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Bread, As It Has Always Been: Guided by Time, Temperature, and Care
—A foundation learned slowly, one loaf at a time
A loaf born from flour, water, and patience is timeless. Long before commercial yeast, bread rose through observation and instinct, guided by hands, seasons, and the quiet intelligence of fermentation, a craft as old as civilization itself. When the crust crackles from the oven and a warm, tangy aroma fills the kitchen, you are not simply baking bread; you are tending a living tradition.
This master sourdough bread is not a rigid formula. It is a foundation. A way to learn your dough, your flour, and your kitchen, so you can bake loaves that nourish both body and soul, again and again.
Before You Bake: How to Think Like a Baker
Sourdough rewards attention more than precision.
If you want to recreate a loaf you love, you must know exactly how you made it in your kitchen. Temperature, timing, hydration, and flour choice all matter and they change with the seasons.
Before you begin, feed your Zero-Waste Sourdough Starter the night before mixing. Salt should always be measured deliberately, 2% of flour weight, not only for flavor, but because salt strengthens gluten, guides fermentation, and brings balance to acidity.
Just after mixing, take your dough’s temperature. This single number is your best predictor of how fermentation will unfold. Whenever possible, aim to bulk ferment at cooler temperatures (74°F or below). Slower fermentation is more forgiving, more flavorful, and easier to read.
Above all: read your dough, not the clock.
Hydration: The Variable That Changes Everything
Hydration—the ratio of water to flour—is the most important concept to understand in sourdough baking.
There is no single “perfect” hydration. There is only what works best for your flour, your starter, and your environment. Use hydration as a guide, not a rule. The dough should feel cohesive and elastic, responsive, not soupy or stiff.
As a starting point:
- Low-protein or low-gluten flours, such as einkorn or rye, tend to thrive around 60% hydration
- Medium-protein heritage wheats are happiest near 70% hydration
- High-protein flours, including bread or all-purpose flour, can support 75 to 80% hydration
With practice, your hands will recognize what your dough needs long before a number tells you.
Flour Matters: Choosing What You Love
Not all wheat behaves the same. With heritage grains especially, protein quality matters more than protein quantity.
Some of my favorite flours for sourdough include:
Jovial Einkorn All-Purpose
Einkorn’s delicate gluten prefers lower hydration, around 55%, and in some kitchens, a higher starter percentage (30 to 45%) to support structure and timely fermentation.
Sunrise Mills Heritage Pizza Flour
Yes, heritage pizza flour makes exceptional sourdough. At 70% hydration, it produces a soft, light loaf with a delicate crumb. I often blend it 50/50 with heritage whole wheat for added depth and flavor.
Grain Brain Organic White Kamut
Naturally sweet, strong, and deeply nourishing, Kamut performs beautifully around 75% hydration.
This master recipe works best with medium- to high-protein flours, but with experience, you’ll learn how to adapt hydration, fermentation, and handling to bring out the best in any flour you love.
Stretch & Folds
Coil Folds
Shaping
Starter, Seasons, and Fermentation Rhythm
Sourdough is alive. And like all living things, it responds to its environment.
In cooler kitchens, fermentation slows. In warmer kitchens, it accelerates. Adjust your starter accordingly:
- In cool winter kitchens, 20% starter supports steady fermentation
- In warm summer kitchens, 10% starter helps prevent over-proofing and preserves structure
Higher starter percentages speed fermentation; lower percentages slow it down and build complexity. Let the season guide you.
Bulk Fermentation: Rise Over Time
Bulk fermentation is not a rest, it is the heart of sourdough.
The time required depends on dough temperature, starter activity, and flour choice. As a general reference, bulk fermentation often takes most of the day or extends overnight.
What matters most is rise, not time.
A properly fermented dough may show some of the following signs: a gentle jiggle, visible bubbles along the sides or surface, easy release from the bowl, and a tacky (not sticky) feel. Not all signs appear every time. Learn the language of your dough.
For those who enjoy a more technical approach, The Sourdough Journey offers a detailed fermentation model, but remember, your hands are always the final authority.
Cold Fermentation: Flavor, Digestibility, and Time
Cold fermentation slows yeast activity while allowing organic acids to develop. This improves flavor, texture, and digestibility.
As a general guide:
- Delicate, low-gluten flours benefit from shorter rests, around 8 hours
- Heritage wheats shine between 12 to 16 hours
- Strong bread flours tolerate up to 20 hours
Stronger flours welcome time; delicate flours benefit from restraint.
Approximate Measurements (If You Don’t Own a Scale)
For best results (and repeatability of a loaf you love), a digital kitchen scale is strongly recommended. The following measurements are approximate and intended as guidance only:
- 350 g water ≈ 1 1/2 cups + 1 tablespoon
- 100 g active starter ≈ just under 1/2 cup
- 500 g flour ≈ 4 cups, spooned and leveled
- 10 g fine salt ≈ 1 3/4 teaspoons
Volume measurements vary significantly by flour type and measuring method. Weighing ingredients yields the most consistent sourdough results.
If You Don’t Have a Dutch Oven
A Dutch oven creates ideal steam, but it isn’t required. A baking stone paired with a cast iron pan and sturdy sheet pan works beautifully.
