Why is my loaf gummy inside?
A gummy loaf almost always means the bread was under-baked, sliced too soon, or over-proofed. Fresh milled flour holds extra moisture, so loaves need a higher internal temperature and a full cool before slicing.
Key Takeaways
- Bake to an internal temperature of 205–210°F (96–99°C) for whole grain loaves.
- Cool completely — at least 1 hour, ideally 2 — before slicing.
- Over-proofed dough bakes gummy even when the crust looks right.
- Too much added fat, sweetener, or soaker can hold extra moisture in the crumb.
- A weak starter ferments without enough structure and leaves a paste-like center.
Problem
The crust looks done but the inside of the loaf is sticky, paste-like, or wet to the touch.
Symptoms
- Center of the slice is sticky or doughy.
- Knife drags through the middle of the loaf.
- Crumb compresses into a paste when squeezed.
- Bottom crust is soft or soggy.
- Loaf feels heavier than the size suggests.
Likely causes
Under-baked
Crust color is not a reliable doneness signal for whole grain bread. The interior needs to fully set.
Sliced too early
The crumb finishes setting as steam escapes during cooling. Slicing hot bread releases that steam and leaves the center wet.
Over-proofed
Dough that ferments past its peak loses structure and bakes into a tight, gummy slab.
Too much enrichment or soaker
Heavy additions of butter, honey, or pre-soaked grains add moisture the crumb cannot release.
Weak gluten or weak starter
Without a strong network the loaf cannot hold its shape, and the crumb collapses inward as it cools.
Solutions
- 1
Use a thermometer
Bake until the center reads 205–210°F (96–99°C). Pull earlier and the crumb will be gummy.
- 2
Bake longer at a lower temperature
If the crust browns before the center is set, drop the oven 25°F and add 5–10 minutes.
- 3
Cool fully on a wire rack
Wait at least 1 hour for small loaves, 2 hours for boules. Slicing too early is the most common cause.
- 4
Proof to just under peak
Aim for a slow-springing poke, not a totally collapsed one. Cold retard the dough if your kitchen runs warm.
- 5
Trim enrichments
Cut added fats, sweeteners, or soakers by 25% and re-test before changing anything else.
- 6
Strengthen your starter
Two back-to-back feeds at warm room temperature usually restore enough vigor to set the crumb.