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Baking techniques

Sourdough Baking Schedules That Fit a Workday

Two sample sourdough timelines for people who work nine to five, using a slow levain, a long cold proof and dough temperature to move each step around.

Sourdough recipes often read as if the baker is home all day, checking dough every half hour. Most people are not. The good news is that sourdough is flexible: the temperature of the dough, the amount of starter and the refrigerator can all stretch or compress each stage so the hands-on steps land in the early morning and the evening.

This guide gives two timelines that work around a standard workday, explains the levers that let you shift them, and points out where each schedule can go wrong. Use the times as a starting point and adjust once you know how fast your starter and kitchen run.

Key points

  • Dough temperature controls fermentation speed more than the clock does; measure it after mixing.
  • A 1:5:5 levain feeding slows the starter so it peaks 10 to 12 hours later instead of 4 to 6.
  • A cold proof in the refrigerator can last 12 to 36 hours, which makes it the most flexible step.
  • Cutting the starter to 5 percent of the flour weight can stretch bulk fermentation across a workday in a cool kitchen.
  • Change one lever at a time and write down times and temperatures for each bake.

The levers that move a schedule

Every sourdough bake runs through the same stages: build the levain, mix, bulk ferment, shape, proof and bake. The stages cannot be skipped, but their length can be changed. Warmer dough ferments faster; cooler dough slows down. More starter speeds things up; less starter gives you more hours. And refrigeration nearly pauses fermentation, so whatever stage goes into the fridge becomes the stretch you can move to suit your day.

For most bakers, the easiest lever is the levain ratio. Feeding 1 part starter with 2 parts flour and 2 parts water peaks in about 4 to 6 hours at 24°C (75°F). Feeding 1 part starter with 5 parts each of flour and water takes 10 to 12 hours at a similar temperature, which turns an overnight or all-day absence into useful time.

  • Warmer dough: shorter bulk
  • Less starter in the dough: longer bulk
  • Lower levain ratio of starter to flour: slower levain
  • Refrigerator: pause the proof for 12 to 36 hours

Plan A: mix after work, bake the next evening

At 7 am, before leaving, feed 20 g starter with 100 g flour and 100 g water. In a kitchen around 21 to 23°C (70 to 73°F), it should be domed and bubbly by 6 pm. Mix the dough when you get home, aiming for a dough temperature of 24 to 25°C (75 to 77°F); use warmer water if your flour is cold.

Do three or four sets of folds 30 minutes apart during the evening, then leave the dough alone. With about 20 percent levain at that temperature, bulk usually ends around 10 or 11 pm. Shape, place in a floured banneton, cover and refrigerate. The next evening, preheat the oven with a Dutch oven inside to 250°C (480°F) for 45 minutes, bake straight from the fridge with the lid on for 20 minutes, then uncover, lower to 230°C (450°F) and bake 20 to 25 minutes more.

  • 7:00 am: feed levain 1:5:5
  • 6:00 pm: mix
  • 6:30 to 8:30 pm: folds
  • 10:00 to 11:00 pm: shape, refrigerate
  • 6:00 pm next day: preheat and bake

Plan B: mix before work, bake the next morning

Feed the levain at 1:5:5 around 10 pm so it peaks when you wake. At 6:30 am, mix a dough that uses only about 5 percent levain, for example 25 g for 500 g flour, with water cool enough to give a dough temperature near 21°C (70°F). Do one set of folds before leaving.

In a room at 20 to 22°C (68 to 72°F), bulk typically takes 9 to 11 hours, so the dough should be ready when you return in the early evening. Shape, refrigerate overnight and bake before work the following morning, or leave it in the fridge until that evening. This plan depends heavily on room temperature: above about 24°C (75°F), the dough will overferment before you get home.

Adjusting for your kitchen and starter

Starters differ in speed, and kitchens change with the seasons. Run a test on a day off: feed your starter at the ratio you plan to use and note when it peaks. Then mix a dough and record the dough temperature and the time bulk actually ended. Those two numbers let you predict future bakes much better than any recipe can.

In summer, use cold water and cut the levain amount. In winter, place the dough in an oven with the light on, checking that it stays below about 27°C (80°F), or in a cooler with a jar of warm water.

Handling the cold proof

A shaped loaf can sit in the fridge for 12 to 36 hours. The longer it stays, the more sour it becomes and the more the crust blisters. Past about 36 hours, many loaves start to lose structure and spread when turned out. If the dough looked underfermented at shaping, give it an hour at room temperature before refrigerating; if it looked overfermented, get it cold quickly and bake sooner.

Baking straight from the fridge is fine and makes scoring easier. Cold dough holds its shape on the peel and the blade glides through without dragging.

When things run early or late

If bulk finishes before you are ready to shape, refrigerate the whole container for an hour or two to slow it down, then shape. If bulk is lagging at bedtime, move the dough somewhere warmer and check again in 30 to 60 minutes rather than shaping an underfermented dough. A slightly late bedtime is better than a dense loaf.

Missed a fold? Skip it. Folds add strength, but a dough with two sets instead of four still makes good bread, especially at moderate hydration.

Common questions

Can I leave dough on the counter all day while I am at work?
Yes, if you reduce the starter and keep the dough cool. Around 5 percent levain and a dough temperature near 21°C (70°F) usually give a 9 to 11 hour bulk. In a warm kitchen, use the refrigerator instead so it does not overferment.
Is it better to cold proof the dough in bulk or after shaping?
Both work. Cold proofing after shaping is the most common approach and lets you bake straight from the fridge. Cold bulk fermentation means shaping cold dough later, then giving it a short warm proof, which adds a step on baking day.
How long should I let the bread cool before slicing?
At least 1 to 2 hours. The crumb is still setting as steam escapes, and cutting early can make the inside seem gummy even when the loaf is fully baked.
About this page

Written and reviewed by the BakedAI editorial team. Last reviewed . This is general educational guidance, not professional or medical advice.