✔ Updated · 9 causes and fixes, plus a high-hydration guide
When sourdough spreads into a pancake, the dough doesn't have the strength or tension to stand up. The fix is usually more gluten development, a little less water and tighter shaping.
Sourdough won't hold its shape when the gluten is too weak to support it. The most common causes are under-developed gluten, hydration that's too high for your flour or skill level, overproofing, and loose shaping with little surface tension. Add stretch and folds, lower the water a few percent, shape tightly, and cold-proof the loaf in a banneton before baking.
- Build strength: 3 to 4 sets of stretch and folds
- Lower hydration: 68 to 72% while learning
- Shape tight: pre-shape, rest, then shape again
- Cold proof: bake straight from the fridge
9 Reasons Sourdough Won't Hold Its Shape (and the Fix)
Most flat loaves have two or three of these going on at once. Fix the gluten and hydration first.
1. Weak gluten
Without enough strength the dough slumps. Add 3 or 4 sets of stretch and folds, 30 minutes apart, during bulk. The dough should feel springy and pull away cleanly.
2. Hydration too high
Wet dough spreads. Drop to 68 to 72 percent water while you learn, then work back up 2 percent at a time.
3. Overproofed dough
Gluten weakens as the dough over-ferments. If it collapses when turned out and smells boozy, shorten the bulk and keep an eye on the dough rather than the clock.
4. Not enough surface tension
Shaping should stretch a tight skin over the outside. Drag the shaped ball toward you on an unfloured counter so it grips and tightens.
5. Skipping the pre-shape
A loose pre-shape and a 20- to 30-minute bench rest lets you shape tighter the second time.
6. Low-protein flour
All-purpose flour gives a softer, slacker dough. Use bread flour (about 12 to 13 percent protein) for a loaf that stands tall.
7. No banneton support
A proofing basket, or a bowl lined with a floured towel, holds the shape during the final proof so it doesn't spread.
8. Warm dough at bake time
Warm, soft dough flattens the moment it leaves the basket. A cold proof in the fridge makes it firm and easy to score.
9. Weak starter
A sluggish starter makes slow, slack dough. Feed it until it reliably doubles in 4 to 8 hours at room temperature before you bake.
High-Hydration Sourdough Not Holding Shape?
Doughs at 75 percent hydration and up give that glossy, open crumb, but they're much harder to shape. Here's what makes the difference for me:
- Use strong bread flour, and add 10 to 20 percent whole wheat or rye, which absorbs more water.
- Hold back 5 percent of the water at the start, then add it during the first fold (bassinage).
- Do more folds, with wet hands, until the dough looks smooth and holds a rounded edge in the tub.
- Pre-shape, rest 20 to 30 minutes, then shape tightly. If it spreads a lot during the rest, pre-shape again.
- Proof overnight in the fridge and bake cold. Cold, firm dough keeps its height far better.
Is My Dough Overproofed or Underproofed?
| Sign | Underproofed | Just right | Overproofed |
|---|---|---|---|
| Poke test | Springs back fast | Springs back slowly, leaves a small dent | Doesn't spring back |
| Size during bulk | Under 30% bigger | About 50 to 75% bigger, domed | Doubled or more, flat or collapsing |
| Bubbles | Few | Some on top and sides | Large bubbles, sticky, slack |
| Baked loaf | Tight crumb, big burst | Good rise and open crumb | Flat, dense, pale |
A Simple Shaping Routine
This is the routine I use for a round loaf (boule):
- Turn the dough out onto a lightly floured counter, smooth side down.
- Fold the bottom third up, the sides in, then roll the top down toward you.
- Flip it seam-side down and drag it toward you with cupped hands or a bench scraper 3 or 4 times until the surface is tight.
- Dust with rice flour and place it seam-side up in a floured banneton.
- Cover and refrigerate 8 to 16 hours, then bake straight from the fridge.
More Bread Troubleshooting
Rising problems instead? Read why sourdough bread is not rising and why dough isn't rising. If your loaf comes out dark underneath, here's why bread burns on the bottom. Curious how sourdough compares to other loaves? See artisan vs sourdough bread.
Frequently Asked Questions
Why does my sourdough spread out flat in the oven?
It usually lacks gluten strength or surface tension, or it's overproofed. Build strength with stretch and folds, shape more tightly, avoid letting bulk fermentation run too long, and bake the dough cold from the fridge so it holds its height.
Can you reshape sourdough if it's too flat?
If it hasn't been baked, yes. Gently pre-shape it again, rest 20 minutes, reshape tightly and give it a short proof, ideally in the fridge. An overproofed dough won't fully recover, but it often makes good focaccia or pan bread.
What hydration is best for beginners?
Start around 68 to 72 percent with bread flour. That dough is still soft and makes a nice open crumb, but it's far easier to shape. Increase in small steps once you can shape it confidently.
Does a banneton help sourdough keep its shape?
Yes. It supports the dough during the final proof so it rises up instead of out, and it wicks a little moisture from the surface. A bowl lined with a well-floured kitchen towel works as a substitute.
Should sourdough be kneaded?
Light kneading or slap and folds early on help, but most sourdough builds strength with stretch and folds during bulk fermentation. The goal is a smooth, elastic dough that holds a rounded shape in the bowl.
