Troubleshooting
Underbaked Sourdough: Can You Re-Bake It?
Yes — you can rescue an underbaked loaf. Here's how to re-bake it, plus how to nail doneness next time.
Yes, you can re-bake underbaked sourdough — return the whole loaf to a 350°F oven for 10–20 minutes, or slice it and toast the pieces. The result won't be quite as good as a properly baked loaf, but it's perfectly edible. The real fix is baking to an internal temperature of 207–210°F the first time.
How to tell it's underbaked
- The crumb is gummy, dense, or wet, especially in the center.
- The loaf feels heavy for its size.
- The walls cave in as it cools.
- Internal temperature is below 205°F.
How to re-bake a whole loaf
- Preheat the oven to 350°F.
- Place the loaf directly on a rack (no Dutch oven needed).
- Bake 10–20 minutes until the internal temperature reaches 207–210°F.
- Cool fully — at least 90 minutes — before cutting. The crumb sets during cooling.
This works best if you catch it soon after the first bake. A loaf that's already been cut and cooled can still be re-baked but may dry out.
How to rescue an already-sliced loaf
Toast the slices. Toasting drives off the excess moisture and firms up the gummy crumb. Underbaked sourdough makes great toast, croutons, or bread pudding.
Nail it next time
| Tool/Method | Target |
|---|---|
| Instant-read thermometer | 207–210°F internal |
| Crust color | Deep mahogany |
| Bake time | Don't pull early chasing schedule |
| Tap test | Hollow sound on the bottom |
The single best upgrade is an instant-read thermometer. Crust color and tapping are unreliable; internal temperature is definitive.
Frequently asked questions
Why was my bread dark but still raw inside?
Oven too hot, or pulled too early. Lower the temperature and bake longer so heat reaches the center without burning the crust.
Is underbaked sourdough safe to eat?
The gummy texture is unpleasant but not dangerous. Re-baking or toasting fixes it.
Does cutting too early make it seem underbaked?
Yes — a hot loaf has a gummy, unset crumb that firms up as it cools. Always cool fully before judging doneness.
Doneness is one of the easiest things to get right with the correct target. SourdoughAI recommends bake times and a finish temperature so you stop guessing.