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Common Sourdough Bread Mistakes and How to Fix Them
Have you ever taken a beautiful loaf out of the oven, admired its golden crust, and thought,
"This is the best bread I've ever baked."
Then you cut into it.
The crumb was gummy.
Or there was one enormous hole hiding beneath the crust.
Maybe the loaf barely rose at all. Perhaps it spread across the baking stone like a pancake instead of growing tall. Sometimes the bread even looked perfect at first, only to collapse while it cooled on the rack.
Every sourdough baker has experienced moments like these.
The surprising part is that most baking mistakes don't happen in the oven. They begin much earlier—during feeding, mixing, fermentation, shaping, or proofing. By the time the loaf is baking, the outcome has often been decided.
That is why sourdough can feel confusing.
One mistake can create several different problems. At the same time, the same problem can have completely different causes.
A gummy crumb doesn't always mean the bread was underbaked.
Poor oven spring doesn't always mean the starter was weak.
A loaf that spreads across the baking stone isn't always overproofed.
The bread is trying to tell you something—but you have to learn its language.
Once you understand the clues, every loaf becomes easier to improve.
This guide brings together the most common sourdough bread mistakes, explains why they happen, and helps you understand what to change next time. Wherever a topic deserves a deeper explanation, you'll also find links to more detailed guides.
"This is the best bread I've ever baked."
Then you cut into it.
The crumb was gummy.
Or there was one enormous hole hiding beneath the crust.
Maybe the loaf barely rose at all. Perhaps it spread across the baking stone like a pancake instead of growing tall. Sometimes the bread even looked perfect at first, only to collapse while it cooled on the rack.
Every sourdough baker has experienced moments like these.
The surprising part is that most baking mistakes don't happen in the oven. They begin much earlier—during feeding, mixing, fermentation, shaping, or proofing. By the time the loaf is baking, the outcome has often been decided.
That is why sourdough can feel confusing.
One mistake can create several different problems. At the same time, the same problem can have completely different causes.
A gummy crumb doesn't always mean the bread was underbaked.
Poor oven spring doesn't always mean the starter was weak.
A loaf that spreads across the baking stone isn't always overproofed.
The bread is trying to tell you something—but you have to learn its language.
Once you understand the clues, every loaf becomes easier to improve.
This guide brings together the most common sourdough bread mistakes, explains why they happen, and helps you understand what to change next time. Wherever a topic deserves a deeper explanation, you'll also find links to more detailed guides.
When the Dough Doesn't Rise
Few things are more discouraging than waiting six or eight hours and seeing almost no change in the bowl.
Most people immediately blame the starter.
Sometimes they're right.
But surprisingly often, the starter isn't the real problem.
Fermentation depends on several things working together. The starter must be active, the dough temperature must be warm enough, the flour has to provide food for the microorganisms, and time must be long enough for all of this to happen.
If just one of those factors is missing, the dough may appear lifeless.
For example, many beginners feed their starter in the morning, see it double beautifully, and assume it is ready to bake. Then they mix the dough using very cold water during winter. The starter is healthy, but the dough spends the next several hours at a temperature where fermentation slows dramatically.
The opposite can happen as well.
Sometimes the dough actually is fermenting, but much more slowly than expected. Instead of needing four hours, it simply needs seven.
That is why experienced bakers rarely watch the clock.
They watch the dough.
A dough that is fermenting well becomes lighter, smoother, and visibly fuller. Small bubbles begin appearing along the sides of the bowl, and the dough gradually feels more alive every time it is handled.
When none of these signs appear, it's time to look at the starter, the dough temperature, and the fermentation environment rather than assuming the recipe has failed.
Related guides
Most people immediately blame the starter.
Sometimes they're right.
But surprisingly often, the starter isn't the real problem.
Fermentation depends on several things working together. The starter must be active, the dough temperature must be warm enough, the flour has to provide food for the microorganisms, and time must be long enough for all of this to happen.
If just one of those factors is missing, the dough may appear lifeless.
For example, many beginners feed their starter in the morning, see it double beautifully, and assume it is ready to bake. Then they mix the dough using very cold water during winter. The starter is healthy, but the dough spends the next several hours at a temperature where fermentation slows dramatically.
The opposite can happen as well.
Sometimes the dough actually is fermenting, but much more slowly than expected. Instead of needing four hours, it simply needs seven.
That is why experienced bakers rarely watch the clock.
They watch the dough.
A dough that is fermenting well becomes lighter, smoother, and visibly fuller. Small bubbles begin appearing along the sides of the bowl, and the dough gradually feels more alive every time it is handled.
