Common Sourdough Mistakes — Beginner's Troubleshooting Guide

What to Expect

This guide helps you recognise the usual beginner errors in sourdough baking, explains why they happen, and gives clear, actionable fixes so your next loaf improves.

What you'll learn:

✓ How to diagnose common faults quickly
✓ Simple, repeatable fixes for texture, shape and flavour
✓ Why starter activity, timing and temperature matter

💭 You won't fix every issue immediately; treat each loaf as an experiment and log what you change.

🛒 Recommended Products

We recommend the following tools for this recipe:

🔧

Digital Kitchen Scale

Accurate measurements eliminate many common mistakes

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Banneton Proofing Basket

Improves shape and prevents stickiness during final proof

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Dutch Oven or Cast Iron Pot

Creates steam and oven spring, reducing flat or collapsed loaves

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Dough Scraper/Bench Knife

Makes handling and shaping sticky dough reliable

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What You Need

Must have:

Active sourdough starter

Bubbly and reliably rises after feeding (doubling within typical window for your starter)

⚠️ Create or refresh your starter first → more

Kitchen scale

Accurate to the gram

⚠️ Buy one — inconsistent weights cause most recipe failures

Dutch oven or heavy-lidded pot

Able to reach and hold baking temperatures

Alternative: Use a hot baking stone and steam pan if not available

Nice to have:

Why these fixes work:

Control of fermentation

Starter strength, temperature and timing directly control gas production and acidity; adjusting them targets texture and flavour [1][2].

Structure development

Folding, hydration and gluten development determine crumb openness; practical folding builds structure without overworking [1].

Heat and steam management

A hot enclosed environment early in the bake traps steam, improving oven spring and crust formation, which prevents flat loaves [1].

Ingredients

For: Common problem causes — conceptual "ingredients"

Starter activity	Variable	Weak starter = weak rise; over-active = faster proofs and more acidity
Timing and temperature	Critical	Room temp vs fridge proofs change fermentation rate drastically
Hydration	Too high or too low	Affects dough handling and crumb; beginners benefit from lower hydration
Shaping and scoring	Often overlooked	Poor shaping or shallow scoring leads to collapsed or irregular openings
Baking method	Important	Insufficient steam or low initial oven temp reduces oven spring and crust

Step by Step

Diagnose the fault → Adjust one variable → Test again

Check your starter first (5–15 min)

Do a simple activity check: feed and time how long until rise slows. If unsure, do a float test. Weak or inconsistent starters are the root of many problems[1].

✓ Starter reliably bubbles and doubles in a timeframe you expect

💡 If starter unreliable, store in glass jar so you can observe activity clearly

Match proofing time to temperature (10 min)

Warmer room = faster fermentation. When dough rises too quickly, shorten bulk proof or move to fridge. When it barely rises, extend time or raise temp slightly[2].

✓ Dough shows visible expansion but isn't collapsing

💡 A cool retard (refrigerator) adds flavour and gives flexibility

Adjust hydration sensibly (5 min)

If dough is unmanageably sticky and spreads, reduce water by 2–5% next bake. If crumb is dense, slightly increase hydration and improve folds to build strength[1].

✓ Dough feels tacky but holds shape after folding

💡 Use a kitchen scale — volume measures are inconsistent

Improve structure with folding (5–10 min spread over bulk)

Perform sets of stretch-and-folds instead of intense kneading. Four to six folds during the first two hours of bulk usually suffices to develop gluten[1].

✓ Dough becomes smoother and gains some elasticity

💡 Use a dough scraper to help manipulate sticky dough

Score and bake with steam (prep 30+ min)

Score with a bread lame or sharp blade to control expansion. Bake in a Dutch oven or add steam to the oven to encourage oven spring[1].

✓ Loaf opens where scored and shows good oven spring

💡 Preheat pot for at least 30 minutes to ensure proper burst of heat

Cooling and judging results (1–2 hours)

Cool fully before slicing. Internal temperature of 200–210°F (93–99°C) usually indicates done; use an instant-read thermometer if unsure[2].

✓ Crumb is set and not gummy after cooling

⚠️ Resist slicing early — the crumb continues to set as it cools

What If It Doesn't Work?

Quick diagnosis and targeted fixes — common beginner outcomes:

Flat, dense loaf

Likely: Weak starter, underproofed gluten development, or too low oven temp

Fix: Refresh starter, add more folds, preheat pot thoroughly and bake with steam[1]

→ More info

Gummy or underbaked crumb

Likely: Insufficient bake time or sliced too soon

Fix: Increase bake time, ensure internal temperature 93–99°C, cool longer before slicing[2]

→ More info

Overly sour flavour

Likely: Overfermentation during bulk or retard

Fix: Shorten proof or reduce relative amount of starter in the dough[2]

→ More info

Irregular large holes or tearing

Likely: Underdeveloped gluten or too high hydration without structure

Fix: Improve folding schedule, reduce hydration slightly, strengthen shaping

→ More info

Bread collapsed after scoring

Likely: Over-proofed or scoring too deep/shallow at wrong moment

Fix: Score just before baking, aim for 1/4–1/2 inch depth and bake immediately; shorten proof if collapse repeats[1]

→ More info

💪 Most issues are caused by a small number of variables; change one at a time and record results. Small adjustments compound into reliably better loaves.