How to Make Your Own Sourdough Bread at Home (And Actually Succeed)

There is something deeply satisfying about pulling a golden, crackling loaf of sourdough out of your oven. The crust shatters when you tap it. The inside is soft and open, with that faint tang that no store-bought bread can replicate. And the best part? You made it yourself, from nothing more than flour, water, salt, and a living culture you cultivated on your kitchen counter.

Sourdough has had a major resurgence over the past several years, and for good reason. People are rediscovering the pleasure of slow food — bread that takes time, that rewards patience, and that connects you to a tradition stretching back thousands of years. But if you’ve tried to make sourdough before and ended up with a dense, flat disc or a loaf that tasted more like plain white bread than anything fermented, you know how frustrating this process can be.

This guide is going to walk you through everything: building a starter from scratch, understanding fermentation, shaping your dough, and baking a loaf that will genuinely impress anyone who tastes it. No prior baking experience required.

What Makes Sourdough Different from Regular Bread

Before you get your hands floury, it helps to understand what sourdough actually is and why it behaves the way it does.

Regular commercial bread is made with packaged yeast — a single, powerful strain of Saccharomyces cerevisiae that was bred to work fast and predictably. You add it to your dough, wait an hour or two, and bake. It’s efficient, consistent, and forgiving.

Sourdough is none of those things, and that’s what makes it special.

A sourdough starter is a fermented mixture of flour and water that contains wild yeasts and lactic acid bacteria. These organisms work together. The wild yeast produces carbon dioxide, which makes your dough rise. The bacteria produce lactic and acetic acids, which give the bread its characteristic tang and also extend its shelf life naturally. The ratio of these two types of acids — influenced by hydration, temperature, and fermentation time — determines whether your bread tastes mildly sour or punishingly sharp.

Because wild yeast strains are less aggressive than commercial yeast, sourdough fermentation is slow. This slow fermentation is actually a feature, not a bug. It allows enzymes to break down complex starches and proteins in the flour, making the bread easier to digest. Many people who find commercial bread bloating or uncomfortable report no such issues with properly made sourdough.

The long fermentation also develops flavor compounds that simply don’t have time to form in a two-hour commercial loaf. This is why sourdough tastes the way it does — layered, complex, alive.

Building Your Sourdough Starter

Your starter is the foundation of everything. Without a healthy, active starter, nothing else in this process will work. The good news is that building one from scratch is genuinely simple, even if it takes about a week.

All you need is whole wheat or rye flour (for the first feeding — these carry more wild yeast than white flour), unbleached all-purpose flour, and non-chlorinated water. Tap water with chlorine can inhibit fermentation, so if your tap water is heavily treated, let it sit uncovered for an hour or use filtered water.

Day 1: Mix 50 grams of whole wheat or rye flour with 50 grams of room-temperature water in a clean jar. Stir vigorously to incorporate air. Cover loosely (not airtight — the culture needs to breathe) and leave it at room temperature, ideally between 70 and 75°F (21–24°C).

Days 2 through 7: Each day, discard about half of your starter (this prevents it from becoming unmanageably large and keeps the acidity from building up too fast) and feed it with 50 grams of all-purpose flour and 50 grams of water. Stir well, cover loosely, and leave it for 24 hours.

By day 3 or 4 you should start seeing bubbles. By day 5 or 6, the starter should be doubling in size within 4 to 8 hours of feeding and developing a pleasantly sour, yeasty smell. If it smells more like nail polish remover or vomit, don’t panic — this is just the natural balance of bacteria shifting. Keep feeding it and the smell will mellow out.

How do you know it’s ready to bake with? The classic test is the float test: drop a small spoonful of starter into a glass of water. If it floats, the yeast is producing enough gas and your starter is active and ready. The more reliable indicator is timing: use your starter when it has roughly doubled in size and is at peak activity, which you’ll learn to identify by watching it for a few days.