When none of these signs appear, it's time to look at the starter, the dough temperature, and the fermentation environment rather than assuming the recipe has failed.
Related guides
When the Dough Spreads Instead of Rising
You turn the dough out of the banneton, expecting it to stand proudly on the parchment.
Instead, it slowly begins to spread.
Within seconds, the beautiful round loaf has become a wide, flat disk.
Every sourdough baker remembers the first time this happened. It feels as though all those hours of mixing, folding, and waiting have been wasted.
But a spreading loaf isn't random bad luck. It is one of the clearest signs that the dough has lost the strength needed to support itself.
The first thing many bakers assume is that the dough contains too much water.
Sometimes that's true.
But hydration is only one small piece of the puzzle.
Professional bakers regularly work with doughs containing 75–85% hydration that stand beautifully in the oven. The difference isn't the amount of water—it's the strength of the gluten network holding that water.
Think of gluten as the framework inside a building.
Gas produced during fermentation fills thousands of tiny pockets inside the dough. If the framework is strong, the loaf grows upward. If that framework is weak, gravity wins, and the dough spreads outward.
Several things can weaken that structure.
One of the most common is overproofing.
As fermentation continues, the gluten stretches further and further. Eventually it reaches a point where it can no longer hold the expanding gas cells. The dough may even look wonderfully airy inside the banneton, but once the support disappears, the loaf slowly collapses under its own weight.
Another common cause is insufficient gluten development.
Some doughs simply haven't been strengthened enough during bulk fermentation. Perhaps there were too few stretch-and-folds. Maybe the dough was mixed only briefly. Sometimes the flour itself contains less protein than expected.
The result is similar.
The dough feels soft and pleasant to handle, but it lacks the internal strength needed to rise upward.
Hydration can also play a role.
Many beginners believe that adding more water automatically creates better artisan bread.
Beautiful photographs of open crumbs often encourage people to push hydration higher and higher.
In reality, high hydration only works when the flour is capable of supporting it.
If the dough is wetter than the gluten can handle, it behaves more like thick batter than bread dough.
Instead of trapping expanding gases, it slowly flows outward.
Shaping matters as well.
Good shaping doesn't simply make the loaf look pretty.
It creates surface tension.
Imagine stretching a piece of fabric tightly across a frame. That tension helps support the loaf during its final proof and the first minutes of baking.
Without enough surface tension, even a well-fermented dough may begin spreading before it reaches the oven.
Fortunately, this problem is often easier to solve than people think.
Instead of immediately changing everything, make only one adjustment during the next bake.
If you suspect overproofing, shorten the final proof slightly.
If the dough always feels weak, spend more time strengthening it during bulk fermentation.
If hydration seems excessive, reduce the water by just 2–3%.
Small changes usually teach you far more than completely changing the recipe.
Most importantly, remember that dough should be judged by how it behaves—not by how closely you followed the clock.
Two doughs made from the same recipe can behave very differently simply because the room temperature, flour, or starter activity changed.
Learning to recognize those differences is one of the biggest steps toward consistently beautiful sourdough.
Related guides
Instead, it slowly begins to spread.
Within seconds, the beautiful round loaf has become a wide, flat disk.
Every sourdough baker remembers the first time this happened. It feels as though all those hours of mixing, folding, and waiting have been wasted.
But a spreading loaf isn't random bad luck. It is one of the clearest signs that the dough has lost the strength needed to support itself.
The first thing many bakers assume is that the dough contains too much water.
Sometimes that's true.
But hydration is only one small piece of the puzzle.
Professional bakers regularly work with doughs containing 75–85% hydration that stand beautifully in the oven. The difference isn't the amount of water—it's the strength of the gluten network holding that water.
Think of gluten as the framework inside a building.
Gas produced during fermentation fills thousands of tiny pockets inside the dough. If the framework is strong, the loaf grows upward. If that framework is weak, gravity wins, and the dough spreads outward.
Several things can weaken that structure.
One of the most common is overproofing.
As fermentation continues, the gluten stretches further and further. Eventually it reaches a point where it can no longer hold the expanding gas cells. The dough may even look wonderfully airy inside the banneton, but once the support disappears, the loaf slowly collapses under its own weight.
Another common cause is insufficient gluten development.
Some doughs simply haven't been strengthened enough during bulk fermentation. Perhaps there were too few stretch-and-folds. Maybe the dough was mixed only briefly. Sometimes the flour itself contains less protein than expected.
The result is similar.
