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The Same Soft Loaf, Built on a Levain and an Overnight Cold Proof

Intermediate

Sourdough Multigrain SandwichBread

by Henry Hunter

Naturally leavened, seven grain, sandwich shaped

Fermentation

10 to 12 hours for the levain, 4 to 5 hours bulk, 12 to 16 hours cold

Bake Time

40 to 45 minutes

Yield

Two 9 by 5 inch loaves, about 16 slices each

Sourdough Multigrain Sandwich Bread - finished bread
  • Tested by Henry Hunter
  • Last updated July 30, 2026
  • Yields Two 9 by 5 inch loaves, about 16 slices each
  • 5 equipment items
Henry Hunter, professional baker and recipe author

Perfection is not required

"Perfection is not required. Progress is."
Henry Hunter

By Henry Hunter Jr., founder of Crust & Crumb Academy and Baking Great Bread at Home.

About Henry

Authentic Flavor

People ask me all the time whether the sourdough version of a loaf is worth the extra day. Here it genuinely is. The soaked grain and the long cold proof work on the same problem from two directions, and what you get back is a whole grain slice that still holds together on day three. Bake the yeasted one first if you're new to this. Then bake this one and taste them side by side. That comparison teaches more than either loaf on its own.

Equipment Needed

Ingredients

Scale Recipe:

The Levain (Day 1, Evening)

A small overnight build. Ready when it's domed, smells sweet and yeasty, and a spoonful floats.

The Soaker (Day 1, Evening)

Same soaker as the yeasted version. Two parts boiling water to one part cereal, built at the same time as the levain so you only dirty the kitchen once.

The Dough (Day 2, Morning)

The levain and soaker go in together with everything else.

The Top

Brushed on cold, straight out of the refrigerator, right before the loaves go in the oven.

Pro Tip

Feed your starter the morning of Day 1 so it's genuinely active when you build the levain that evening. A sluggish starter is the single most common reason a sourdough sandwich loaf comes out short and dense. If yours has been living in the back of the fridge, give it two feedings a day apart before you start.

Day 1, Evening

Build the Levain

A small , about 6% of the total flour as ripe starter. Small on purpose. A big inoculation moves fast and gives you sour without the sweetness this loaf wants.

Progress
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1

Mix

Stir the ripe starter, flour, and water together in a jar until smooth. Mark the level with a rubber band so you can see how far it climbs.

2

Ferment Overnight

Cover loosely and leave it at room temperature, ideally around 72F to 76F (22C to 24C), for 10 to 12 hours. It's ready when it's roughly doubled, domed on top, and webbed with bubbles underneath.

⏱ Wait Time

10 to 12 hours

Pro Tip

If your kitchen sits below 68F (20C) overnight, use water at 85F (29C) and put the jar somewhere warm, like inside the oven with just the light on. Cold levain is slow levain, and a levain that hasn't peaked will not carry a loaf this heavy with grain.

Day 1, Evening

Make the Soaker

Do this while the levain is getting mixed. The cereal needs the whole night to soften, and soaked grain is what keeps a whole grain loaf from drying out by the next afternoon.

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1

Scald the Cereal

Put the cereal and salt in a medium heatproof bowl. Pour the boiling water over it and stir well until there are no dry pockets at the bottom.

2

Cover and Hold Overnight

Cover and leave it on the counter next to the levain. By morning it's a thick, cool porridge that holds its shape on a spoon.

⏱ Wait Time

10 to 12 hours

Pro Tip

The salt in the soaker is not for flavor. Grain sitting wet and warm all night starts converting its own starch to sugar, and a sourdough dough is already acidic enough to loosen the crumb. Salt slows those enzymes and keeps the crumb from turning sticky.

The day-two crumble

You've had this loaf. It's good out of the oven and by the next afternoon a slice falls apart in your hand. That's not bad technique. That's bran. Baked bran keeps pulling moisture out of the crumb around it as the loaf cools and sits, which means the bread dries from the inside while the crust still looks fine.

Bran drinks more than you think

Wheat bran takes on 96% of its own weight in cool water and 168% in boiling water. Whole wheat flour is roughly 15% bran, so every 200g of whole wheat in a formula is carrying about 30g of the thirstiest material in your kitchen. If that bran doesn't get its water before the bake, it takes it from the crumb afterward.

Two ways to beat it

Give the bran time and water up front. A soaker handles the cracked grain. A long autolyse and an overnight cold proof handle the bran in the flour. That's why this loaf gets both, and it's why a slice holds together on day three instead of day one.

The Takeaway

Bran will get its water either before the bake or after. Before means soft bread. After means crumbs on your shirt.

Day 2, Late Morning

Mix the Dough

One mix, everything in. Sourdough gluten develops more slowly than a yeasted dough, and the grain adds shear, so this dough asks for a little patience up front and pays it back later.

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1

Check the Levain

Drop a teaspoon of levain into a glass of water. If it floats, you're on. If it sinks, give it another hour or two and check again. Don't push forward with a levain that isn't ready.

