Why does my sourdough always come out flat?

Consistent flatness usually indicates overproofing. Try reducing proof time, using less starter, or proofing in the refrigerator where you have more control.

Does steam affect loaf height?

Yes, steam is crucial for oven spring. It keeps the crust soft so the bread can expand before the crust sets. Use a Dutch oven or add steam to your oven.

Can scoring technique cause flat loaves?

Scoring affects where the bread expands but not overall height. However, poor scoring on overproofed dough can cause collapse.

Flat Loaf

Baking

A flat loaf that spreads wide instead of rising tall is disappointing but common. Understanding why it happened helps you make adjustments for your next bake to achieve that tall, proud loaf.

Flat Loaf in sourdough most often traces back to Flat loaves result from overproofing, weak gluten, insufficient shaping tension, or baking without enough steam, a bake-stage problem you can usually correct mid-bake. This page lists 3 immediate interventions to try on the current batch plus 4 adjustments to stop it recurring. Fixes assume a 68-72°F kitchen and an active, ripe starter.

How do I fix flat loaf right now?

Work through these reversible steps on the batch in front of you, in order. Each one targets a different failure mode, so the first match is usually the fix — stop as soon as the dough responds and resume your normal process from there.

1For the current loaf, bake anyway—flat bread still tastes good
2Note the conditions (temperature, timing, hydration) for next time
3Slice for sandwiches or toast—flat loaves make great crostini

What are the detailed fixes for flat loaf?

If the quick steps above did not resolve things, these deeper adjustments rework the mix, fermentation, or handling stage where flat loaf usually originates. Each card explains what to change, the reason it works, and the baking stage it belongs to.

Use Flat Loaf Creatively

Easy

Make the best of what you have.

Let loaf cool completely
Slice horizontally for sandwich bread
Or slice thin for crostini or bruschetta
Toast brings out great flavor

Document and Improve

Moderate

Use this bake to improve the next one.

Note all variables: timing, temp, hydration
Photograph the dough at each stage
Review shaping and proofing techniques
Adjust one variable for next bake

What causes flat loaf in sourdough?

Flat loaves result from overproofing, weak gluten, insufficient shaping tension, or baking without enough steam. Contributing factors include: Overproofed dough that lost structure, Weak gluten development, Insufficient tension during shaping, Baking without steam, Oven temperature too low, High hydration with weak flour.

How do I prevent flat loaf next time?

Prevention is easier than a mid-bake rescue. The tips below target the variables — starter timing, hydration, temperature, and handling — that most often set up flat loaf, so you build the fix into your process instead of reacting to a dough that has already drifted.

Do not overproof—use the poke test and bake when dough springs back slowly
Build strong gluten with regular stretch and folds during bulk
Create good tension during shaping—the surface should be smooth and taut
Bake with steam for the first 15-20 minutes for maximum oven spring

What issues relate to flat loaf?

Having other problems? Check out these related troubleshooting guides.

Overproofed Weak Gluten Dough Won't Hold Shape Dense Crumb