The dough feels soft and pleasant to handle, but it lacks the internal strength needed to rise upward.
Hydration can also play a role.
Many beginners believe that adding more water automatically creates better artisan bread.
Beautiful photographs of open crumbs often encourage people to push hydration higher and higher.
In reality, high hydration only works when the flour is capable of supporting it.
If the dough is wetter than the gluten can handle, it behaves more like thick batter than bread dough.
Instead of trapping expanding gases, it slowly flows outward.
Shaping matters as well.
Good shaping doesn't simply make the loaf look pretty.
It creates surface tension.
Imagine stretching a piece of fabric tightly across a frame. That tension helps support the loaf during its final proof and the first minutes of baking.
Without enough surface tension, even a well-fermented dough may begin spreading before it reaches the oven.
Fortunately, this problem is often easier to solve than people think.
Instead of immediately changing everything, make only one adjustment during the next bake.
If you suspect overproofing, shorten the final proof slightly.
If the dough always feels weak, spend more time strengthening it during bulk fermentation.
If hydration seems excessive, reduce the water by just 2–3%.
Small changes usually teach you far more than completely changing the recipe.
Most importantly, remember that dough should be judged by how it behaves—not by how closely you followed the clock.
Two doughs made from the same recipe can behave very differently simply because the room temperature, flour, or starter activity changed.
Learning to recognize those differences is one of the biggest steps toward consistently beautiful sourdough.
Related guides
When the Bread Doesn't Spring in the Oven
Few moments in bread baking are as exciting as watching a loaf during the first fifteen minutes in the oven.
This is when sourdough experiences oven spring—its final burst of expansion before the crust hardens and locks the shape in place.
When everything goes well, the loaf rises dramatically. The score opens into a beautiful ear, the bread becomes taller, and the crumb develops the light, open structure that every baker hopes to achieve.
But sometimes... nothing happens.
The loaf stays almost exactly the same size.
The score barely opens.
Instead of rising upward, the bread simply bakes where it sits.
It is easy to blame the oven or the scoring, but oven spring actually begins long before the loaf reaches the heat.
The first requirement is proper fermentation.
If the dough is underproofed, it still contains plenty of unused food for the yeast. That sounds like a good thing, but underproofed dough often has a tight, dense gluten structure. The gases cannot expand evenly, so the loaf may burst unpredictably or produce a dense crumb.
Overproofed dough has the opposite problem.
The yeast has already produced most of the gas it can, and the gluten network has stretched close to its limit. When the loaf enters the oven, there is very little strength left for one final expansion.
The result is weak oven spring and a flatter loaf.
Starter strength also plays an important role.
A starter may double beautifully after feeding but still lack the power needed to raise bread efficiently. Healthy yeast should produce enough gas not only during bulk fermentation but also during the first minutes of baking.
Scoring is another piece of the puzzle.
Many beginners believe that deeper cuts automatically create larger oven spring.
In reality, scoring is not designed to make bread rise. It simply gives expanding gases a controlled place to escape.
If the dough already lacks strength, no scoring technique can compensate for it.
Steam is equally important.
During the first part of baking, steam keeps the crust soft and flexible. This allows the loaf to continue expanding before the crust hardens.
Without enough steam, the crust sets too early. The bread becomes trapped inside its own shell and cannot reach its full volume.
Even oven temperature matters.
If the oven isn't fully preheated, the dough warms slowly instead of receiving the burst of heat needed for strong expansion. Professional bakers often spend far longer preheating their ovens than they spend mixing the dough itself.
Perhaps the most important lesson is this:
Oven spring is never created by a single factor.
It is the result of dozens of small decisions made throughout the entire baking process.
A healthy starter.
Well-developed gluten.
Proper fermentation.
Confident shaping.
Correct scoring.
Plenty of steam.
A thoroughly preheated oven.
When these elements work together, oven spring becomes almost effortless.
When one of them is missing, the loaf usually tells you exactly where the process began to go wrong.
Instead of asking,
"Why didn't my bread rise?"
try asking,
"Which part of the process prevented it from rising?"
That simple shift in thinking makes troubleshooting much easier.
Related guides
This is when sourdough experiences oven spring—its final burst of expansion before the crust hardens and locks the shape in place.
When everything goes well, the loaf rises dramatically. The score opens into a beautiful ear, the bread becomes taller, and the crumb develops the light, open structure that every baker hopes to achieve.
But sometimes... nothing happens.
The loaf stays almost exactly the same size.
The score barely opens.
Instead of rising upward, the bread simply bakes where it sits.