2

Combine Everything but the Butter

Put both flours, the milk, honey, salt, the whole levain, and the whole soaker in the mixer bowl. Mix on low for 2 to 3 minutes until there's no dry flour anywhere. It looks rough. Let it look rough.

3

Rest 30 Minutes

Cover and rest. This matters more in the sourdough version than the yeasted one, because you've got a long fermentation ahead and softened bran is what keeps the crumb from going crumbly on day two.

4

Add the Butter and Develop

Add the softened butter in pieces on low speed, then mix on medium-low for 8 to 10 minutes. The dough should clear the bowl sides and feel supple, tacky but not sticky. By hand, use for 10 minutes with two 5 minute rests worked in.

Pro Tip

Aim for a finished dough temperature of 78F (26C). Sourdough is far less forgiving about temperature than commercial yeast. Two degrees changes your bulk time by close to an hour, and with this much grain in the dough you won't be able to read the difference by eye.

Precise Timers

Use these interactive timers to track your stages.

Autolyse Rest

30:00

Knead

09:00

Day 2, Midday into Afternoon

Bulk Fermentation with Folds

Four to five hours at room temperature with three sets of folds in the first half. is where a naturally leavened loaf earns its flavor, and where most people either stop too early or wait too long.

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1

Transfer and Mark

Move the dough to a lightly oiled straight-sided container. Mark the starting level with tape or a rubber band. With this much grain in the dough, that mark is the only honest way to read the rise.

2

Three Sets of Folds

At 45, 90, and 135 minutes, give the dough a set of . Wet your hand, reach under one side, lift, and fold it over the center. Turn the bowl and repeat four times. Then leave it alone.

3

Rise Until Grown by Half

Total bulk is 4 to 5 hours at 76F to 78F (24C to 26C). You're looking for the dough to grow by about 50%, feel airy and domed, and show bubbles at the edges. Do not chase a doubling here. An enriched sourdough that doubles in bulk has nothing left for the pans.

⏱ Wait Time

4 to 5 hours

Pro Tip

A cool kitchen stretches this to 6 or 7 hours and that's fine. A warm kitchen at 82F (28C) can finish in 3½. Watch the mark on the container and the feel of the dough, and let the clock come second.

Precise Timers

Use these interactive timers to track your stages.

Fold 1

45:00

Fold 2

45:00

Fold 3

45:00

Finish Bulk

1:45:00

Day 2, Late Afternoon

Shape and Pan

Divide, roll tight, into the pans. Tight rolling is what buys you an even crumb instead of a big tunnel under the crust.

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1

Divide and Weigh

Turn the dough out onto a lightly floured counter and divide it into two equal pieces, about 950g each. Weigh them so both loaves rise to the same height.

2

Pre-shape and Rest

Round each piece loosely and let them sit uncovered for 15 minutes. This relaxes the dough so the final roll doesn't fight you.

3

Roll Tight

Pat each piece to a rectangle as long as your pan, then roll it up tightly from the short edge, pinching the seam as you go. Press out any large pockets you feel under your palms.

4

Pan and Cover

Seam side down in greased 9 by 5 pans, pressed gently into the corners. Cover well so the tops don't dry out overnight.

Pro Tip

Wet your hands instead of flouring the counter if the dough sticks. Extra flour on the outside of a roll turns into a gray seam inside the finished slice.

Shaping

Shaping Options

The pan is the reason this recipe works for sandwiches. That said, the dough is strong enough for a couple of other formats.

Two 9 by 5 Pan Loaves (Recommended)

Even slices and reliable geometry, which is the whole reason to make a sandwich loaf instead of a boule.

Recommended
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1

Divide

Two equal pieces, about 950g each.

2

Pre-shape

Round loosely, rest uncovered 15 minutes.

3

Roll and Pan

Roll tight from the short edge, seam side down in greased pans.

Two Lidded Pullman Loaves

Square slices, tighter crumb, and a flat top that stacks in a sandwich. Use 9 by 4 inch Pullman pans.

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1

Divide

Two pieces of about 950g each, which fills a 9 by 4 Pullman to roughly two thirds.

2

Proof to Two Thirds

Cold proof until the dough reaches about two thirds up the pan, then slide the lid on.

3

Bake Lidded

Bake lidded at 350F (175C) for 40 minutes, pull the lid, and give it 5 more minutes to set the top.

One Loaf and Eight Rolls

Bake one 950g loaf and eight rolls of about 120g. Good move when you want both in one bake.

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1

Divide

One 950g piece for a pan, then eight pieces of about 120g.

2

Shape

Roll the loaf as usual. Round the rolls tight on an unfloured spot so they grip and build tension.

3

Bake

Rolls bake from cold at 375F (190C) for 20 to 24 minutes to 200F (93C) internal.

Proof Test: Press the side of the cold loaf gently with a floured fingertip. The dent should fill back in slowly and not all the way. Cold dough always feels firmer than it is, so read the height above the rim first and use the poke as a second opinion.

Day 2 Night into Day 3

Overnight Cold Proof

Straight into the refrigerator. The does three things at once: it fits the bake into your morning, it deepens the flavor, and it firms the dough up so the loaves hold their shape going into the oven. If you mix around 10 in the morning, the loaves go into the fridge by late afternoon and you're baking before breakfast.

