Reference
Sourdough baking schedule & timeline
Sourdough is mostly waiting, not working — about an hour of hands-on time spread across a day. The timing isn’t a recipe; it’s three dials — temperature, how much starter, and hydration. Here’s the whole day, stage by stage, and what makes each step faster or slower.
The short answer: About an hour of hands-on work across roughly 24–36 hours total: feed the starter (4–8 h to peak), mix, bulk ferment 3–6 h, shape, then cold-proof overnight (12–18 h) and bake. Want it faster? Skip the cold proof for an 8–12 h same-day loaf. Temperature is the dial that moves everything.
The timeline, stage by stage
Typical timings at a ~76°F / 24°C room. In order from feed to bake.
Sourdough stages in order, with typical duration and what each depends on.| Stage | Typical time | What it depends on |
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| Feed the starter → peak | 4–8 h | Warm + a small feed (1:2:2) peaks fast; cool + a big feed (1:5:5) is slow. Use it at the top of its rise, not after it falls. |
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| Autolyse (flour + water rest) | 0.5–1 h | Optional but helpful. Longer for whole-grain and high-protein flours; skip-able for a quick bake. |
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| Mix in starter + salt | 10–15 min | Just the working time — the clock really starts when bulk begins. |
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| Bulk fermentation | 3–6 h | The master stage. ~3.5–5 h at 76°F; every couple of degrees warmer shortens it noticeably, cooler lengthens it. More starter = faster. |
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| Stretch & folds | first 1.5–2 h of bulk | 3–4 sets, 30 min apart, during early bulk. Higher-hydration dough wants more, gentler folds. |
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| Pre-shape + bench rest | 20–30 min | Lets the gluten relax before the final shape. Slack, wet doughs rest a touch longer. |
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| Final shape | 10 min | Then straight into the banneton — seam up — for the proof. |
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| Proof — same day (warm) | 1–3 h | At room temperature, until the poke test springs back slowly. Fast but harder to time precisely. |
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| Proof — overnight (cold) | 12–18 h | In the fridge. Slower, far more forgiving on timing, and it deepens flavour — the home-baker default. |
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| Bake | 45–50 min | ~20 min covered (steam) + ~25 min uncovered to colour. Independent of the ferment schedule. |
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The three dials that move the schedule
- Temperature
The master dial. A warmer kitchen shortens bulk and proof; a cooler one stretches them. A few degrees changes the schedule more than anything else.
Bulk + proof time by temperature → - Starter %
More starter (a higher inoculation) ferments faster; less is slower but more flavourful. A small feed peaks quickly; a big feed takes longer.
Starter types & feeding → - Hydration
Wetter dough doesn't ferment much faster, but it handles differently — more folds, gentler shaping. It changes the work, less the clock.
Hydration calculator →
Two schedules that fit a normal day
Overnight cold proof (easiest)Morning: feed starter.
Early afternoon: mix, then bulk with folds.
Evening: shape, into the fridge.
Next morning: bake cold from the fridge.
Forgiving on timing and best for flavour — the home default.
Same day (faster)Early morning: feed starter (warm, small feed).
Late morning: mix, then bulk with folds.
Afternoon: shape, warm proof 1–3 h.
Evening: bake.
Bread in a day, but the proof window is tighter — watch the dough, not the clock.
These are generic process templates, not recipes — for a specific loaf’s formula and method, see the recipes (e.g. the country loaf).
Temperature decides the timing — so measure it
Every timing on this page assumes a ~76°F room. The fastest way to make your schedule predictable is to know your dough’s temperature and to hold a steady proofing environment, instead of guessing from the clock.
Read the dough temperatureAn instant-read thermometer turns “is it warm enough?” into a number — the difference between a 4-hour bulk and a 7-hour one.
Compare thermometers on Amazon → 🎧 Learn the rhythm of the bakeKen Forkish’s Flour Water Salt Yeast and Maurizio Leo’s The Perfect Loaf walk the whole schedule on Audible — a free trial gets you one to listen to while the dough proofs.
Start a free Audible trial → As an Amazon Associate, SourdoughHydration earns from qualifying purchases at no extra cost to you. More on how this is funded.
Common questions
How long does sourdough take from start to finish?
Active hands-on time is only about an hour, spread across the day — but the whole process runs roughly 24 to 36 hours once you include feeding the starter (4–8 h to peak), bulk fermentation (3–6 h), and an overnight cold proof (12–18 h). A same-day bake without the cold proof can finish in about 8–12 hours from feeding the starter.
Can I speed sourdough up or slow it down?
Yes — temperature is the main dial. A warmer kitchen (or proofing box) shortens bulk and proof; a cooler one stretches them out. You can also speed things up with more starter (a higher inoculation) and a smaller feed, or slow them down with the fridge. The overnight cold proof is the easiest way to fit baking around your day.
How long should sourdough cold proof in the fridge?
Typically 12–18 hours, and it tolerates a wide window — many bakers go anywhere from overnight to a full day. The cold slows fermentation almost to a stop, so timing becomes forgiving and the flavour gets tangier and more complex. Bake straight from the fridge; no need to bring it back to room temperature.
Why is my bulk fermentation taking so long?
Almost always temperature or starter strength. A cool kitchen (below ~70°F) can double the time; an underfed or sluggish starter slows everything down. Check your dough temperature, make sure the starter was used at its peak, and judge bulk by how the dough looks and feels — 30–50% risen, domed and jiggly — not by the clock.