell unpleasant (acetone, vomit-like) in the first few days. This is normal and will mellow. If you see pink, orange, or fuzzy mold, discard and start over—likely contamination from the jar.
Name your starter! Bakers traditionally do this—it's part of the craft. Keeping it alive becomes more meaningful when it has a name.

4Maintaining Your Starter

Once established, a starter can live indefinitely with proper care. Some bakeries use starters passed down for generations. Here's how to keep yours healthy.
Starter maintenance schedules
Baking FrequencyStorageFeeding Schedule
DailyRoom tempFeed every 12-24 hours
WeeklyRefrigeratorFeed once weekly, take out day before baking
MonthlyRefrigeratorFeed monthly; revive 2-3 days before baking
Long-termDried or frozenRevive over 5-7 days when needed

Refrigerator Storage

Cold slows fermentation dramatically. Feed your starter, let it rise for 1-2 hours at room temp, then refrigerate. A grey liquid (hooch) may form on top—just stir it back in or pour off. It's alcohol from hungry yeast, not a problem.

Reviving a Neglected Starter

1

Assess condition

Hooch (grey liquid) is normal. Strong acetone smell is okay. Mold (fuzzy, colored) means discard.

2

Discard most of it

Keep only 20-30g. The old starter has built up acids that inhibit yeast.

3

Feed generously

Add 100g flour and 100g water. This dilutes acids and provides fresh food.

4

Repeat 2-3 times

Feed every 12-24 hours. Activity should return by the 2nd or 3rd feeding.

5

Float test before baking

Make sure it passes the float test before using in a recipe.

Keep a backup! Spread some starter thin on parchment, let dry completely, then store flakes in a sealed jar. This dried starter can be revived with water and flour if your main culture is ever lost.

5Basic Sourdough Loaf Recipe

This is a straightforward recipe for a classic sourdough boule. Master this before attempting variations.
Ingredients for one loaf (~800g)
IngredientWeightBaker's %
Bread flour450g90%
Whole wheat flour50g10%
Water350g70%
Active starter100g20%
Salt10g2%
1
Evening Day 1

Feed starter

Feed starter so it's active and bubbly the next morning.

2
Morning Day 2

Mix dough (8-9am)

Combine flour, water, starter. Rest 30-60 min (autolyse). Add salt.

3
Day 2

Bulk fermentation (9am-3pm)

4-6 hours at room temp. Stretch and fold every 30-60 min for first 2 hours.

4
Afternoon Day 2

Shape (3pm)

Pre-shape, rest 20 min, final shape. Place in banneton seam-side up.

5
Day 2 → Day 3

Cold proof (overnight)

Cover and refrigerate 12-24 hours. This develops flavor.

6
Morning Day 3

Bake

Preheat Dutch oven to 500°F. Score dough, bake covered 20 min, uncovered 20-25 min.

Baker's Percentages

Sourdough recipes use baker's percentages where flour is always 100% and everything else is relative to flour weight. A 70% hydration dough has water equal to 70% of flour weight. This makes scaling recipes easy.
All times are approximate. Fermentation speed depends on temperature, starter strength, and flour. Learn to read your dough—it should roughly double and feel airy and jiggly, not just follow a clock.

Mixing & Bulk Fermentation

This is where gluten develops and fermentation happens. The dough transforms from shaggy to smooth and pillowy.

Mixing Process

1

Autolyse (optional but recommended)

Mix flour and water only. Let rest 30-60 min covered. This hydrates flour and starts gluten development passively.

2

Add starter

Incorporate active starter into the autolysed dough. Squeeze and fold until evenly distributed.

3

Rest 15-30 minutes

Let the mixture rest again before adding salt.

4

Add salt

Sprinkle salt over dough. Incorporate by squeezing and folding. Salt tightens gluten.

5

Begin bulk fermentation

Cover and leave at room temperature (75-78°F ideal). Set timer for first stretch and fold.

