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You have set up your aliquot jar, marked the starting level, and you are watching the dough rise. Now comes the question every baker hits at this exact moment: how high do I let it go before I shape? 25%? 50%? 75%? 100%? This guide gives you the definitive answer — and it is not a single number.
The target rise percentage is the most searched question after someone learns the aliquot method exists. Most guides answer it with “it depends” — which is accurate but useless. This post does the work of explaining exactly what it depends on and gives you a concrete number to start with based on your actual situation.
For the full aliquot method setup, see our step-by-step aliquot method guide. This post goes deep on the percentage decision specifically.
Why There Is No Universal Percentage
The percentage rise that produces a perfect loaf depends on three variables that interact with each other: dough temperature (the dominant factor), flour protein content, and the crumb and flavor profile you are chasing. Get the temperature-to-percentage relationship right and everything else becomes a refinement.
The Temperature-Based Rise Chart
Use your dough temperature — measured with a probe thermometer in the center of the dough, not the air temperature — to find your target rise percentage.
| Dough Temperature | Target Rise % | Why | Expected Bulk Time |
|---|---|---|---|
| 65°F (18°C) | 75–100% | Cold dough needs maximum bulk rise to compensate for slow pace | 8–12 hours |
| 68°F (20°C) | 75% | Still cool — needs generous bulk fermentation before shaping | 6–8 hours |
| 70°F (21°C) | 75% | 75% is the reliable sweet spot at this temperature | 5–7 hours |
| 72°F (22°C) | 60–75% | Moderate pace — standard home kitchen in mild weather | 4–6 hours |
| 75°F (24°C) | 50% | Active fermentation — 50% gives reliable results | 3–5 hours |
| 78°F (26°C) | 40–50% | Warm dough carries strong momentum — shape earlier | 2.5–4 hours |
| 80°F (27°C) | 30–40% | Fast fermentation — shaping too late causes slack dough | 2–3 hours |
| 82–84°F (28–29°C) | 25–30% | Very active — shape early, dough continues during cold proof | 1.5–2.5 hours |
Important: These percentages assume you will cold proof (refrigerate) the shaped dough after bulk fermentation. If baking directly without a cold proof, add 10–15% to these targets.
What Each Rise Percentage Produces
25–30%: Shape Early, Develop Later
Used at high dough temperatures (80°F+) where shaping later would mean over-fermented, unshapeable dough. The result is a tighter crumb, milder flavor, and excellent shaping behavior. The cold proof adds the tang and complexity that would otherwise come from a longer bulk.
50%: The Sweet Spot for Most Bakers
This is the most broadly recommended starting point for home bakers. At 50% rise with a dough temperature around 75°F, you get a well-developed loaf with good oven spring, a moderately open crumb, and a pleasant tang. Shaping is manageable — the dough has structure but is not slack. If you are new to the aliquot method, start here.
75%: More Flavor, More Open Crumb
At 75% rise, the lactic acid bacteria have had more time to produce acidity. The result is noticeably more complex flavor and a more open, irregular crumb. This is the target many artisan home bakers work toward once comfortable with shaping. The trade-off: the dough is softer and requires more confident, decisive shaping technique.
100%: Advanced Territory
A full doubling produces the most complex flavor and open crumb — but also the greatest risk. At 100% rise there is very little margin for error. The dough must be shaped quickly and moved to cold proof immediately. This target is appropriate for experienced bakers with high-protein flour and a well-calibrated environment. It is not a starting point.
How Flour Protein Changes the Target
| Flour Type | Protein % | Maximum Recommended Rise | Notes |
|---|---|---|---|
| High-protein bread flour | 13–14% | Up to 100% | Strong gluten handles extended fermentation well |
| Standard bread flour | 11–12% | 75% | Good range — start at 50% and work up |
| All-purpose flour | 10–11% | 50% | Weaker gluten — do not push past 50–60% |
| Whole wheat blend (20–30%) | Varies | 50% | Bran cuts gluten strands — ferments faster, weaker structure |
| High whole wheat or rye (50%+) | Lower effective gluten | 25–40% | Shape early — whole grain ferments significantly faster |
The Most Important Warning: Stop Waiting for the Dough to Double
Many beginner recipes instruct you to “wait until the dough doubles.” This guidance is based on a room temperature of roughly 65–68°F. At that temperature, a 100% rise (doubling) is approximately correct. But at warmer temperatures — a 75–78°F kitchen or a proofing box — waiting to double will almost always produce over-fermented, unshapeable dough.
At 78°F dough temperature, the correct target is 40–50% rise — well short of doubling. This is the most important insight the aliquot method unlocks: the correct rise target is not fixed, it is temperature-dependent. If you are using a Brod & Taylor Folding Proofer at 78°F and waiting for the dough to double, you are almost certainly over-fermenting every bake.
Your Starting Point: A Simple Decision Framework
- Measure your dough temperature with a probe thermometer after mixing.
- Find your temperature in the chart above and note the target rise %.
- If using standard bread flour and new to the aliquot method, start at the lower end of the range.
- Bake the loaf. If the crumb is tight and dense, push higher next time. If slack and flat, you went too far.
- After 3–4 bakes at the same temperature with the same flour, you will know your number. Write it down.
Frequently Asked Questions
What percentage rise is best for sourdough with the aliquot method?
It depends primarily on your dough temperature. At 75°F, 50% rise is the most reliable starting point. At 70°F, aim for 75%. At 80°F, shape at 30–40%. The key principle: warmer dough needs less bulk rise because it carries more fermentation momentum into the cold proof. See the full temperature chart above for every common dough temperature.
Should I wait for my sourdough to double?
Only if your dough temperature is around 65–68°F. At warmer temperatures, waiting for a full double (100% rise) will almost certainly produce over-fermented dough. At 78°F the correct target is 40–50% — well short of doubling. This is one of the most important and least understood principles in sourdough baking.
How do I calculate rise percentage from my jar?
The formula is: (Current height − Starting height) ÷ Starting height × 100. In practice, most bakers estimate visually. If the dough started at 1 inch and is now at 1.5 inches, that is a 50% rise. A rubber band at the starting point and a second rubber band at your target level makes this check immediate without any calculation.
What if I miss my target rise percentage?
If you overshoot by 10–15%, shape immediately and cold proof for the minimum time. If you have overshot significantly and the dough is already slack and spreading, shape into a loaf pan rather than a freestanding boule — the pan compensates for reduced structure.
See our full aliquot method beginner guide for setup instructions, and our bulk fermentation chart for the complete temperature-to-timing reference.
Related reading: Aliquot method vs. windowpane test · How dough temperature affects fermentation · Brod & Taylor temperature settings cheat sheet
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