It is easy to blame the oven or the scoring, but oven spring actually begins long before the loaf reaches the heat.
The first requirement is proper fermentation.
If the dough is underproofed, it still contains plenty of unused food for the yeast. That sounds like a good thing, but underproofed dough often has a tight, dense gluten structure. The gases cannot expand evenly, so the loaf may burst unpredictably or produce a dense crumb.
Overproofed dough has the opposite problem.
The yeast has already produced most of the gas it can, and the gluten network has stretched close to its limit. When the loaf enters the oven, there is very little strength left for one final expansion.
The result is weak oven spring and a flatter loaf.
Starter strength also plays an important role.
A starter may double beautifully after feeding but still lack the power needed to raise bread efficiently. Healthy yeast should produce enough gas not only during bulk fermentation but also during the first minutes of baking.
Scoring is another piece of the puzzle.
Many beginners believe that deeper cuts automatically create larger oven spring.
In reality, scoring is not designed to make bread rise. It simply gives expanding gases a controlled place to escape.
If the dough already lacks strength, no scoring technique can compensate for it.
Steam is equally important.
During the first part of baking, steam keeps the crust soft and flexible. This allows the loaf to continue expanding before the crust hardens.
Without enough steam, the crust sets too early. The bread becomes trapped inside its own shell and cannot reach its full volume.
Even oven temperature matters.
If the oven isn't fully preheated, the dough warms slowly instead of receiving the burst of heat needed for strong expansion. Professional bakers often spend far longer preheating their ovens than they spend mixing the dough itself.
Perhaps the most important lesson is this:
Oven spring is never created by a single factor.
It is the result of dozens of small decisions made throughout the entire baking process.
A healthy starter.
Well-developed gluten.
Proper fermentation.
Confident shaping.
Correct scoring.
Plenty of steam.
A thoroughly preheated oven.
When these elements work together, oven spring becomes almost effortless.
When one of them is missing, the loaf usually tells you exactly where the process began to go wrong.
Instead of asking,
"Why didn't my bread rise?"
try asking,
"Which part of the process prevented it from rising?"
That simple shift in thinking makes troubleshooting much easier.
Related guides
- Why Doesn't My Sourdough Oven Spring?
- Why Does My Sourdough Burst on the Side?
- Why Does My Sourdough Spread Instead of Rising?
When the Crumb Doesn't Look Right
Most bakers judge a loaf by its crust.
Experienced bakers judge it by the crumb.
The moment you slice into sourdough, the inside begins telling the story of everything that happened before the bread ever reached the oven.
A gummy crumb.
Large tunnels.
Dense patches.
Tiny, tight holes.
An uneven texture.
None of these happen by chance.
Each one is a clue.
The challenge is that the same symptom can have more than one cause.
For example, many people believe a gummy crumb always means the bread wasn't baked long enough.
Sometimes that's true.
But a gummy crumb can also appear when the dough was underproofed, when hydration was too high for the flour, or when the loaf was sliced while it was still hot.
That is why looking at only one symptom rarely gives the whole answer.
The crumb should always be viewed together with the crust, the loaf's shape, and the way the dough behaved during fermentation.
Experienced bakers judge it by the crumb.
The moment you slice into sourdough, the inside begins telling the story of everything that happened before the bread ever reached the oven.
A gummy crumb.
Large tunnels.
Dense patches.
Tiny, tight holes.
An uneven texture.
None of these happen by chance.
Each one is a clue.
The challenge is that the same symptom can have more than one cause.
For example, many people believe a gummy crumb always means the bread wasn't baked long enough.
Sometimes that's true.
But a gummy crumb can also appear when the dough was underproofed, when hydration was too high for the flour, or when the loaf was sliced while it was still hot.
That is why looking at only one symptom rarely gives the whole answer.
The crumb should always be viewed together with the crust, the loaf's shape, and the way the dough behaved during fermentation.
A Gummy Crumb
Few sourdough problems are more frustrating.
The bread looks wonderful from the outside, but when you slice it, the knife sticks to the crumb. It feels damp, slightly shiny, and almost rubbery.
Many beginners immediately return the loaf to the oven.
Sometimes that helps.
Sometimes it doesn't.
If the loaf was simply removed too early, a longer bake is the solution.
But if fermentation wasn't complete, baking longer cannot fully fix the internal structure.
The crumb may still remain sticky because it never developed properly in the first place.
One more mistake is surprisingly common.
People cut the loaf after only twenty or thirty minutes because they can't wait to see the inside.
Fresh bread is still full of steam.