Stretch and Fold Technique

Wet your hand. Grab one side of the dough, stretch it up, and fold it over the center. Rotate the bowl 90° and repeat. Do all four sides. This builds gluten strength without kneading. Perform 4-6 sets during the first 2-3 hours of bulk fermentation.
  • **Stretch and fold** — Gentle, preserves air. Best for high-hydration doughs.
  • **Coil fold** — Lift center, let edges fold under. Even gentler.
  • **Slap and fold (French fold)** — Vigorous, develops gluten fast. Better for lower hydration.
  • **Lamination** — Stretch dough thin, fold like letter. Great for adding inclusions.
Signs bulk fermentation is complete
SignWhat It Means
Dough has doubledPrimary indicator—use container marks or dough gauge
Jiggly and airyVisible gas bubbles, dough wobbles when bowl is shaken
Smooth, domed topGluten structure is holding gas well
Passes poke testPoke with floured finger—springs back slowly
Temperature is the biggest variable. At 75°F, bulk takes 4-5 hours. At 70°F, 6-8 hours. At 80°F, 3-4 hours. Use a thermometer and keep notes to dial in your kitchen.

7Shaping Your Loaf

Shaping builds surface tension, which helps the loaf hold its shape and rise upward rather than spreading flat. Good shaping = good oven spring.

Shaping a Boule (Round Loaf)

1

Pre-shape

Gently turn dough onto unfloured surface. Using bench scraper, push and rotate to form a loose round. The bottom should grab the counter, creating tension.

2

Bench rest

Cover with towel and rest 15-30 minutes. This relaxes gluten for final shaping.

3

Flour the top

Dust top lightly with flour. Flip so floured side is down.

4

Fold and roll

Fold bottom third up, sides in, then roll toward you, sealing seam. Drag toward you to tighten.

5

Create tension

Cup hands around dough, drag toward you on unfloured surface. The friction creates surface tension.

6

Place in banneton

Set dough seam-side up in well-floured banneton. The seam will become the bottom when baked.

  • **Batard (oval)** — After pre-shape, fold into thirds like a letter, then roll into a log.
  • **Pan loaf** — Shape as batard, place seam-down in greased loaf pan.
  • **Baguettes** — Divide dough, shape as cylinders, roll to length. Requires baguette pan or couche.

The Importance of Tension

Surface tension is what makes a loaf rise up instead of spreading flat. If your loaf is flat, work on shaping technique. The taut outer "skin" holds gases in during oven spring.
Don't over-flour your work surface during shaping. The dough needs to grip the counter to build tension. Use flour sparingly—just enough to prevent sticking.

8Final Proof & Cold Retard

The final proof (second rise) continues fermentation after shaping. A cold retard in the refrigerator slows this process, developing flavor and making the dough easier to score.
Feature
Room Temperature Proof
Faster, same-day bake
Cold Retard (Refrigerator)
Slower, more flavorful
Duration1-2 hours at 75°F8-24+ hours at 38°F
Flavor profileMilder, less sourMore complex, tangier
ConvenienceBake same dayBake next morning, flexible timing
Scoring easeDough is softer, harder to scoreCold dough scores beautifully
Best forWhen you need bread quicklyBest results, schedule flexibility

The Poke Test

Flour your finger and poke the dough gently. If it springs back immediately, under-proofed. If it springs back slowly but not fully, perfectly proofed. If it doesn't spring back at all, over-proofed.
Most bakers prefer the cold retard method. After shaping, cover the banneton with plastic or a shower cap and refrigerate. Bake straight from the fridge the next morning—no need to warm up.
Over-proofed dough has exhausted its food supply. It will be flat, dense, and lack oven spring. If you suspect over-proofing, bake anyway—the bread is still edible, just less impressive.

9Scoring & Baking

Scoring controls where the loaf expands. Baking in a Dutch oven traps steam for a crispy crust. This is the most exciting part—watching the oven spring.

Baking Process

1

Preheat oven and Dutch oven

Place Dutch oven inside. Heat to 500°F (260°C) for at least 45 minutes. The pot must be screaming hot.

2

Prepare dough

Turn dough onto parchment paper. It should release from banneton with floured pattern showing.

