5 Sourdough Baking Mistakes and How to Fix Them in Real Time

Most sourdough mistakes can be fixed in the moment if you catch them. The bread might not be perfect, but it'll be good. Here are five common mid-bake problems and the real-time fixes.

Mistake 1: You realize bulk fermentation is going too fast

You set a timer for 5 hours. At hour 3, the dough is already at 70% rise. Your kitchen is warmer than expected.

What's happening

The dough is fermenting faster than planned. If you wait the full 5 hours, you'll overproof.

The fix

• Move the dough to the fridge immediately
• Let it cool for 30 minutes
• Resume on the counter for the remaining time
• Or shape now and proceed to the cold proof

The fridge stops fermentation. You can pick up the bake when timing is right.

Mistake 2: You realize bulk fermentation is going too slow

You're 5 hours into bulk and the dough has barely risen. Your kitchen is colder than usual.

What's happening

Slow fermentation. The dough needs more time or warmth.

The fix

• Move the dough to a warmer spot (oven with light on, near radiator, etc.)
• Wait additional 1–2 hours
• Don't shape until you see 50–70% rise

Don't bake under-fermented dough. The bread will be dense.

Mistake 3: You realize you forgot to add salt

You're 1 hour into bulk and remember the salt never went in.

What's happening

Salt is essential for flavor and gluten development. Without it, the bread is bland and the structure is weak.

The fix

• Sprinkle the right amount of salt over the dough
• Pinch it in with your fingers
• Do an extra fold to distribute
• Continue with bulk

The dough won't be exactly the same as if salt had been added at mix, but it'll be very close.

Mistake 4: You realize the dough is too sticky to shape

You've finished bulk. You tip the dough onto the counter for shaping. It spreads into a puddle.

What's happening

Either over-fermented, too much hydration, or insufficient gluten development.

The fix (depending on cause)

• If over-fermented: shape gently, do a short final proof, bake. The bread will be slightly flat but edible.
• If hydration too high: dust with rice flour, shape with wet hands, accept a flatter loaf
• If insufficient gluten: do 2 more sets of folds at 30-minute intervals before shaping

In any case, don't try to add flour. That changes the dough chemistry.

Mistake 5: You realize the loaf is overproofed in the basket

You take the loaf out of the fridge. It's grown beyond recognition. Bubbles all over. Slack and flat.

What's happening

Cold fermentation went on too long. The dough is past its peak.

The fix

• Bake immediately (don't wait)
• Increase oven temp by 25°F (helps the loaf set fast)
• Skip steam (don't extend the wet period)
• Shorter bake time (the dough won't have much spring)

The bread will be flat and slightly dense, but flavorful and edible. Use for sandwiches or toast.

Mistake 6: You realize the oven was off

You preheated, set the loaf in, and 15 minutes later realize the oven knob was on "off." The bread is sitting warm but not baking.

What's happening

The bread has been resting at warm temperature without baking. Some additional fermentation has occurred.

The fix

• Turn oven on to 475°F immediately
• The loaf will start baking once oven heats
• Total bake time will be similar to normal (the warm rest counts as part of the bake)
• Internal temperature is your only guide now

Surprisingly, this often produces an over-proofed but edible loaf.

Mistake 7: You realize you're out of starter

You planned to bake but your starter is sluggish or hasn't doubled.

What's happening

Your starter isn't ready. Baking now will produce dense bread.

The fix

• Build a quick levain with what you have
• Use higher feeding ratio (1:5:5 or 1:10:10)
• Wait for peak (4–8 hours)
• Or use commercial yeast as backup

Don't bake with weak starter and hope for the best. It won't work.

Mistake 8: You realize you've used the wrong flour

You start mixing and realize you used cake flour instead of bread flour.

What's happening

Cake flour has very low protein. Bread won't develop strong gluten.

The fix

• Add 1–2% vital wheat gluten if available
• Or accept a softer, denser loaf (treat it like a sandwich loaf recipe)
• Or scrap the dough and start over

For a recipe with low-protein flour, focus on flavor (whole grain inclusions, herbs) rather than chasing oven spring.

Mistake 9: You realize the Dutch oven didn't preheat

You go to bake and the Dutch oven is barely warm.

What's happening

The oven turned off, you opened the door too early, or you forgot to preheat.

The fix

• Preheat now (Dutch oven and oven together) for 30 more minutes
• Do another fold with the shaped dough to redistribute fermentation
• The dough will be slightly past its peak by then; bake immediately when ready

The bread will be slightly less dramatic in spring but still good.

Mistake 10: You realize the bread is over-baked

You pull the loaf out and the crust is very dark, possibly almost black.

What's happening

Bake time was too long, or oven was hotter than indicated.

The fix (depending on severity)

• Slight over-bake: just dark crust, interior is fine. Eat as normal.
• Moderate over-bake: cut off the burnt parts, use the interior for sandwiches
• Severe over-bake: cut into croutons (the burnt flavor is less obvious in croutons)

Every over-baked loaf has some good in it. Don't throw away the whole thing.

Mistake 11: You realize the bread is under-baked

You pull the loaf, it looks done, but feels light and soft.

What's happening

Internal temperature didn't reach 207°F.

The fix

• Put it back in the oven
• Bake another 10 minutes
• Check internal temperature
• Repeat if needed

Don't try to "finish baking" with a microwave or other shortcut. The oven is the only way.

Mistake 12: You realize you cut into the loaf too soon

You can't wait. You cut the bread at 30 minutes. The crumb is gummy.

What's happening

Steam was still trapped inside. Cutting prematurely lets it escape into the crumb.

The fix

• For the cut piece: toast it (the dry heat finishes the cooking)
• For the rest of the loaf: let it cool another hour before any more cuts
• Next time: wait 90 minutes minimum before cutting

The cut piece won't recover fully, but it's still edible.

Mistake 13: You realize the dough is cold but you need to bake

It's been cold-retarding 24 hours. You have 30 minutes before you need bread for dinner.

What's happening

Cold-retarded dough usually needs 1–2 hours of warm proof before baking.

The fix

• Bake straight from cold
• The bread will have less open crumb
• Slightly tighter texture
• But still good
• And cold-baked bread sometimes has BETTER crust

Cold baking isn't worse, just different. Embrace it when you're short on time.

A philosophy of mistakes

In sourdough, mistakes happen. Even experienced bakers make them.

What separates good bakers from quitters:

• Good bakers see mistakes as data
• They fix what they can
• They bake the loaf (even if imperfect)
• They learn for next time

Quitters see mistakes as evidence they're failing. They throw out the dough or stop baking.

When to start over vs. push through

Push through if:

• The dough is fermenting too fast (slow it down)
• You forgot an ingredient that can be added later (salt, inclusions)
• You over-proofed slightly (bake anyway)

Start over if:

• The starter is dead (can't fix mid-bake)
• You added the wrong flour and it's seriously wrong
• The dough has obvious mold
• You used wrong measurements (e.g., 50% of recipe instead of 100%)

A real-world story

I once forgot to preheat the oven before scoring and ready to bake a loaf. By the time I realized, the dough had sat warm for 20 minutes.

I baked it anyway. The bread was slightly over-proofed and flat. But it tasted great. Family ate the whole loaf.

The "ruined" bread was just a different bread than I planned. Still good food.

A final thought

Most sourdough mistakes don't ruin the bread. They just produce different bread.

Embrace the imperfection. Fix what you can. Bake what you have. Eat the result.

Every "failed" loaf teaches you something for the next bake. Over time, mistakes become rarer and recoveries become more confident.

That's how sourdough mastery is built — one imperfect loaf at a time.