Every sourdough baker has a disaster loaf story. The one that came out flat as a pancake. The one that looked perfect until you sliced it open and found a gummy, wet stripe running through the middle. The one that could double as a doorstop. If you’ve been there, you’re not doing anything wrong — you’re just doing sourdough, which is equal parts science and stubborn dough that does what it wants.
Here’s a field guide to the most common baking disasters, why they happen, and how to bake your way back (plus a few things in the shop that make the next attempt easier).
The Gummy Crumb
You did everything right, or so it seemed, and then you cut into a beautiful-looking loaf to find a dense, wet band of dough near the bottom. This is the single most common sourdough complaint, and it’s rarely just one thing.
The usual suspects: overproofing (the gluten structure collapses and can’t hold air during the bake), too much water in the dough, an oven running cooler than you think, or pulling the loaf before the interior hits 205–210°F. But the sneakiest cause is impatience — cutting into the loaf before it’s fully cooled. Bread is still cooking as it cools; slice too early and you release trapped steam before the starch finishes setting, and that “done” loaf turns gummy on the cutting board. Give it at least an hour, ideally two, before the knife comes out.
The Flat Loaf
Overproofed dough is the classic culprit here. Gently poke it — if the dent stays put or fills back in slowly, if it feels slack and spreads out instead of holding its shape, it’s gone too far. The good news: it’s often salvageable. Degas it gently, reshape with a light hand, and bake right away rather than trying to re-proof. If it’s too loose to hold a boule shape at all, let it become a focaccia instead of forcing it into a loaf pan — a graceful pivot beats a sad brick.
The Dense Brick
The opposite problem — underproofing — is actually the easier one to fix next time: just give the dough more time to rise before it goes in the oven. A loaf that goes in too early has gluten that’s still tight and undeveloped, which traps moisture and keeps the crumb from opening up. If the crust is nearly impossible to slice through, that’s usually the tell.
The Burnt Bottom
If the crust is scorched but the dough handling was fine, that’s not a fermentation problem — it’s a heat problem. Check your oven’s actual temperature (ovens run hot or cool more often than you’d think), move the rack up a notch, or bake in a Dutch oven to buffer direct heat.
Shop the Fixes
A few things from the shop make the next loaf a little more forgiving:
Easy Artisan Bread Made Simple ($17.53) — fuss-free, no-fail recipes for yeast and sourdough bread at home, written for exactly the moments above. A good troubleshooting companion, not just a recipe book.
Cinnamon Swirl Brew Bread Kit by Soberdough ($23.99) — pour, stir, bake. No starter to maintain, no proofing window to miss, no gummy-crumb guesswork. When you want a guaranteed win after a rough bake, this is the one.
Wrought Iron Bread Tray ($16.88–$30.34) — give your loaf a proper place to cool completely before you cut in. A small habit change, but it’s the fix for the single most common cause of gummy bread.
Every baker who’s any good at this has a shelf of disaster loaves behind them. Keep going — the next one’s closer than you think.
Sources: Living Bread Baker, The Pantry Mama, Sourdough Talk, Tasting Table
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