Same-day sourdough bread
Same-day sourdough is a straight trade: you give up some of the flavor that a long, cool ferment builds, and you get bread out of the oven the same evening you started. Mix at 8 am and you are slicing by about 5 pm. The recipe leans on two levers to make that work, more starter and a warmer dough, and both of them shorten fermentation without cutting corners on gluten.
What makes it faster
Compared with the overnight loaf, this formula uses 20% starter instead of 15% and starts with warm water instead of cool. The result is a dough that sits around 26-27C (79-81F) instead of 18-21C (65-70F).
That is the whole trick. Bulk fermentation that takes 10-12 hours at 18C takes about 4 hours at 27C, because fermentation rate roughly doubles for every 8-10C of warmth. The fermentation calculator shows how far your own kitchen bends the curve.
The timeline
| Time | Stage |
|---|---|
| Night before | Feed the starter 1:5:5 so it peaks by morning |
| 8:00 am | Mix flour and water, autolyse |
| 8:45 am | Add starter and salt |
| 9:15 am to 11:15 am | Four sets of stretch and folds, 30 minutes apart |
| 12:30 pm | Bulk is done: 60% risen, domed, jiggly |
| 12:50 pm | Pre-shape, bench rest |
| 1:10 pm | Shape, into the banneton |
| 2:30 pm | Oven on with the Dutch oven inside |
| 3:15 pm | Bake |
| 4:00 pm | Out of the oven |
| 5:00 pm | Slice |
Shift the whole column to suit your day, or work backward from when you want bread out of the oven with the bake schedule planner.
Keeping the dough warm
The schedule only holds if the dough actually stays near 27C. In an average kitchen at 21C it will not, and bulk will run two hours longer than the table says. A few things that work:
- The oven with only the light on, door cracked. Check it with a thermometer first; some run hot.
- A cooler box with a jar of warm water beside the dough.
- A folded towel and a sunny spot, which is less precise but usually enough.
Take the dough temperature after mixing and again before you call bulk finished. Guessing the temperature is the single most common reason a same-day schedule slips.
Reading the dough, not the clock
Same-day loaves are easier to under-ferment than over-ferment, because you are working against a shorter window and the visual cues arrive fast. Bulk is done when the dough has grown by roughly 60%, domes rather than slumps, wobbles as a single mass when you shake the bowl, and shows bubbles at the sides and surface.
If in doubt, give it another 20 minutes. A slightly over-fermented same-day loaf is still good bread; an under-fermented one is dense and tight.
What you give up
Flavor. A same-day loaf is mild, wheaty, and faintly tangy rather than complex, because most sourdough character develops during the slow acid production of a long or cold ferment. If the loaf comes out blander than you like, retard the shaped dough in the fridge for 8-12 hours before baking and finish it the next morning. That costs you the same-day part but keeps everything else.
Bake to a deep crust and an internal temperature of 96-99C (205-210F). All timings here are estimates that depend on your dough temperature and starter strength: judge by how the dough looks and feels.