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LeanVeganintermediate

Country SourdoughRecipe

Natural-leaven boule with deep flavor.

sourdoughbulk fermentcold proofscored

Last updated

About this ratio

Country sourdough is the loaf that got a generation of home bakers obsessed: a round boule with a blistered mahogany crust, a dramatic ear where the blade opened it, and an open, custardy crumb full of irregular holes. It is raised entirely by a sourdough — no commercial yeast — which is where the tang, the keeping quality, and the faint nuttiness come from. This is a weekend project rather than a weeknight one, but nearly all of that time is the dough working on its own.

The ratio is the classic Tartine baseline: 100% bread flour, 75% water, 2% salt, 20% starter. That 75% hydration is doing the most work — wet enough for the open crumb people chase, but slack and sticky enough that it is the main reason this loaf is intermediate rather than beginner. The 20% starter is a moderate inoculation: enough to raise the loaf overnight without souring it into sharpness. I keep the default at straight bread flour because it is the simplest thing that works; for more flavor and a livelier ferment, swap 10–20% of the flour for whole wheat in the Advanced panel, the way many well-known versions do.

Two things make or break it. The first is reading the bulk ferment by rise and feel, not the clock — a 78°F kitchen and a 68°F kitchen are hours apart, and underproofed sourdough bakes dense while overproofed sourdough spreads flat. The second is the overnight : it deepens the sour flavor, firms the dough so you can score it cleanly, and gives you that sharp ear. A Dutch oven to trap steam for the first half of the bake does the rest.

This recipe assumes you already keep an active starter. If you do not, the sourdough-starter-from-scratch guide walks through building one from flour and water over about a week. Every number here is cross-referenced against the standard modern sourdough references, with the conservative midpoint as the default and the wider ranges exposed in the calculator.

At a glance

At its default setting, this Country Sourdough recipe makes one loaf of about 900g — about 900g of dough in total. In baker's percentage that breaks down to 457g Bread flour (100%), 343g Water (75%), 9.1g Salt (2%), and 91g Sourdough starter (100% hydration) (20%). Change the loaves or enter a target dough weight in the calculator and every amount rescales to match, in grams or ounces.

Recommended hydration

7080%

Make

1loaf

Display unit

Total dough

900g

  • 457gBread flour100% baker's
  • 343gWater75% baker's
  • 9.1gSalt2% baker's
  • 91gSourdough starter (100% hydration)20% baker's

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Step-by-step method

How to bake this Country Sourdough

Showing variant: Overnight cold retard (classic Tartine)

The classic country sourdough rhythm: build a the night before, mix and bulk during the day, shape in the evening, retard cold overnight, bake straight from the fridge the next morning. The is what gives sourdough its deep tang and dramatic ear.

About 30 hours total. Build the levain, bulk all day, cold-retard overnight, bake from cold.

01

Levain

8–12 hours (plus 8–12 hr starter refresh beforehand)room temperature (~75°F / 24°C)
  1. 1.First: feed your starter 8 to 12 hours before you build the levain, so it's lively and bubbly when you need it. If you keep your starter in the fridge, pull it out and feed it the night before — a cold or sluggish starter is the most common reason home sourdough doesn't rise. New to sourdough or don't have a starter yet? Read the starter-from-scratch guide linked below — it walks the 7-day process to build one from flour and water.
  2. 2.To feed: in a clean jar, mix 10g of your existing starter with 50g flour and 50g water. (Roughly equal parts flour and water by weight, plus a small spoonful of the old starter — the ratio is 1 part starter to 5 parts flour to 5 parts water if you want the formal recipe-speak.) Stir until smooth, cover loosely, and leave on the counter.
  3. 3.You'll know the starter is ready when it has roughly doubled in volume, looks domed on top, smells lightly tangy and yeasty, and is full of small bubbles. Drop a teaspoonful in a cup of water — if it floats, you're good to go. If it sinks, give it another hour or two and check again.
  4. 4.Now build the levain itself. The night before mix day, combine 30g of your peaked starter, 75g bread flour, and 75g water in a jar. Mix until smooth, mark the level on the jar with a rubber band so you can see it grow, and leave covered loosely on the counter.
  5. 5.The levain is ready in the morning when it has roughly doubled, looks domed and bubbly, and passes the same float test — drop a small spoonful in water; if it floats, it's strong enough to leaven the bread. If your kitchen is cold, this can take longer; build it earlier next time or move the jar somewhere warmer.