That steam continues setting the crumb for a long time after baking.
Cutting too early releases the moisture before the crumb has stabilized, leaving the center wetter than it should be.
The bread looks wonderful from the outside, but when you slice it, the knife sticks to the crumb. It feels damp, slightly shiny, and almost rubbery.
Many beginners immediately return the loaf to the oven.
Sometimes that helps.
Sometimes it doesn't.
If the loaf was simply removed too early, a longer bake is the solution.
But if fermentation wasn't complete, baking longer cannot fully fix the internal structure.
The crumb may still remain sticky because it never developed properly in the first place.
One more mistake is surprisingly common.
People cut the loaf after only twenty or thirty minutes because they can't wait to see the inside.
Fresh bread is still full of steam.
That steam continues setting the crumb for a long time after baking.
Cutting too early releases the moisture before the crumb has stabilized, leaving the center wetter than it should be.
Large Holes Aren't Always a Success
Open crumb photographs fill social media.
Huge holes are often presented as proof of perfect sourdough.
In reality, one enormous hole surrounded by dense bread is usually a mistake rather than an achievement.
Those tunnels often form when shaping traps large pockets of air or when fermentation develops unevenly.
Sometimes they appear because the dough entered the oven before fermentation had finished.
The loaf expands violently in one area instead of evenly throughout the crumb.
The result looks dramatic, but it usually makes the bread harder to slice and less enjoyable to eat.
A beautiful crumb isn't judged by the size of the holes.
It's judged by how evenly the structure supports the loaf.
Huge holes are often presented as proof of perfect sourdough.
In reality, one enormous hole surrounded by dense bread is usually a mistake rather than an achievement.
Those tunnels often form when shaping traps large pockets of air or when fermentation develops unevenly.
Sometimes they appear because the dough entered the oven before fermentation had finished.
The loaf expands violently in one area instead of evenly throughout the crumb.
The result looks dramatic, but it usually makes the bread harder to slice and less enjoyable to eat.
A beautiful crumb isn't judged by the size of the holes.
It's judged by how evenly the structure supports the loaf.
Dense Bread Doesn't Always Mean Weak Starter
Many people immediately blame their starter when the crumb feels heavy.
Again, the starter may not be the real cause.
Dense bread can result from:
Each of these limits the loaf's ability to expand.
This is why experienced bakers rarely change five things after one disappointing bake.
They change one variable.
Then they watch what changes inside the loaf.
The crumb becomes a notebook filled with useful information.
Again, the starter may not be the real cause.
Dense bread can result from:
- underproofing;
- insufficient gluten development;
- shaping too tightly;
- low hydration;
- flour with lower protein;
- poor oven spring.
Each of these limits the loaf's ability to expand.
This is why experienced bakers rarely change five things after one disappointing bake.
They change one variable.
Then they watch what changes inside the loaf.
The crumb becomes a notebook filled with useful information.
Learn to Read the Crumb
Every slice tells a story.
Small, even holes usually suggest balanced fermentation.
Large random tunnels point toward uneven gas distribution.
A compressed bottom may indicate underproofing or underbaking.
A gummy center often suggests either excess moisture or an unstable crumb structure.
Instead of asking whether your crumb is "good" or "bad," ask yourself a better question:
What is this crumb trying to tell me?
The answer almost always leads back to something that happened during mixing, fermentation, shaping, proofing, or baking.
Once you learn to connect those stages, sourdough becomes much less mysterious.
The loaf stops feeling unpredictable because you begin understanding why it behaves the way it does.
Related guides
Small, even holes usually suggest balanced fermentation.
Large random tunnels point toward uneven gas distribution.
A compressed bottom may indicate underproofing or underbaking.
A gummy center often suggests either excess moisture or an unstable crumb structure.
Instead of asking whether your crumb is "good" or "bad," ask yourself a better question:
What is this crumb trying to tell me?
The answer almost always leads back to something that happened during mixing, fermentation, shaping, proofing, or baking.
Once you learn to connect those stages, sourdough becomes much less mysterious.
The loaf stops feeling unpredictable because you begin understanding why it behaves the way it does.
Related guides
When the Crust Doesn't Turn Out the Way You Expected
The crust is the first thing people notice.
It's the rich golden color, the crackling sound as the loaf cools, and the crisp texture that make freshly baked sourdough so irresistible.
But the crust is also one of the easiest parts of the bread to get wrong.
Sometimes it becomes so thick that it's difficult to slice.
Sometimes it stays pale no matter how long the loaf bakes.
