Quick Answer

Stretch and folds are a gentle sourdough technique used to strengthen the dough during bulk fermentation. To perform one set, lift one side of the dough, stretch it upward without tearing it, and fold it over the center. Rotate the bowl and repeat this process on all four sides.

Most sourdough recipes use three to four sets of stretch and folds spaced about 20 to 30 minutes apart during the first part of bulk fermentation. The exact number depends on the dough’s hydration, flour strength and how quickly it develops structure.

What Are Stretch and Folds?

Stretch and folds are a dough-strengthening technique commonly used in sourdough breadmaking.

Instead of kneading the dough continuously, you gently stretch and fold it several times during the early stage of bulk fermentation. This strengthens the gluten network while allowing the dough to rest between each set.

As the dough becomes stronger, it is better able to trap the carbon dioxide created during fermentation. This helps support:

• Better dough structure
• Improved oven spring
• A lighter crumb
• Easier shaping
• More even fermentation
• A loaf that holds its shape

Stretch and folds are especially useful for wet or high-hydration doughs that may be difficult to knead in the traditional way.

Why Does Sourdough Need Stretch and Folds?

When flour and water are mixed, proteins in the flour begin forming gluten.

Gluten creates the elastic network that allows bread dough to stretch and hold gas. Without enough gluten development, sourdough may spread, tear or struggle to rise properly.

Stretch and folds help organize and strengthen that gluten network without removing too much gas from the dough.

Each set gradually transforms the dough from a rough, sticky mixture into something smoother, more elastic and easier to handle.

Are Stretch and Folds the Same as Kneading?

Stretch and folds and kneading serve a similar purpose: they both develop gluten.

The main difference is how the dough is handled.

Traditional kneading involves working the dough continuously for several minutes. Stretch and folds use shorter periods of gentle handling with rest time in between.

Those rest periods are important because they allow:

• Flour to continue absorbing water
• Gluten to relax and reorganize
• Fermentation to continue
• The dough to strengthen gradually

Sourdough does not always require traditional kneading. Many recipes rely entirely on stretch and folds and time to develop enough strength.

When Should You Start Stretch and Folds?

Stretch and folds are usually performed during the early part of bulk fermentation.

Bulk fermentation begins when the active starter is mixed into the dough. Depending on the recipe, you may begin the first set of folds immediately after mixing or after a short rest of approximately 20 to 60 minutes.

A common schedule might look like this:

• Mix the dough.
• Rest for 30 minutes.
• Perform the first set of stretch and folds.
• Rest for another 30 minutes.
• Repeat for three or four total sets.
• Allow the dough to continue bulk fermenting without further handling.

The exact timing can vary, but folds are generally most helpful before the dough becomes highly aerated and delicate.

How to Do a Stretch and Fold

You can perform stretch and folds directly in the mixing bowl or bulk fermentation container.

Step 1: Wet Your Hand

Lightly wet your hand with water before touching the dough.

This helps prevent sticking without adding extra flour, which could change the dough’s hydration.

You do not need to soak your hand. A small amount of water is usually enough.

Step 2: Lift One Side of the Dough

Reach under one edge of the dough and gently grasp it.

Lift the dough upward until you begin to feel resistance.

The goal is to stretch it without pulling so hard that it tears.

Step 3: Fold It Over the Center

Bring the stretched portion across the top of the dough and fold it toward the center.

Allow it to rest gently on top.

Step 4: Rotate the Container

Turn the bowl approximately one-quarter turn.

Repeat the same lifting, stretching and folding motion on the next side.

Step 5: Repeat on All Four Sides

Continue until you have stretched and folded the dough from all four sides.

This completes one set of stretch and folds.

The dough may feel loose during the first set. With each round, it should gradually become smoother and more resistant.

How Many Stretch and Folds Does Sourdough Need?

Most sourdough doughs benefit from three to four sets of stretch and folds.

However, the right number depends on:

• Flour protein content
• Dough hydration
• Mixing method
• Amount of whole grain flour
• Fermentation speed
• Dough strength
• Whether other folding techniques are used

A lower-hydration dough made with strong bread flour may need fewer sets.

A wetter dough may benefit from additional strengthening, especially early in bulk fermentation.

More folds are not always better. Once the dough has developed enough strength, continued handling can tighten it unnecessarily or disturb the gas building inside.

How Far Apart Should Stretch and Folds Be?