The float test is a useful green light, not the rule. A levain can be ready without floating perfectly, but if it floats AND looks bubbly AND smells lively, you can move on with confidence.

02

Autolyse

1 hour78°F / 25.5°C
  1. 1.In the morning, combine the flour blend and most of the water (hold back about 50g) in a bowl.
  2. 2.Mix until no dry flour remains. Cover and rest. This period builds gluten passively and softens the bran.
03

Mix

15 minutes78°F / 25.5°C
  1. 1.Add the levain and salt (mixed into the reserved water) to the autolysed dough.
  2. 2.Mix with a wet hand by pinching through and folding until everything is fully combined and the dough holds together. About 5 minutes.
  3. 3.The dough will be soft and slightly sticky.
04

Bulk fermentation

4–5 hours78°F / 25.5°C
  1. 1.Do a set of every 30 minutes for the first 2 hours. Four sets total.
  2. 2.Switch to coil folds (lift the middle, let the dough drape, rotate) for the next 1–2 sets if the dough is getting strong.
  3. 3.Let the dough rest until it has risen by 50–75%, feels airy, and shows visible bubbles on the surface and sides.

Sourdough timing varies wildly with temperature. A 78°F dough finishes bulk faster than a 70°F one. Go by the dough, not the clock.

05

Shape

30 minutes (10 + 20 rest)room temperature
  1. 1.Turn the dough onto a lightly floured counter and divide in two.
  2. 2. each piece into a loose round by tucking edges underneath. Let rest seam-side-down for 20 minutes.
  3. 3.Final shape: flip one round over, fold the sides in and roll up tightly to build surface tension. Place seam-side-up in a floured . Repeat for the second.
06

Cold retard

12–16 hours38°F / 3°C (refrigerator)
  1. 1.Cover the bannetons with a damp towel or place in a sealed plastic bag.
  2. 2.Refrigerate overnight. The cold slows fermentation to a crawl while flavor compounds develop.
07

Bake

50 minutes (20 covered + 30 uncovered)500°F → 450°F / 260°C → 232°C
  1. 1.Preheat a Dutch oven inside the oven at 500°F / 260°C for at least 45 minutes. Or use the COLD-START METHOD: place the cold dough in a cold Dutch oven, lid on, then turn the oven on to 500°F / 260°C. Cold-start (Forkish/King Arthur method) is safer — no risk of burning yourself on screaming-hot cast iron — and produces nearly identical results. Start covered timer when the oven hits temperature.
  2. 2.Tip one cold dough out onto parchment, dust off excess flour, and score with a sharp blade. Cut ~¼ inch (6 mm) deep at a 30–45° angle to lift a dramatic ear; for a decorative pattern (square, leaf), score perpendicular and shallower. controls the — too shallow and the dough bursts at the seams instead of opening at the cuts.
  3. 3.Lower the dough into the Dutch oven on its parchment, cover, and reduce heat to 475°F / 245°C. Bake covered 20 minutes.
  4. 4.Remove the lid, drop to 450°F / 232°C, and bake another 25–30 minutes until deep mahogany.
  5. 5.Cool on a rack at least 1 hour before slicing. Sourdough crumb is still setting straight out of the oven.

Frequently asked

Questions about this recipe.

  • How do I scale this Country Sourdough recipe to make more or fewer loaves?

    Use the calculator on this page. Adjust the output count or per-loaf weight; every ingredient amount updates automatically. You can also enter a total dough weight and the calculator works backwards. The Country Sourdough recipe is written in baker's percentages, so it scales proportionally without changing the bread's character.

More general questions about ratios, hydration, and the calculator on the FAQ page.