If baking without one, prepare a cold oven:
- Place a cast iron pan on the lowest rack
- Place a baking stone on the rack above
- Leave a third rack at the highest position
- Preheat the oven to 450°F
When baking, transfer the loaf to the hot stone, carefully pour 1 to 2 cups hot water into the cast iron pan to create steam, and cover the loaf by placing a sturdy sheet pan on the uppermost rack during the first phase of baking. Finishing baking by removing the pan of water and the top sheet pan to get that crackly, golden crust.
Good bread is about understanding heat and moisture not equipment perfection.
When Things Don’t Go as Planned
If shaping fails and the dough won’t hold structure, all is not lost.
Transfer the dough to a loaf pan, brush the top lightly with cream, and bake at 425°F for 15 minutes, then 375°F for 30 minutes. The result will still be deeply nourishing and delicious.
Nutrition Highlights for Authentic Sourdough
Long fermentation naturally breaks down gluten and phytic acid, improving mineral absorption and digestibility. Naturally leavened bread supports microbial diversity and provides sustained energy through slow-burning carbohydrates, protein, and minerals.
How We Eat Sourdough Bread
This bread is meant to anchor simple meals. Thick slices alongside a pot of soup. Warm bread torn and dipped into cultured butter. A quiet supper built from essential foundations, pantry staples, and time.
Master Sourdough Bread
Equipment
- Large bowl with lid or large pot with lid
- Banneton basket or use bowl lined with floured cotton towel
Ingredients
Approximate mixed dough volume: 850 ml
- 500 g Heritage wheat bread flour [100%] or heritage pizza 00 flour preferred
- 350 g filtered water, room temperature [70%] adjust hydration based on flour type
- 100 g active sourdough starter [20%] adjust based on season or flour strength
- 10 g fine mineral salt [2%]
Instructions
- Mix DoughIn a large bowl or pot, stir together the water and starter until dissolved. Add the flour and salt. Mix by hand until no dry bits remain, about 2 minutes. Cover and rest 30 minutes.
- Stretch & FoldWith a wet hand, gently release the dough from the side of the bowl, stretch upward without tearing, and fold over itself. Rotate the bowl a quarter turn and repeat until you’ve completed 4 folds. Cover and rest 30 minutes. Repeat one more round, then rest 30 minutes.
- Coil Folds With wet hands, scoop under each side of the dough and lift so the ends fold underneath into a coil. Rotate the bowl and repeat 3 to 4 times. Cover and rest 30 minutes. Repeat one more round. The dough should now appear more rounded with a smoother surface.
- Bulk FermentationCover and allow the dough rest for several hours. Check after the first hour; if the dough has flattened significantly, perform a few gentle coil folds to help it hold shape. Bulk fermentation typically takes 8 to 14 hours, depending on dough temperature, starter activity, and flour type. For reference, a dough temperature of 72℉ typically takes around 10 hours. Ultimately, fermentation is guided by rise rather than time—read your dough, not the clock. A properly fermented dough may show some of the following signs: a gentle jiggle, visible bubbles along sides or surface, easy release from the bowl, and a tacky (not sticky) feel.
- Shape DoughTurn the dough out onto an unfloured or very lightly floured surface. Gently stretch into a loose rectangle, about 8 x 10 inches and 1/2 to 3/4 inch thick. Fold the right side over center, then fold the left side over the top, as if folding a letter. Starting at the edge farthest from you, roll the dough toward you, keeping gentle tension, until a log forms.To tighten and round the loaf, tuck the ends underneath. Using your hands or a bench scraper, gently push the dough away from you, then rotate and pull it back toward you in a curved, scooping motion. Repeat this motion a few times. Each pull should lightly stretch the surface, building tension without tearing, until a smooth, taut shape forms.
- Cold FermentationGenerously flour a banneton or towel-lined bowl. Lightly flour the dough, flip seam-side up, and place into the basket.Dust the surface, cover and rest 30 minutes. Refrigerate 8 to 20 hours, depending on dough strength and desired flavor.
- Preheat OvenPlace the Dutch oven on the middle rack of a cold oven and preheat to 450°F.
- Score DoughOnce the oven is fully preheated, remove the dough from the refrigerator and flip it onto parchment paper, seam-side down. Using a bread lame or sharp knife held nearly horizontal, score the dough about 1/2 inch deep, slightly off center from top to bottom. Feel free to add a few light, decorative cuts.
- Bake with SteamTransfer the parchment and dough into the hot Dutch oven. Cover and bake 30 minutes.
- Finish BakeRemove lid and bake 15 to 20 minutes, until the crust is deep golden brown.
- CoolTransfer the loaf to a wire rack. Cool at least 1 hour before slicing. Cool completely (about 3 hours) before wrapping and storing.
- Storage Store at room temperature up to 5 days, wrapped in a linen bread bag or beeswax wrap.For longer storage, wrap the loaf in parchment paper, then place it inside a freezer-safe bag or airtight container before freezing. Thaw overnight at room temperature while still wrapped to prevent condensation. Re-crisp in a 350°F oven for 10 to 15 minutes.Optional: Slice before freezing, place parchment between slices, and freeze in a sealed bag. Toast directly from frozen for the best texture.
Notes
- Feed your sourdough starter the night before mixing dough.
- Always use 2% salt, based on flour weight.
- Bulk ferment cooler (74°F or below) for more forgiving structure and better flavor.
- Read your dough, not the clock.
Take notes. The loaf you love can only be recreated if you know how you made it in your kitchen.
RBK Ingredient Standard
Whenever possible, we prioritize organic, local, seasonal, and transparently sourced ingredients. Learn more about our sourcing approach.
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