Stretch and fold sets are commonly spaced about 20 to 30 minutes apart.

This resting period gives the gluten time to relax before the next set.

If you try to fold the dough again immediately, it may feel tight and resistant. Waiting allows it to become extensible again so it can stretch without tearing.

Some recipes use 30- to 45-minute intervals. Either approach can work.

The important thing is to give the dough enough time to rest between sets.

How Do You Know When the Dough Has Enough Strength?

As stretch and folds build structure, the dough should begin to change noticeably.

Signs of developing dough strength include:

• A smoother surface
• Less sticking
• Greater elasticity
• Increased resistance when stretched
• Dough that holds together as one mass
• Rounded edges in the container
• Better ability to hold its shape

At the beginning, the dough may spread quickly after folding. Later, it should remain more rounded and cohesive.

You may also notice that each set becomes shorter because the dough no longer stretches as far before resisting.

What Should Stretch and Fold Dough Feel Like?

During the first set, the dough may feel:

• Sticky
• Loose
• Uneven
• Weak
• Difficult to lift cleanly

After several sets, it should feel:

• Smoother
• More elastic
• More organized
• Stronger
• Slightly bouncy
• Easier to lift as one piece

The dough should still be soft. Strength does not mean it has to become stiff or dry.

Should the Dough Tear During Stretch and Folds?

The dough should stretch without significant tearing.

A small tear is not usually a disaster, especially during the first set. However, repeated tearing can indicate:

• The dough needs more rest.
• The gluten has not developed enough.
• The flour is weak.
• The dough is being stretched too aggressively.
• The dough has become overly acidic or overfermented.

If the dough feels tight and tears easily, stop and let it rest before trying again.

Use a slow, gentle movement instead of pulling sharply.

Can You Overdo Stretch and Folds?

Yes.

Too many folds can make the dough overly tight or disturb fermentation.

This is especially true later in bulk fermentation when the dough contains more gas and has become delicate.

Signs that you may be overhandling the dough include:

• The dough becomes increasingly tight.
• It resists stretching almost immediately.
• Gas bubbles are repeatedly deflated.
• The surface begins tearing.
• The dough loses its airy texture.
• Fermentation appears to slow.

Once the dough has enough strength, allow it to rest undisturbed.

Stretch and Folds During Bulk Fermentation

Stretch and folds occur during bulk fermentation, not before it.

The fermentation clock begins when the starter is added to the dough.

This means that if you perform four sets of folds over two hours, those two hours are already part of bulk fermentation.

After the final set, the dough may need additional time to continue rising and developing before shaping.

Do not restart your bulk fermentation timer after the folds are complete.

Should You Stretch and Fold After Adding Salt?

In many recipes, salt is added before the first stretch and fold.

Some methods mix flour, water and starter first, then add salt after a short rest. Other recipes include salt during the initial mix.

Both methods can work.

The important thing is to make sure the salt becomes fully incorporated before the dough progresses too far through bulk fermentation.

If salt is added separately, use the first set of folds to help distribute it evenly throughout the dough.

Can You Do Stretch and Folds With Wet Dough?

Yes. Stretch and folds are particularly useful for wet sourdough dough.

High-hydration dough can be too sticky to knead comfortably, but folding allows you to strengthen it without adding extra flour.

Use wet hands and move gently.

If the dough is extremely loose, it may be easier to use coil folds after the first one or two sets of traditional stretch and folds.

Stretch and Folds vs. Coil Folds

Both techniques strengthen sourdough dough, but they are performed differently.

During a traditional stretch and fold, you lift one edge of the dough and fold it across the center.

During a coil fold, you lift the dough from underneath the middle and allow both ends to fold underneath themselves.

Stretch and folds are often easier during the early part of bulk fermentation when the dough is still loose.

Coil folds are gentler and can work well later in bulk fermentation when the dough has developed more structure and gas.

Some bakers use only one method, while others use both.

Can You Use a Mixer Instead of Stretch and Folds?

Yes.

A stand mixer can develop gluten more quickly through mechanical mixing.

If the dough is thoroughly mixed and already has strong gluten development, it may need fewer folds during bulk fermentation.

However, even machine-mixed dough may benefit from one or two gentle folds to improve organization and equalize temperature.

The method you choose depends on your recipe, equipment and preference.

What Happens If You Skip Stretch and Folds?