The bottom burns before the rest of the bread is ready.
Or the beautiful crisp crust disappears within an hour of cooling.
Although these problems look completely different, they often begin for the same reasons: fermentation, steam, oven temperature, and baking time.
It's the rich golden color, the crackling sound as the loaf cools, and the crisp texture that make freshly baked sourdough so irresistible.
But the crust is also one of the easiest parts of the bread to get wrong.
Sometimes it becomes so thick that it's difficult to slice.
Sometimes it stays pale no matter how long the loaf bakes.
The bottom burns before the rest of the bread is ready.
Or the beautiful crisp crust disappears within an hour of cooling.
Although these problems look completely different, they often begin for the same reasons: fermentation, steam, oven temperature, and baking time.
A Thick Crust Isn't Always Better
Many bakers believe that a thick crust is a sign of authentic artisan bread.
Not necessarily.
A good sourdough crust should be crisp, flavorful, and pleasant to eat—not so hard that it scratches the roof of your mouth.
An unusually thick crust often develops when the loaf spends too long in the oven or loses too much moisture during baking.
Low hydration can also contribute, as can baking without enough steam.
The crust hardens too early, dries excessively, and continues thickening while the inside is still baking.
Sometimes the solution isn't baking for less time.
Instead, it's improving steam during the first part of the bake or reducing the final drying stage by just a few minutes.
Not necessarily.
A good sourdough crust should be crisp, flavorful, and pleasant to eat—not so hard that it scratches the roof of your mouth.
An unusually thick crust often develops when the loaf spends too long in the oven or loses too much moisture during baking.
Low hydration can also contribute, as can baking without enough steam.
The crust hardens too early, dries excessively, and continues thickening while the inside is still baking.
Sometimes the solution isn't baking for less time.
Instead, it's improving steam during the first part of the bake or reducing the final drying stage by just a few minutes.
Why the Crust Stays Pale
Few things are more disappointing than removing a loaf that looks fully baked but never developed that beautiful deep golden color.
The first reaction is usually to increase the baking time.
Sometimes that works.
But color doesn't depend only on time.
A pale crust can also be caused by:
Bread browns best after the steam is released and the crust begins to dry.
If moisture remains trapped inside the oven for too long, the crust may stay lighter than expected.
The first reaction is usually to increase the baking time.
Sometimes that works.
But color doesn't depend only on time.
A pale crust can also be caused by:
- underproofed dough;
- weak fermentation;
- low oven temperature;
- insufficient caramelization;
- too much steam throughout the entire bake.
Bread browns best after the steam is released and the crust begins to dry.
If moisture remains trapped inside the oven for too long, the crust may stay lighter than expected.
A Burnt Bottom
This is one of the most common problems for home bakers using Dutch ovens or baking steels.
The top of the loaf looks perfect.
The crumb is excellent.
Then you turn it over—and the bottom is almost black.
Usually, the bread isn't the problem.
The baking surface is.
Baking steels, pizza stones, and cast-iron Dutch ovens store an enormous amount of heat.
That heat transfers directly into the bottom of the loaf long before the rest of the bread finishes baking.
Simple adjustments often solve the issue.
Moving the baking rack higher, placing an empty baking tray beneath the Dutch oven, or slightly reducing the baking temperature during the second half of the bake can make a dramatic difference.
The top of the loaf looks perfect.
The crumb is excellent.
Then you turn it over—and the bottom is almost black.
Usually, the bread isn't the problem.
The baking surface is.
Baking steels, pizza stones, and cast-iron Dutch ovens store an enormous amount of heat.
That heat transfers directly into the bottom of the loaf long before the rest of the bread finishes baking.
Simple adjustments often solve the issue.
Moving the baking rack higher, placing an empty baking tray beneath the Dutch oven, or slightly reducing the baking temperature during the second half of the bake can make a dramatic difference.
When the Crust Softens
Fresh sourdough often comes out of the oven with a wonderfully crisp crust.
An hour later it feels completely different.
Many bakers assume they've done something wrong.
In fact, some softening is perfectly natural.
As the loaf cools, moisture from the crumb moves toward the crust.
That moisture gradually softens the surface.
The effect is stronger in humid weather and with higher-hydration doughs.
The goal isn't to keep the crust rock-hard forever.
The goal is to develop a crust that stays pleasantly crisp while remaining enjoyable to eat.
An hour later it feels completely different.
Many bakers assume they've done something wrong.
In fact, some softening is perfectly natural.
As the loaf cools, moisture from the crumb moves toward the crust.
That moisture gradually softens the surface.
