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Troubleshooting

How to Tell If Sourdough Is Overproofed (and How to Save It)

Overproofed dough is slack, sticky, and won't hold a shape. Learn the poke test, the warning signs, and what to do next.

Margaret Cole2 min read

Sourdough is overproofed when the dough has fermented too long, the gluten has broken down, and it no longer springs back when poked. An overproofed loaf bakes flat, pale, and dense with a tight or gummy crumb. You can't fully reverse it, but you can salvage it as a focaccia or flatbread.

The poke test

Press a floured finger 1cm into the dough and watch:

ResultStage
Springs back fastUnderproofed — wait
Springs back slowly, dent partly fillsReady to bake
Dent stays, no springOverproofed
Dough deflates/sighsBadly overproofed

Other signs of overproofing

  • The dough has spread wide and flat instead of holding a dome.
  • It's covered in large surface bubbles that pop.
  • It feels slack, wet, and impossibly sticky.
  • It smells strongly sour, almost alcoholic.
  • It tears with no resistance.

Can you save overproofed dough?

You can't restore lost gluten structure, but you have options:

  1. Bake it as a boule anyway. It'll be flatter and denser but edible.
  2. Turn it into focaccia. Press it into an oiled pan, dimple it, top it, and bake. Overproofed dough is great for focaccia because you want it flat.
  3. Make flatbread or pizza. Stretch, top, bake hot.
  4. Re-shape gently if only slightly over — give it tension and bake immediately, no second proof.

Why it happens

The usual culprits are too-warm temperatures, too much starter, or simply losing track of time. A dough at 80°F ferments roughly twice as fast as one at 68°F. Summer kitchens overproof loaves that would've been perfect in winter.

Prevent it next time

  • Use a clear container and mark the start line — aim for 50–75% rise during bulk, not double.
  • In warm weather, cut bulk time or use less starter (10–15% instead of 20%).
  • Cold-retard in the fridge to slow things down and widen your bake window.

Frequently asked questions

Is overproofed dough safe to eat?

Yes, completely safe. It's a texture and structure problem, not a safety one.

What's the difference between overproofed and overfermented?

Overfermented usually refers to bulk fermentation going too long; overproofed refers to the final proof. Both mean the same end result: collapsed structure.

Can the fridge fix overproofing?

The fridge slows fermentation but won't undo gluten breakdown. Chilling overproofed dough just makes it easier to handle before baking.

Timing the proof to your kitchen's temperature is where most bakers struggle. SourdoughAI watches your kitchen temp and tells you when bulk and proof are actually done — not just a generic clock.