Last reviewed: 2026-06-05
Dense crumb checklist
Why is my sourdough dense?
Use the crumb pattern, dough feel, starter strength, and bake notes to find the most likely cause of a tight or gummy loaf.
Dense sourdough is most often caused by underfermentation, a weak starter, poor gluten development, or cutting the loaf before it cools. If the crumb is gummy with tight clusters and a pale crust, start by extending bulk fermentation and checking starter strength.
Dense sourdough diagnosis checklist
What do you see in this loaf?
Check the symptoms that match your loaf. The result gives you the highest-priority fix for your next bake.
The fastest way to diagnose dense sourdough
Start with fermentation. A loaf can look shaped correctly and still bake dense if bulk fermentation ended too early.
Then check starter strength. A mature starter should rise predictably after feeding, not just show bubbles on the surface.
Fix it on the next bake
Track dough temperature, bulk duration, starter percentage, and target rise. These four notes explain most dense crumb patterns.
If the dough was weak, add one fold set early in bulk and use bread flour or a slightly lower hydration until the process is stable.
FAQ
Why is my sourdough dense and gummy?+
Dense and gummy sourdough is commonly underfermented, underbaked, sliced too warm, or made with a weak starter.
Does dense sourdough mean it is underproofed?+
Often, but not always. Dense crumb can also come from weak gluten, too much water for the flour, poor shaping, or insufficient baking.
How do I fix dense sourdough next time?+
Use a stronger starter, track dough temperature, extend bulk fermentation gradually, and confirm the loaf is fully cooled before slicing.