Progress
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1

Refrigerate

Cover the pans and refrigerate for 12 to 16 hours. The dough rises slowly and finishes somewhere near the rim of the pan. Up to 20 hours is fine if your morning gets away from you, and the flavor only gets better.

2

Read It in the Morning

You want the dough crowning about ½ inch above the rim. If it's still below the rim, leave the pans on the counter for 1 to 2 hours until it gets there. If it's well above the rim, bake right away straight from cold.

⏱ Wait Time

12 to 16 hours

Pro Tip

Refrigerator temperatures vary more than people think. A 34F (1C) fridge nearly stops the proof, so you'll need counter time in the morning. A 40F (4C) fridge keeps it moving and might finish overnight on its own. Learn yours once and you'll never guess again.

The bran keeps drinking

Whole grain bran absorbs water slowly and keeps absorbing it for many hours after mixing. Those extra ten or twelve cold hours let the bran finish the job it started. That's the difference between a slice that holds together on day two and one that crumbles into your lap.

Acid firms the structure

A slow cold ferment produces more acetic acid than a fast warm one. Mild acidity tightens the gluten network, which is exactly the help a dough carrying 150g of grain needs. Cold retarding a multigrain loaf gives you a taller, more stable loaf than a warm proof will.

Flavor gets time it can't get warm

The bacteria in your starter work at different rates than the yeast do. Cold slows the yeast down more than the bacteria, so flavor keeps developing while the rise nearly stops. That's the whole reason overnight retarding produces bread that tastes like more than yeast.

The Takeaway

Cold time isn't a delay. It's the step that makes a whole grain crumb hold together and taste like something.

Precise Timers

Use these interactive timers to track your stages.

Cold Proof

14:00:00

Day 3, Morning

Bake and Cool

From cold, a little longer than the yeasted version. The chilled center takes extra minutes to come up to temperature.

Bake Time: 40 to 45 minutesOven: 350°F / 175°CInternal Temp: 200-205°F / 93-96°C

Step by Step

1

Preheat and Top

Preheat to 350F (175C). While it heats, brush the cold loaf tops with milk and scatter the oats over them.

2

Bake

Bake on the lower-middle rack for 40 to 45 minutes, rotating front to back at 25 minutes. Tent with foil if the tops go dark before the 30 minute mark.

3

Check Internal Temperature

Pull at 200F to 205F (93C to 96C) in the center. Sourdough runs a few degrees higher than the yeasted version because the crumb is denser and holds moisture longer.

4

Cool Completely

Out of the pans immediately onto a wire rack. Cool a full 3 hours before slicing. Sourdough multigrain needs longer than a yeasted loaf, and cutting early gives you a gummy crumb that isn't the recipe's fault.

Bake

42:00

Cool

3:00:00

Butter the tops the second they leave the pans for a soft crust. Skip it for a firmer chew. Either way, get them out of the pans right away. Bread left sitting in a hot pan steams its own bottom crust soggy.

Baking Methods

Straight from the refrigerator to a hot oven. Easier handling, better oven spring, no second guessing.

Equipment: Two 9 by 5 inch loaf pans, lower-middle rack

1

Preheat

Preheat to 350F (175C) for at least 20 minutes while the pans stay cold.

2

Top and Load

Brush with milk, add oats, load both pans on the lower-middle rack.

3

Bake

40 to 45 minutes, rotating front to back at 25 minutes.

4

Verify and Turn Out

Pull at 200F to 205F (93C to 96C). Out of the pans immediately, cool 3 hours.

"Bake to temperature every single time. A sourdough grain loaf holds moisture better than any other bread in the Pantry, which means it hides an underbaked center better too."

Nutrition Facts

Per 1 slice (about 48g)32 servings per recipe

Calories140
Carbohydrates26g
Protein5g
Fat2g
Saturated Fat1g
Fiber2g
Sugar3g
Sodium210mg

* Values are estimates based on standard ingredients; actual values vary by brands and portion size.

Storage

Room Temperature

3 to 4 days in a sealed bread bag or a lidded box. Grain breads hold moisture better than plain white loaves because the soaked grain keeps giving water back to the crumb.

Refrigerated

Skip the fridge. Bread goes stale faster at refrigerator temperature than it does on the counter.

Frozen

Up to 3 months. Slice the whole loaf first, freeze in a bag with the air pressed out, then pull slices as you need them and toast straight from frozen.

Refresh

Sprinkle the loaf with water and warm it at 350F (175C) for 8 to 10 minutes. The crust crisps back up and the crumb softens.

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Troubleshooting

Baker's Notes

Common questions and solutions for perfect results

Join the Channel — Two ways to bake closer with me. The Starter $2.99/mo or The Apprentice Baker $9.99/mo at youtube.com/@henryhunterjr/join

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SourHouse Dough Bed and Goldie Starter Home — keep your dough and starter at the perfect temperature

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Sourdough Starter Guide — Simple, practical, proven. Build it. Feed it. Keep it alive. Your foundation for great bread.

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