The effect is stronger in humid weather and with higher-hydration doughs.
The goal isn't to keep the crust rock-hard forever.
The goal is to develop a crust that stays pleasantly crisp while remaining enjoyable to eat.
Every Crust Tells Part of the Story
The crust is more than decoration.
It records what happened inside the oven.
Its color reflects fermentation and caramelization.
Its thickness reveals how moisture escaped during baking.
Its texture shows whether steam was balanced correctly.
Learning to read the crust helps you understand what happened long before you ever cut into the loaf.
And when you combine what the crust tells you with what you see inside the crumb, troubleshooting becomes much easier.
Related guides
It records what happened inside the oven.
Its color reflects fermentation and caramelization.
Its thickness reveals how moisture escaped during baking.
Its texture shows whether steam was balanced correctly.
Learning to read the crust helps you understand what happened long before you ever cut into the loaf.
And when you combine what the crust tells you with what you see inside the crumb, troubleshooting becomes much easier.
Related guides
When the Bread Doesn't Taste Right
Sometimes the loaf looks beautiful.
The crust is deeply golden.
The crumb is light and airy.
The oven spring is exactly what you hoped for.
Then you take the first bite.
Instead of the balanced flavor you expected, the bread is surprisingly sour. Or almost completely bland. Occasionally it even has a sharp alcoholic aftertaste that seems completely out of place.
Many bakers immediately start changing their recipe.
They add more salt.
They reduce the hydration.
They switch to another flour.
In reality, the flavor of sourdough is shaped long before the dough enters the oven.
The real answer is usually found in the fermentation.
The crust is deeply golden.
The crumb is light and airy.
The oven spring is exactly what you hoped for.
Then you take the first bite.
Instead of the balanced flavor you expected, the bread is surprisingly sour. Or almost completely bland. Occasionally it even has a sharp alcoholic aftertaste that seems completely out of place.
Many bakers immediately start changing their recipe.
They add more salt.
They reduce the hydration.
They switch to another flour.
In reality, the flavor of sourdough is shaped long before the dough enters the oven.
The real answer is usually found in the fermentation.
When the Bread Is Too Sour
One of the most common questions new sourdough bakers ask is,
"Why is my bread so sour?"
The answer is almost never just one thing.
Long fermentation gives the bacteria in the starter more time to produce organic acids. Warm temperatures accelerate that process. An overripe starter, a long stay in the refrigerator, or repeated overproofing can all make the loaf noticeably tangier.
Some people enjoy that bold sour flavor.
Others prefer bread with a mild, creamy taste.
Neither is wrong.
It's simply a matter of learning how fermentation changes the balance between yeast activity and acid production.
Fortunately, sourness is one of the easiest characteristics to adjust.
A younger starter, slightly shorter fermentation, or warmer feeding schedule often produces a much milder loaf.
"Why is my bread so sour?"
The answer is almost never just one thing.
Long fermentation gives the bacteria in the starter more time to produce organic acids. Warm temperatures accelerate that process. An overripe starter, a long stay in the refrigerator, or repeated overproofing can all make the loaf noticeably tangier.
Some people enjoy that bold sour flavor.
Others prefer bread with a mild, creamy taste.
Neither is wrong.
It's simply a matter of learning how fermentation changes the balance between yeast activity and acid production.
Fortunately, sourness is one of the easiest characteristics to adjust.
A younger starter, slightly shorter fermentation, or warmer feeding schedule often produces a much milder loaf.
When the Bread Has Almost No Flavor
The opposite problem surprises many beginners.
The bread rises well.
The crumb looks beautiful.
But the flavor feels... empty.
Instead of the rich aroma associated with artisan sourdough, it tastes almost like ordinary white bread.
This usually happens because fermentation ended before enough flavor compounds had developed.
Wild yeast creates carbon dioxide that makes bread rise.
Lactic acid bacteria create many of the aromas and flavors that make sourdough unique.
If fermentation is rushed, the loaf may have excellent volume but very little character.
Bread needs time not only to rise, but also to develop flavor.
The bread rises well.
The crumb looks beautiful.
But the flavor feels... empty.
Instead of the rich aroma associated with artisan sourdough, it tastes almost like ordinary white bread.
This usually happens because fermentation ended before enough flavor compounds had developed.
Wild yeast creates carbon dioxide that makes bread rise.
Lactic acid bacteria create many of the aromas and flavors that make sourdough unique.
If fermentation is rushed, the loaf may have excellent volume but very little character.
Bread needs time not only to rise, but also to develop flavor.