Once your starter is established, you can maintain it indefinitely. Keep it in the fridge if you bake once a week or less, feeding it once a week. Take it out the night before you want to bake, give it a feeding, and let it come back to room temperature and peak activity before using it.

Understanding Hydration

You’ll see sourdough recipes talk about “hydration,” which is simply the ratio of water to flour in your dough, expressed as a percentage. A 75% hydration dough contains 75 grams of water for every 100 grams of flour.

Higher hydration doughs tend to produce breads with more open, irregular crumb structures — those large, dramatic holes you see in artisan bakery loaves. They also tend to be stickier and harder to handle. Lower hydration doughs (around 65–70%) are easier to shape and more forgiving, though the crumb will be tighter and denser.

For your first loaf, a 70–75% hydration is a good target. It’s manageable enough to shape without frustration but wet enough to produce a nice open crumb.

The Basic Sourdough Recipe

This recipe makes one medium loaf, about 900 grams before baking.

Ingredients:

450 grams of bread flour (higher protein content than all-purpose flour gives you better structure and a chewier crumb), 325 grams of room-temperature water, 90 grams of active sourdough starter at peak activity, and 9 grams of fine sea salt.

The Process:

Start the night before you want to bake. In a large bowl, combine 90 grams of your active starter with 300 grams of the water (hold back 25 grams). Stir until the starter has dissolved. Add all 450 grams of bread flour and mix until no dry flour remains. This shaggy, rough mixture is called the autolyse. Cover the bowl and let it rest for 30 to 60 minutes. During this rest, the flour absorbs the water and gluten begins to develop passively — this will make your dough significantly easier to work with.

After the autolyse, dissolve the salt in the remaining 25 grams of water and pour it over the dough. Work it in thoroughly by squeezing and folding the dough until the salt water is fully incorporated. This takes about two to three minutes of hands-on work.

Now begins the bulk fermentation phase, which will take between 4 and 6 hours at room temperature (longer if your kitchen is cool, shorter if it’s warm). During this time, instead of kneading, you’ll perform a series of stretch-and-fold sets. Every 30 minutes for the first two hours, wet your hands (to prevent sticking), grab one side of the dough, stretch it upward as far as it will go without tearing, and fold it over the center of the dough. Rotate the bowl 90 degrees and repeat. Do this four times around the bowl — that’s one set. You should do four sets of stretch-and-folds over the first two hours, then leave the dough alone for the remaining fermentation time.

By the end of bulk fermentation, the dough should have grown by 50 to 75 percent in volume, feel airy and jiggly when you shake the bowl, and show bubbles on the surface and sides. Don’t rely solely on time — rely on these visual and tactile cues.

Shaping and the Cold Proof

Once bulk fermentation is complete, gently turn the dough out onto an unfloured work surface. Using a bench scraper or your hands, shape it into a rough round by folding the edges toward the center, then flipping it seam-side down. Let it rest uncovered on the counter for 20 to 30 minutes (this is called the bench rest) to allow the gluten to relax slightly.

After the bench rest, do your final shaping. For a round loaf (called a boule), dust the top of the dough lightly with flour, flip it over so the floured side is down, then pull the far edge toward you and fold it over the center, then do the same with the left and right edges, and finally roll the whole thing toward you. Flip it seam-side down, cup your hands around it, and drag it toward you on the work surface to build surface tension. You want the top of the loaf to be taut.

Transfer the shaped loaf to a well-floured proofing basket (called a banneton) or a bowl lined with a well-floured cloth, seam-side up. Cover it and place it in the refrigerator overnight, or for 8 to 16 hours. This cold proofing retards fermentation, allowing flavor to develop further. It also firms up the dough, making it much easier to score and helping it hold its shape during baking.

Baking Your Sourdough Loaf

This is the part that transforms your dough into bread, and the method matters enormously.

Professional bakers use steam-injected ovens, which keep the crust moist during the first phase of baking so the loaf can expand fully before the crust sets. At home, the best way to replicate this is to bake your bread inside a Dutch oven (a heavy, lidded cast iron or ceramic pot). The dough releases steam as it bakes, and the lid traps it, creating that professional steamy environment.

