A practical guide to making sourdough bread at home, including building a starter from scratch, the basic baking process, and common mistakes to avoid.

Sourdough Bread for Beginners: The Practical Way to Start at Home

Making sourdough bread at home sounds like something reserved for people with ovens that cost more than their first car, people who measure ingredients to the gram, or people who have been baking for years.

It doesn't have to be that way.

You can make sourdough bread with flour, water, salt, and time. You don't need a kitchen scale, you don't need to wake up in the middle of the night, and you don't need to memorize a dozen techniques before you get your first loaf in the oven.

This guide will walk you through building a starter, understanding the timing, and baking your first loaf of sourdough bread with a method that works even if you're doing this for the first time.

What sourdough actually is

Sourdough bread is leavened with wild yeast and lactobacillus bacteria that live on flour grains and in the air around you. This living culture is called a starter.

When you mix flour and water and let it sit, these microorganisms start to grow. They eat the sugars in the flour and produce carbon dioxide, which makes the dough rise. They also produce acids that give sourdough its characteristic tangy flavor.

That's it. That's the science. It's not magic. It's biology.

Regular bread uses commercial yeast for leavening. That yeast is a single strain that's been selected for speed and reliability. Sourdough uses a wild mix of microorganisms that work more slowly but also produce more complex flavors and a more digestible loaf.

The difference matters for two reasons:

Taste: Sourdough has a deeper, more complex flavor than regular bread. This comes from the acids the bacteria produce during fermentation.

Digestibility: The longer fermentation and the presence of lactobacillus can make sourdough easier to digest for some people who struggle with regular bread.

But let me be clear: sourdough is not inherently healthier than regular bread. It's not a health food. It's just bread that's been fermented for a longer time with different microorganisms. If you're doing it for the flavor, the tradition, or the satisfaction of making something that used to cost a lot of money, that's reason enough.

What you actually need

Before you start, here's what you need. Some of this you probably have. Some of this you need to buy.

Essential items:

All-purpose flour (or bread flour if you want a chewier loaf)
Water (filtered if your tap water is heavily chlorinated)
A bowl (any size, just needs to hold your dough)
A container for the starter (a jar is fine)
Something to cover the dough (a bowl cover, plastic wrap, or a damp cloth)
Something to bake in (oven, dutch oven, baking stone, or even a cast iron skillet)
A sharp knife or razor blade (for scoring the dough before baking)
Parchment paper (makes removing the loaf from the pan much easier)

Optional but helpful:

Kitchen scale (makes measuring easier and more consistent, but you can estimate with cups)
Dough scraper (helps with shaping, but a knife or spatula works)
Banneton or proofing basket (helps keep the dough from sticking, but any bowl with a cloth works)
Dutch oven (creates steam in the oven, but you can use a roasting pan with water)

If you want the simplest possible setup, get these:

Flour
Water
A jar
A bowl
Something to cover
An oven

That's it. You can skip everything else and still make bread.

Building your starter

A sourdough starter is a mixture of flour and water that you feed regularly. It's a living culture that you keep alive indefinitely. If you take care of it, you can pass it down through generations.

Building a starter from scratch takes 5-7 days. You can also buy a starter online or get one from a friend who bakes. If you have a friend who makes sourdough, asking them for a bit of their starter is often the easiest path. But if you want to build it yourself, here's how.

Day 1: Mix flour and water

Take a clean jar. Add:

1/2 cup all-purpose flour
1/2 cup water (room temperature)

Mix them together until there are no dry pockets of flour. The mixture should be the consistency of thick pancake batter or peanut butter.

Cover the jar loosely (don't seal it tightly, you want air circulation). Leave it on the counter for 24 hours.

Day 2: Feed the starter

You should see some bubbles forming. The mixture might smell a bit off, like old gym socks or vinegar. That's normal. This is the bacteria starting to grow.

Discard about half of the starter (you can compost it, feed it to animals, or just throw it away). To the remaining starter, add:

1/2 cup flour
1/2 cup water

Mix well. Cover loosely. Leave it on the counter for 24 hours.

