Read the crumb against the kind of loaf you made
A whole-grain sandwich loaf and a white country loaf can both be well made and have different crumb. Start with a comparable bake or the recipe’s example. Notice whether the slice feels heavier than expected and whether the tight spots cover the whole slice or cluster around large voids.
| What the slice shows | Check these notes | A useful next experiment |
|---|---|---|
| Uniform small cells and a heavy slice | Did the starter follow its usual rise after feeding? Was the flour blend or water different from the last bake? | If you changed flour, repeat with the recipe’s original flour. If the starter repeatedly fell short of its usual activity, check the feed routine before mixing another batch. |
| Tight base or thick dense bands around large tunnels | How much did the dough rise during bulk, and how did it feel when you shaped it? Was there a fold, seam or trapped dry flour where the gap appears? | If the dough was clearly tight at shaping and the starter performed normally, keep the formula and allow bulk to reach the recipe’s cues. |
| An even, compressed crumb after dough became weak | Did the dough lose strength during a long or unusually warm rise? How did it handle coming out of the basket? | Repeat the same formula and review the stage at which it lost strength. If the final proof was the one stage that ran long, adjust that stage first. |
Several causes can leave similar marks. One cavity along a seam could come from shaping. Multiple tunnels with a dense base can also occur when the dough needed more fermentation. A photo makes those features easier to compare with the notes. [2] [3] [4]
Check the starter, then the main dough
Starter. Look for a repeatable rise after feeds with the same flour, ratio and temperature. A jar that rose normally before mixing gives you a better starting point for investigating the dough. If the starter was barely active compared with its own history, keep the next recipe the same and establish a dependable feed before you test a longer bulk. [5] [1]
Bulk. Compare the actual dough temperature and rise with a bake you know. Look at the dough in the container and how it felt as you turned it out. A batch can develop more slowly than its predecessor despite the same time on the counter. Note whether the dough felt tight, light, or unusually weak at the point you chose to shape. [6] [7]
Shaping. If the dough looked expanded and aerated but the slice has a local cavity, note where the seam sat and how you folded the dough. Use the recipe’s shaping technique and keep bench flour away from surfaces you need to seal. A consistent shape lets you compare fermentation more fairly. [4]
Choose one variable for the next loaf
Imagine the same flour, feed ratio and recipe produced two loaves. The second dough was cooler, reached a lower marked rise and felt tighter at shaping. Its slice had large holes and thick, dense areas. For the next loaf, keep the formula and shaping method. Measure the dough temperature again and judge bulk at a later check if it still feels tight. Write down the actual rise and handling cue that made you shape.
If the dough instead expanded normally but you changed to a much higher proportion of whole grain, compare another loaf with the original flour blend. Keep the timing checks and shape comparable. In both cases, changing one thing gives you a result you can learn from.
Crispy Crust’s planned bake comparison would put two centre-slice photos alongside their starter feeds, dough temperatures and shaping notes. It would help you spot which stage changed when the crumb looks similar for different reasons.