3

Score the loaf

Using a lame or razor at 30-45° angle, make a swift, confident cut about 1/4" deep. Don't saw—one fluid motion.

4

Transfer to Dutch oven

Carefully lower dough (on parchment) into hot pot. Cover with lid.

5

Bake covered

20 minutes at 500°F. Steam trapped under lid creates crust. Resist peeking.

6

Bake uncovered

Remove lid, reduce to 450°F. Bake 20-25 more minutes until deep brown. Internal temp ~205°F.

7

Cool completely

Let rest on cooling rack at least 1 hour. Cutting too soon releases steam and gums up crumb.

  • **Single score** — One curved slash. Classic, allows dramatic ear.
  • **Cross** — Two slashes forming an X. Good for round loaves.
  • **Square** — Four cuts forming a square. Creates four "ears."
  • **Leaf/wheat pattern** — Decorative slashes. Requires practice.
  • **No score** — Loaf will burst unpredictably. Sometimes intentional for rustic look.

Creating an "Ear"

The dramatic flap of crust (ear) comes from scoring at a shallow angle (30°) rather than straight down. A sharp blade, confident motion, and properly proofed dough all contribute.
Don't fear dark color. A deep mahogany crust tastes better than pale bread. The Maillard reaction (browning) creates flavor. If the bottom burns, place a sheet pan on the rack below.

10Troubleshooting Common Problems

Every baker faces failures. They're learning opportunities. Here's how to diagnose and fix common issues.
Common sourdough problems and fixes
ProblemLikely CauseSolution
Flat loaf, no riseOver-proofed or weak starterShorter bulk/proof; ensure starter is active
Dense, gummy crumbUnder-fermented or cut too soonLonger bulk; wait 1-2 hours before cutting
Large holes at top, dense bottomShaping issues (air trapped)Degas gently; improve shaping tension
Pale crustNot baked long enough or oven too coolBake darker; check oven temperature
Burnt bottomDutch oven too hot on bottomPlace sheet pan on rack below
Loaf stuck to bannetonNot enough flour in bannetonRice flour works best; be generous
Sour taste too strongLong fermentation, warm tempsShorter proof; use more fresh starter
Not sour enoughShort fermentation, cool tempsLonger cold retard; use whole grains

Reading Your Crumb

The interior of the bread tells a story. Tight crumb = under-fermented or over-mixed. Large, irregular holes = good fermentation. Gummy/wet = under-baked or cut too soon. Dense bottom, open top = poor shaping.
Keep a baking log. Note flour, hydration, times, temperatures, and results. After 10-20 loaves, patterns emerge and you'll know exactly what adjustments your kitchen needs.

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Frequently Asked Questions

How long does it take to make sourdough bread?
Active work is about 30 minutes total, but the process spans 24-48 hours. Day 1: mix and bulk ferment (4-6 hours), shape, then refrigerate overnight. Day 2: bake straight from fridge. Most time is hands-off waiting.
Why is my sourdough starter not rising?
Common causes: too cold (move somewhere warmer, 75-80°F), not enough time (new starters take 7-14 days), or the flour lacks nutrients (try whole wheat or rye). Be patient and keep feeding daily—it will come alive.
Can I use all-purpose flour for sourdough?
Yes, but bread flour is better. Its higher protein (12-14%) creates more gluten, giving better structure and chew. All-purpose (10-12%) works but produces a softer crumb. For starter, whole wheat or rye is best initially.
Why is my sourdough bread so dense?
Usually under-fermentation—the dough didn't rise enough during bulk or proof. Solutions: use active starter (passes float test), allow longer bulk time, ensure warm enough temperature (75-78°F), and don't cut the bread until fully cooled.
How do I store sourdough bread?
Cut-side down on a cutting board for 1-2 days (crust protects crumb). For longer storage, wrap in cloth then plastic, or slice and freeze. Never refrigerate—it accelerates staling. Frozen slices toast directly from freezer.

Related Topics

#Lifestyle#Food#Baking#Cooking#Sourdough