Russell Groves
2026-03-03T09:17:05+00:00

How To Shape Sourdough Properly For Better Oven Spring

How To Shape Sourdough Properly is the step that gives your sourdough its structure and height. Even well fermented dough can bake flat if it is shaped poorly. When shaping is done correctly, the loaf rises upward in the oven instead of spreading outward.

Many beginners underestimate this stage. In reality, shaping is what creates the surface tension that supports strong oven spring.

Why Shaping Matters

During bulk fermentation, gas builds inside the dough. Shaping organises that structure and creates tension across the surface.

Good shaping:

• Builds surface tension

• Helps the loaf hold its form

• Directs expansion in the oven

• Improves crumb structure

Without enough tension, the dough relaxes and spreads. With too much force, the structure can tear. The goal is firm but controlled shaping.

Pre Shaping

After bulk fermentation, turn the dough onto your work surface.

Use a dough scraper to gently guide it into a loose round shape. This is called pre shaping. It should not be tight. The purpose is simply to organise the dough before its final shape.

Let the dough rest for twenty to thirty minutes. This allows the gluten to relax and makes final shaping easier.

If the dough spreads completely during this rest, bulk fermentation may have gone too far. If it holds a soft rounded form, you are on the right track.

Building Surface Tension

Final shaping is where tension is created.

For a round loaf, gently stretch the edges of the dough toward the centre, rotating as you go. Then flip it seam side down and pull it toward you on the work surface. This dragging motion tightens the surface.

You should feel the outer layer becoming smoother and slightly taut. The dough should hold a rounded shape without collapsing.

For an oval loaf, the process is similar but the folds are arranged to create length rather than width.

The key is control. Avoid pressing out all the gas. You are shaping the dough, not kneading it.

Using A Dough Scraper During Shaping

A dough scraper makes shaping far easier, especially with higher hydration dough.

It helps you:

• Lift and rotate the dough cleanly

• Maintain control without adding extra flour

• Create tension without sticking

Adding too much flour during shaping can tighten the crumb and reduce oven spring. A scraper allows confident handling without over dusting.

Why A Banneton Helps

Once shaped, the dough needs support during final proofing.

Placing the dough seam side up into a floured banneton helps it maintain structure. The sides of the basket prevent spreading and encourage upward rise.

If dough is left unsupported in a bowl that is too wide, it can relax and flatten before baking.

Matching your banneton size to your dough weight improves consistency.

Common Shaping Mistakes

Shaping too loosely is the most common issue. Without enough surface tension, the loaf spreads and bakes flat.

Shaping too aggressively can also cause problems. Pressing too firmly forces gas out of the dough and can lead to a tighter crumb.

Another mistake is adding excessive flour to manage stickiness. Sticky dough is normal in sourdough baking. Use a dough scraper and light flouring with the right bread flour rather than coating the surface heavily.

How Shaping Affects Oven Spring

Oven spring happens in the first part of baking when trapped gas expands rapidly.

If the dough has strong surface tension, it directs that expansion upward. If tension is weak, the loaf expands sideways.

Confident scoring with a bread lame works alongside good shaping. The score creates a controlled weak point where the loaf can open cleanly instead of tearing unpredictably.

Final Thoughts

Shaping is where structure meets control. It does not need to be complicated, but it does require attention.

Focus on building gentle but firm surface tension. Let the dough rest between stages. Avoid over handling.

With practice, you will start to feel when the dough is tight enough. When shaping improves, oven spring improves, and the overall structure of your sourdough becomes more consistent.

Small refinements at this stage often make a noticeable difference in the final loaf.

If you are refining your technique, using the right sourdough tools can make shaping far more consistent.