Avoiding Beginner Sourdough Mistakes

Practical guide to the most common sourdough mistakes beginners make and how to fix or prevent them.

What to Expect

This guide focuses on the most frequent mistakes beginners make and gives clear, actionable corrections so your bakes improve quickly. It prioritizes reproducible technique over tricks.

What you'll learn:

  • ✓ Which mistakes actually cause problems (and which don’t)
  • ✓ How to diagnose a problematic loaf from simple observations
  • ✓ Small changes that deliver the largest improvements

💭 You will still make mistakes. The goal is to make fewer of the same ones and learn how to fix issues when they appear.

What You Need

Must have:

Active sourdough starter

Bubbly and at peak activity 4–8 h after feeding in a starter jar

⚠️ Create a starter first → more

Kitchen scale

Accurate to ±1 g

⚠️ Buy one — weight is the most reliable variable to control

Dutch oven or covered cloche

Oven-safe to at least 230°C / 450°F

Alternative: Preheated baking sheet with a water pan works but gives less consistent steam

Nice to have:

Why this approach helps beginners:

Focus on control, not complexity

Simpler methods reduce the number of variables you must master first [1].

Measurements by weight

Using a [kitchen scale](https://amzn.to/4pUMVHi) removes guesswork and allows consistent hydration and salt levels [1].

Cold retardation option

A long fridge proof gives timing flexibility and less risk of over-proofing at room temperature [2].

Ingredients

For: 1 loaf (about 800 g)

Bread flour 350g Stronger flour gives better structure for beginners
Medium rye flour 100g Adds flavor and helps fermentation predictability
Water 290g Use measured water; temperature affects timing [2]
Active sourdough starter 100g At peak activity after feeding
Salt 9g Weigh for accuracy

Step by Step

Simple mixing, short folds, fridge retard to reduce errors, bake in [Dutch oven](https://amzn.to/4sVhKhN).

1

Mix dough (10 min)

Evening

Weigh ingredients on your kitchen scale into a large mixing bowl. Mix until no dry flour remains.

✓ Uniform, slightly tacky dough
💡 Keep it simple — aim for even hydration rather than intensive kneading [1].
2

Autolyse (30 min)

After mixing

Cover and rest. Flour hydrates and gluten develops passively.

✓ Smoother surface and slightly more extensible dough [2]
3

Add salt and fold (5 min)

After autolyse

Mix in salt then perform 4 turns of stretch-and-fold every 15 minutes for an hour.

✓ Dough strengthens and holds shape better
→ Stretch and Fold technique
4

Bulk ferment in bowl or container

1–3 hours depending on temperature

Let the dough rise at room temperature until noticeably puffy; then refrigerate overnight to slow fermentation.

✓ Dough rises and becomes airy; fridge retards further rise
💡 Cold proof reduces risk of over-proofing and improves flavor control [1].
5

Shape and final proof

Next day

Turn onto floured surface with a dough scraper. Shape into a boule or place in greased loaf pan. Place seam-up into a proofing basket if available.

✓ Taut surface and a gentle spring-back when pressed lightly
💡 For a beginner, a loaf pan reduces shaping errors.
6

Preheat oven and bake

Preheat oven with Dutch oven inside to 250°C/480°F for at least 30 minutes. Transfer dough on parchment paper into the pot, score, cover and bake 30 min. Remove lid and bake another 20–25 min at 220°C/425°F.

✓ Deeply browned crust and hollow sound when tapped on bottom [2]
💡 Scoring directs oven spring; a single confident cut is better than multiple shallow slashes [1].
7

Cool properly

Cool on a rack for at least 1 hour (ideally 2).

⚠️ Slicing too early yields a gummy crumb — the internal gelatinization finishes while cooling [2]

What If It Doesn't Work?

Diagnose and fix common beginner problems quickly with these focused checks.

Starter not producing oven spring

Likely: Starter not at peak activity or underfed before use

Fix: Feed and let it peak; use float test and observe bubbles. If uncertain, use fresher starter and allow longer bulk fermentation [1].

→ More info

Dense or tight crumb

Likely: Underdeveloped gluten or under-proofed

Fix: Increase stretch-and-folds during bulk fermentation and allow dough to show visible puffiness before retard. Use warmer bulk temps or slightly longer times if dough is sluggish [2].

→ More info

Gummy or wet center

Likely: Insufficient bake time or sliced too soon

Fix: Bake until internal temp ~96°C/205°F or add 5–10 min and cool 1–2 hours before slicing [2].

→ More info

Too sour

Likely: Over-fermentation (too long or too warm)

Fix: Shorten bulk or final proof and retard in fridge earlier; use slightly less starter if you want milder tang [1].

→ More info

Poor crust or no oven spring

Likely: Insufficient steam or dull scoring

Fix: Use a [Dutch oven](https://amzn.to/4sVhKhN) for sealed steam, score confidently to allow expansion [1].

💪 Most issues are fixable with small, targeted changes — focus on one variable at a time and track results.

What now?

You want to bake more consistent loaves
→ Keep a baking log and standardize starter feeding and timings
You want to shape better
→ Practice shaping and use a [dough scraper](https://amzn.to/3LR1f5E) to learn tension techniques
You want to understand fermentation
→ Read about the microbiology and temperature effects to control flavor
You want a recipe for a first loaf
→ Follow an easy, forgiving first-sourdough recipe

Sources

  1. [1]
    The Perfect Loaf – The Perfect Loaf – Link
  2. [2]
    Plötzblog – Plötzblog – Link