At least 45 minutes before you want to bake, place your Dutch oven (with the lid on) inside your oven and preheat everything together to 500°F (260°C), or as high as your oven reliably goes. The vessel needs to be fully, deeply preheated.

When you’re ready to bake, take the dough directly from the refrigerator — do not let it come to room temperature first. Cold dough is easier to score and often rises better in the oven. Cut a piece of parchment paper roughly the size of your Dutch oven’s base. Turn the dough out of the banneton onto the parchment so it’s seam-side down.

Using a lame (a razor blade scoring tool) or a sharp serrated knife, score the top of the dough with one or two swift, decisive cuts at a 45-degree angle to the surface. This controls where the dough expands in the oven. A single curved slash about two-thirds of the way across the loaf is a classic starting score.

Carefully lower the dough into the screaming-hot Dutch oven using the parchment as a sling. Put the lid on and place it back in the oven. Bake covered for 20 minutes. Then remove the lid, reduce the temperature to 450°F (230°C), and bake for another 20 to 25 minutes until the crust is deep golden brown — don’t be afraid of color here. A pale loaf is an undercooked loaf.

Let the loaf cool on a wire rack for at least one hour before cutting into it. This is genuinely important and not just a technicality. The inside of the bread is still cooking as it cools, and cutting it too early will result in a gummy, underdeveloped crumb.

Troubleshooting Common Problems

Even experienced bakers encounter failures. Here’s what most commonly goes wrong and how to fix it.

If your bread is too dense and didn’t rise well, the most likely culprit is an underactive starter. Make sure you’re using it at peak activity, right when it has doubled and before it starts to collapse. Another possibility is under-fermented dough — your kitchen may have been too cool and the dough needed more time in bulk fermentation.

If your bread spreads out flat instead of holding its shape, the dough was likely over-fermented or over-proofed. Fermentation that goes too far weakens the gluten structure and leaves the dough unable to hold gas. Try reducing your bulk fermentation time by 30 to 60 minutes next time, or move the dough to a cooler spot during the proof.

If the crumb is gummy or wet even after the loaf looks fully baked, either the loaf needs more time in the oven or you cut into it before it finished cooling. Try baking 5 to 10 minutes longer next time and have more patience at the cooling stage.

If the crust is too pale or soft, your oven isn’t hot enough, or the Dutch oven wasn’t preheated long enough. Give yourself a full 45 to 60 minutes of preheating next time.

Flour Makes More Difference Than You Think

Once you have the basic process down, one of the most impactful variables you can experiment with is flour. Bread flour with a protein content of 12–13% gives you excellent structure and chew. Adding 10–20% whole wheat or spelt flour introduces more complex flavor and a slightly denser, more nutritious crumb. Rye flour, even in small amounts, accelerates fermentation and adds an earthy, deep note that’s especially good in cold-weather baking.

Stone-milled flours from heritage wheat varieties like Einkorn, Red Fife, or Sonora can produce breads with astonishing depth of flavor. They’re harder to work with because they contain less gluten, but the results are worth exploring once you’re comfortable with the fundamentals.

Why Sourdough Is Worth the Effort

There’s a reason people who get into sourdough tend to become slightly obsessive about it. Every loaf is a small experiment. Every batch teaches you something about fermentation, temperature, timing, or flour that you didn’t know before. The process slows you down in a way that most things in modern life don’t, and there’s something genuinely restorative about working with your hands on something that takes patience.

Beyond the meditative quality of the process, sourdough is simply better bread. Better for digestion, better for flavor, better for longevity on your counter. A well-made sourdough loaf will still be excellent three or four days after baking, unlike commercial bread that starts going stale within a day.

Start your starter this week. Feed it every day. Pay attention to it. By the weekend, you could be pulling your first real sourdough loaf out of the oven — and once you do, you’ll understand immediately why people don’t stop at one.