If you're using a kitchen scale (highly recommended), measure your starter, then add equal weights of flour and water. For example, if you have 100g of starter, add 100g of flour and 100g of water. This is the 1:1:1 ratio that professional bakers use.

Day 3: Continue feeding

You should see more bubbles now. The smell should be less unpleasant, more like fermenting fruit or yogurt.

Continue the same pattern: discard half, feed with equal parts flour and water, wait 24 hours.

Day 4: More activity

The starter should be more bubbly now. When you lift a spoon or your finger out of it, you should see small bubbles on the surface.

Continue the same pattern: discard half, feed with equal parts flour and water, wait 24 hours.

Day 5: Ready? Maybe.

By day 5, your starter should be noticeably active. It should have doubled in size a few hours after feeding. It should smell pleasant, like yogurt or slightly sour milk.

To test if it's ready:

Feed your starter
Wait 4-6 hours
Does it double in size?
Is it bubbly throughout?
Does it smell pleasant and active?

If yes, your starter is ready to use for baking.

If no, keep feeding it daily for another 1-2 days. Some starters take longer to develop than others. This is normal.

The feeding schedule

Once your starter is active and ready, you need to maintain it. The simplest schedule is:

Daily feeding: Feed once a day at roughly the same time. If you feed it in the morning, it will be ready to use in the evening for baking.

The ratio: The 1:1:1 ratio works well. For example, if you want to use 50g of starter for baking:

Remove 50g of starter from the jar (discard or use in other recipes)
Add 50g of flour
Add 50g of water
Mix well
Wait 4-6 hours until it peaks
Use half for your recipe
Keep the other half in the jar for future feedings

What happens if you forget to feed it? Your starter will eventually die if you don't feed it for days or weeks. But if you forget a day, just feed it again and let it recover. It's more resilient than it sounds.

Alternative: Cold storage. If you're not baking daily, you can keep your starter in the refrigerator and feed it once a week. When you want to use it, take it out, let it come to room temperature, and feed it 2-3 times before using.

The basic baking process

Now that you have an active starter, here's how to make your first loaf.

Ingredients for one loaf

200g active starter (peak 4-6 hours after feeding)
350g water (lukewarm)
500g flour (all-purpose or bread flour)
10g salt

This recipe makes one loaf. The ratios are roughly 40% water, 50% flour, 10% starter, 2% salt. You can adjust from here, but this is a good starting point.

Step 1: Mix the ingredients

In a large bowl, mix the water and starter until the starter is dispersed. Add the flour and mix until no dry pockets remain. The dough will be shaggy and sticky.

Cover the bowl and let it rest for 30 minutes. This is called autolyse. It lets the flour hydrate fully and the gluten begin to develop.

After 30 minutes, add the salt. The salt can slow down fermentation if added too early, so we wait. Mix the salt into the dough by squeezing and folding the dough with wet hands. This takes 2-3 minutes. The dough will become smoother and more cohesive.

Cover the bowl and let it rest.

Step 2: Bulk fermentation

The dough will sit for 3-4 hours while it ferments. During this time, do stretch and folds.

Stretch and fold technique:

Wet your hands to prevent sticking
Reach into the bowl and grab a section of dough
Stretch it upward and fold it over the center of the bowl
Rotate the bowl and repeat 3-4 times until you've gone around the entire bowl
Cover and wait until the next set

Do this every 30-45 minutes for the first 2-3 hours. You'll notice the dough becoming smoother, more elastic, and rising.

After the last set, cover the bowl and let the dough rest for the remainder of the bulk fermentation.

Step 3: Shape the loaf

The dough should be bubbly and risen. It should look alive.

Turn the dough out onto a lightly floured surface. With floured hands, gently shape it into a round or oval. Don't worry if it's not perfect. The goal is to create surface tension on the outside of the loaf.

Here's a simple shaping method for a round loaf:

Fold the edges of the dough toward the center, like folding a map
Flip the dough over so the smooth side is down
Use your hands to tuck the edges underneath, creating a tight ball
Flip again so the smooth side is up

If you're making a batard (oval loaf), shape it similarly but elongate it by rolling from the center toward the ends.