An Unpleasant Alcohol Smell
Occasionally the finished loaf carries a noticeable alcoholic aroma.
Most often, the bread itself isn't the problem.
The starter is.
A starter that spends too long without feeding begins producing more alcohol as available food disappears.
If that starter is used without refreshing, part of that aroma may carry into the dough.
The solution usually begins before mixing the dough.
Keeping the starter healthy and feeding it consistently has a much bigger effect on flavor than changing the recipe.
Most often, the bread itself isn't the problem.
The starter is.
A starter that spends too long without feeding begins producing more alcohol as available food disappears.
If that starter is used without refreshing, part of that aroma may carry into the dough.
The solution usually begins before mixing the dough.
Keeping the starter healthy and feeding it consistently has a much bigger effect on flavor than changing the recipe.
Flavor Begins With the Starter
Many people think flavor comes mainly from ingredients.
Experienced bakers know that flavor comes from time.
Time allows yeast and bacteria to transform simple flour and water into something far more complex.
That is why two loaves made from exactly the same recipe can taste completely different.
The difference isn't the ingredients.
It's what happened during fermentation.
Instead of chasing the perfect recipe, learn to understand how your starter behaves, how temperature changes fermentation, and how timing affects flavor.
Once those pieces come together, the bread begins tasting exactly the way you want.
Related guides
Experienced bakers know that flavor comes from time.
Time allows yeast and bacteria to transform simple flour and water into something far more complex.
That is why two loaves made from exactly the same recipe can taste completely different.
The difference isn't the ingredients.
It's what happened during fermentation.
Instead of chasing the perfect recipe, learn to understand how your starter behaves, how temperature changes fermentation, and how timing affects flavor.
Once those pieces come together, the bread begins tasting exactly the way you want.
Related guides
- Why Is My Sourdough Too Sour?
- Why Does My Sourdough Starter Smell Like Alcohol?
- Can You Bake Bread With an Overripe Starter?
- How to Tell When Your Sourdough Starter Is Ready to Bake
The Biggest Mistake Isn't a Baking Mistake
After reading this guide, you may have noticed something.
Very few sourdough problems have only one cause.
A dense loaf isn't always underproofed.
A gummy crumb isn't always underbaked.
Poor oven spring isn't always caused by a weak starter.
Everything in sourdough is connected.
One small change early in the process often shows itself much later.
That is why experienced bakers don't judge a loaf as simply "good" or "bad."
They treat every bake as feedback.
The loaf is telling a story.
The crust tells you what happened in the oven.
The crumb tells you what happened during fermentation.
The shape tells you about gluten strength.
The flavor tells you about time and starter activity.
Learning to read those signs is far more valuable than memorizing recipes.
Recipes give you a starting point.
Understanding gives you consistency.
Don't be discouraged by a loaf that isn't perfect.
Every baker—even those with years of experience—still bakes bread that doesn't turn out exactly as planned.
The difference is that experienced bakers no longer see mistakes as failures.
They see them as clues.
Each imperfect loaf teaches you something new about your flour, your starter, your kitchen, and your baking process.
That lesson is worth far more than one perfect loaf.
The goal of sourdough baking isn't perfection.
It's understanding.
And once you begin understanding your bread, you'll discover that every loaf becomes a little better than the one before.
Very few sourdough problems have only one cause.
A dense loaf isn't always underproofed.
A gummy crumb isn't always underbaked.
Poor oven spring isn't always caused by a weak starter.
Everything in sourdough is connected.
One small change early in the process often shows itself much later.
That is why experienced bakers don't judge a loaf as simply "good" or "bad."
They treat every bake as feedback.
The loaf is telling a story.
The crust tells you what happened in the oven.
The crumb tells you what happened during fermentation.
The shape tells you about gluten strength.
The flavor tells you about time and starter activity.
Learning to read those signs is far more valuable than memorizing recipes.
Recipes give you a starting point.
Understanding gives you consistency.
Don't be discouraged by a loaf that isn't perfect.
Every baker—even those with years of experience—still bakes bread that doesn't turn out exactly as planned.
The difference is that experienced bakers no longer see mistakes as failures.
They see them as clues.
Each imperfect loaf teaches you something new about your flour, your starter, your kitchen, and your baking process.
That lesson is worth far more than one perfect loaf.
The goal of sourdough baking isn't perfection.
It's understanding.
And once you begin understanding your bread, you'll discover that every loaf becomes a little better than the one before.
Sourdough Problems
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Made with flour, patience, and love.
Made with flour, patience, and love.