Some doughs can still develop enough gluten through time alone, especially when made with strong flour and lower hydration.

However, skipping folds may result in:

• Weaker dough
• More spreading
• Less oven spring
• Difficulty shaping
• Uneven crumb
• Reduced gas retention

If your dough consistently feels loose or bakes into a flat loaf, adding structured stretch and folds may improve the result.

What If You Forget a Set of Stretch and Folds?

Missing one set usually will not ruin your bread.

Evaluate the dough before deciding what to do.

If it still feels loose and is early in bulk fermentation, perform another set and continue.

If the dough has already risen significantly and contains many bubbles, it may be better to leave it alone rather than disturb the gas.

Sourdough is flexible. Focus on the condition of the dough rather than trying to complete a specific number at all costs.

Common Stretch and Fold Mistakes

Pulling the Dough Too Hard

Stretch only until you feel resistance.

Aggressive pulling can tear the gluten network instead of strengthening it.

Adding Too Much Flour

Use lightly wet hands instead of coating the dough with flour.

Adding flour during folds can create dry patches and alter the recipe’s hydration.

Folding Too Frequently

The dough needs time to relax between sets.

Repeated folding without rest can make it tight and difficult to stretch.

Continuing Too Late Into Bulk Fermentation

As the dough becomes more aerated, it should be handled more gently.

Late folds can deflate gas and disrupt the structure that has already formed.

Assuming More Sets Always Create Better Bread

The goal is sufficient strength, not the highest possible number of folds.

Stop when the dough looks smoother, holds together and resists stretching appropriately.

Starting the Bulk Fermentation Timer After the Last Fold

Bulk fermentation begins when the starter is mixed into the dough.

The time spent completing stretch and folds counts toward the total bulk fermentation period.

Megan’s Baking Tip

Pay attention to how the dough changes from one set to the next. During the first fold, it may feel loose and sticky. By the third or fourth set, it should feel smoother and stronger. Once the dough begins resisting the stretch and holds its shape better in the bowl, I stop folding and let fermentation continue without disturbing it.

Frequently Asked Questions

How many stretch and folds should I do for sourdough?

Most sourdough recipes use three to four sets, spaced about 20 to 30 minutes apart. Some doughs need fewer or more depending on hydration, flour strength and mixing method.

How long should I wait between stretch and folds?

Wait approximately 20 to 30 minutes between sets. This gives the gluten time to relax so the dough can stretch again without tearing.

Can I do too many stretch and folds?

Yes. Too many folds can tighten the dough, disrupt gas development and overwork the gluten. Stop once the dough has developed adequate strength.

What if my dough tears during stretch and folds?

The dough may need more rest, or you may be stretching it too aggressively. Let it rest and use slower, gentler movements during the next set.

Do stretch and folds count as bulk fermentation time?

Yes. Bulk fermentation begins when the starter is added. The time spent performing stretch and folds is part of bulk fermentation.

Can I stretch and fold sourdough every hour?

You can, but intervals of approximately 20 to 30 minutes are more common during the early stage of bulk fermentation. Longer intervals may be appropriate depending on the recipe.

Can I skip stretch and folds?

Some doughs can develop through time or mechanical mixing, but folds usually improve dough strength, gas retention and shaping.

Should I stretch and fold before or after adding salt?

Salt is usually added before or during the early part of bulk fermentation. Make sure it is fully incorporated before completing your main sets of folds.

Why is my dough still sticky after stretch and folds?

Sourdough may remain somewhat sticky, especially at higher hydration. It should become more cohesive and elastic even if it does not stop sticking completely.

When should I stop stretch and folds?

Stop when the dough feels smoother, holds together, resists stretching and maintains a more rounded shape between sets.

Final Thoughts

Stretch and folds are one of the simplest ways to build strength in sourdough dough without traditional kneading.

To perform a set, gently lift one side of the dough, stretch it without tearing and fold it over the center. Repeat on all four sides, then allow the dough to rest before the next set.

Most doughs benefit from three to four sets during the early part of bulk fermentation, but the dough itself should guide you.

Look for:

• A smoother surface
• Greater elasticity
• Better resistance
• A more cohesive shape
• Improved gas retention

Once the dough has enough strength, stop handling it and allow fermentation to continue.

With practice, you will begin to feel the dough developing from one set to the next—and that physical awareness is one of the most valuable skills you can build as a sourdough baker.