Place the shaped dough on a piece of parchment paper or in a floured banneton. Cover it and let it rest.

Step 4: Final proof

The dough needs to rise one more time before baking. This is called the final proof.

Room temperature proof: 2-4 hours at room temperature. The dough should look puffy and have increased in size by about 50%.

Refrigerated proof: You can also put the shaped dough in the refrigerator for 8-12 hours (overnight works well). This slows the fermentation and lets you bake fresh bread in the morning.

When you're ready to bake, the dough should pass the "poke test." Gently poke the dough with a finger. If it springs back quickly, it's not ready. If it springs back slowly and leaves a small indentation, it's ready. If the indentation stays, it's over-proofed and you need to reshape and start over.

Step 5: Score and bake

Preheat your oven to 450°F (230°C) for at least 30 minutes. You need the oven to be hot.

If you're using a dutch oven:

Put the empty dutch oven in the oven to preheat
Carefully remove the hot dutch oven
Flip the dough onto a piece of parchment paper
Use a sharp blade or razor to score the top of the dough (make a slash about 3 inches long)
Carefully place the dough in the hot dutch oven (on the parchment)
Cover with the lid
Bake for 20 minutes with the lid on
Remove the lid and bake for another 20-25 minutes until the crust is deep golden brown
Let cool completely before slicing

If you're using a baking stone or steel:

Preheat the stone or steel for at least 30 minutes
Score the dough and transfer it to the hot stone (using parchment or a peel)
Create steam by placing a pan of water in the bottom of the oven or using a spray bottle to mist the oven walls
Bake for 35-45 minutes until golden brown

If you're using a regular baking sheet:

Score the dough and transfer to parchment on the baking sheet
Bake on the middle rack for 35-45 minutes
The crust will be thinner and the loaf will spread more

Step 6: Cool

Let the bread cool completely before slicing. This is the hardest part. Hot bread is soft and gummy because the starches haven't set yet. Wait at least an hour, preferably two.

When you slice into properly cooled bread, you should hear a satisfying crackle as the crust contracts. The crumb (inside) should be tender and chewy, not gummy.

Common beginner mistakes

Impatience with the starter

Your starter takes time to develop. If you rush it or try to use it before it's active, your bread won't rise well. Watch for the signs: bubbles, doubling after feeding, pleasant smell.

Over-complicating the process

You don't need a kitchen scale, a banneton, a dough scraper, or special flour. You can estimate with cups. You can shape on the counter. You can bake in a regular baking sheet if that's what you have.

Using the wrong flour

All-purpose flour works fine. Bread flour makes a chewier, more elastic loaf. If you want to try different flours, start with bread flour because it's more forgiving.

Baking too soon

The final proof needs to be complete before baking. If you bake before the dough is ready, it won't have proper oven spring and the inside will be dense.

Not cooling before slicing

I know this is tempting. Don't do it. Wait. The bread will be gummy and unpleasant if you cut it hot.

Panicking when things go wrong

Your first loaf might be flat. It might be gummy inside. The crust might be pale. This is normal. Every baker makes mistakes. What matters is that you keep baking and learn from what goes wrong.

The practical bottom line

Sourdough bread takes time. You can't rush it. But the process is simpler than you might think.

You need:

An active starter (build it over 5-7 days)
Flour, water, salt
A bowl and something to cover it
An oven
Patience

Start simple. Use all-purpose flour. Make one loaf. Learn the timing. Bake a second loaf. Keep going.

Your first loaf won't be perfect. Your tenth might be better. But you'll be surprised how quickly the bread comes together once you have a rhythm.

The first time I made sourdough, I over-proofed the dough, under-baked it, and it was gummy inside. I ate it anyway. The next loaf was better. By loaf five, I had the rhythm. By loaf ten, I was baking regularly.

The only way to get good at sourdough is to bake bread.

— C. Steward 🥖