Thermomix Sourdough: Make Real Sourdough Bread in Your Thermomix

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No matter which Thermomix model you own, this guide to making real sourdough bread in your Thermomix will see you baking a successful loaf every single time! Thermomix sourdough could not be easier!

I’ve owned a Thermomix for over 10 years and am a huge fan of these amazing machines. I’ve been baking bread for the same amount of time. In fact the first thing I ever made in my Thermomix T31 was a yummy focaccia bread with olive oil, fresh rosemary and sea salt. It was so good and is something I still make to this day.

Fast forward a few years and sourdough has been a fun and extremely rewarding journey – both for myself – and my family who get to eat every single loaf that comes out of my oven. We’ve made many flavor combinations, both sweet and savory and have enjoyed many fresh loaves of sourdough bread.

Thermomix sourdough bread recipe
Sourdough mixed in the Thermomix – you can make sourdough in any model of Thermomix.

Thermomix Sourdough Bread

When I started my journey into sourdough, I always mixed it by hand – I liked to get a feel for the dough and developing my intuition with each stage. Since starting this blog and my Sourdough Facebook Group I’ve been asked multiple times how to use a Thermomix to make sourdough.

At first I resisted – seriously who wants sticky dough stuck on Thermomix blades, right? But I thought, what the hell, maybe I should try it. And so I have spent several weeks testing out different techniques. I’ve tested this recipe many, many times and it works really well. So in order to help other Thermomix owners enter the world of sourdough, I’ve decided to share this method with you. I’ve even discovered that the blades don’t get that sticky and are quite easily cleaned. Who would have thought?

The dough isn’t actually that sticky once it’s mixed for the right time and it will mostly come away from the blades in one big glob. You can then easily clean the bowl with some warm water and quick blitz on speed 10.

Why Use Your Thermomix to Make Sourdough Bread?

Using your Thermomix means you don’t have to handle the dough really at all until the shaping stage. This hands off approach won’t suit everyone – and to be honest – I still love to hand mix my dough – but using your Thermomix will:

  • save you time at the beginning of the process;
  • allow you to develop the gluten network more quickly;
  • keep your hands clean;
  • allow you to have a more hands off approach.

There are many people who say that there is no need to knead sourdough (haha) and you know what, they are right. But if you have a Thermomix sitting on the bench, why not use it to your advantage? It will cut down on the time it takes you to produce a loaf of sourdough bread.

Understand The Process of Making Sourdough Bread

You may have already made sourdough by hand and understand the process. If you haven’t made sourdough by hand, I highly recommend you reading this beginner’s guide to baking simple sourdough, which will take you through some of the ins and outs of the process, which are still applicable, even though you are making sourdough in your Thermomix.

Whether you use a machine – or your hands – it’s really important to understand why you are doing things and what might happen if things go wrong (and believe me things can go wrong!). While you are building the sourdough dough in your Thermomix, you will still need to do a bulk ferment, shaping, cold retard and bake the same way as “conventional” sourdough. You’ll find a handy glossary of sourdough terminology here.

The Key to Sourdough Success

The absolute most important thing when baking sourdough is to have a super bubbly, active starter. If you haven’t created a sourdough starter – you’ll find the simple guide to creating yours here. If you’re having trouble getting your starter to be ready to bake with, check out our troubleshooting guide here. Having a super active sourdough starter is the very first step in ensuring you get superior oven spring when your sourdough hits the oven. If you are wanting to make your sourdough starter extra sour, you’ll find ideas on how to do that here.

sourdough starter with elastic band to show rise level
You want to use your sourdough starter when it’s at it’s peak activity, usually a few hours after you’ve fed it.

Baking Timeline When Making Thermomix Sourdough

When baking sourdough, it’s important to create your own baking timeline so that you know what needs to happen when. Planning things makes sure you don’t miss a step.

My timeline for Thermomix Sourdough looks something like this – but it’s all negotiable.

DAY 1
6.00 am – Feed sourdough starter
10.00 am – Premix and Autolyse in the Thermomix
10.30 am – Mix dough using dough mode until it forms a smooth ball
11.30 am – Place into glass bowl, cover and leave to bulk ferment
9.00 pm – Shape, lift into banneton/bowl & into the fridge for cold ferment

DAY 2
10.00 am – Bake in hot oven
7.00pm – finally cut into delicious sourdough!

Thermomix Sourdough Hydration Level

I’ve made the hydration of this Thermomix Sourdough Loaf around 78%. It has 380g of water plus 100g of starter (so a total of 430g of water). The Thermomix handles the higher hydration dough very easily. I’ve added 100g of starter because it does mean that you can ferment this dough a little faster if you need to. This, together with the faster starter the Thermomix gives you, will allow you bake a loaf somewhat faster than using less starter.

If you prefer to use less starter to increase the sourness of your loaf, you can certainly adjust it to suit your needs.

If you have not made sourdough before – by hand – then I would definitely reduce the water in this recipe a little – so start with 350g and once you’re comfortable handling this, then move up gradually to 380g of water. A little lower hydration will mean that your dough will be a little easier to handle.

What Equipment Will I Need To Make Thermomix Sourdough Bread?

You can make a successful loaf of sourdough with very basic equipment, as well as your Thermomix of course. However, it really does help to have some specialised equipment. Some of my favourite things to use while baking sourdough bread are:

  • Glass mixing bowl so you can watch all the action unfold – while you mix it in your Thermomix, you’ll still need to ferment your dough in a separate bowl.
  • Silicone dough scraper to get the dough out of the glass bowl without losing the precious bubbles.
  • Stainless steel bench scraper for easy sourdough shaping.
  • Banneton – a shaping basket to maintain your dough shape while cold fermenting.
  • Bread Lame for perfect scoring.
  • Dutch oven to ensure you get the best possible oven spring and crust.
  • Good quality bread knife to ensure easy & consistent slicing of your sourdough bread.

You can visit my Amazon Store for all my fave sourdough equipment here.

What Else Can I Use My Thermomix For When Making Sourdough Bread?

Your Thermomix is not only useful for mixing your dough when baking sourdough bread, it’s also very handy for the following tasks:

  • Kitchen scales when feeding your sourdough starter. You can place your jar on the lid and use it to weigh your flour and water.
  • Grind up your sourdough starter if you dry it to save it as a backup or to give to a friend. Your Thermomix will turn it into a powder which is easier to hydrate.
  • Milling your own flour for baking sourdough. Milling oats, wheat berries and other whole grains is super simple – and it doesn’t get much fresher!
  • Baskets as Bannetons – the basket of your Thermomix makes the perfect banneton for a half size loaf. If you have a few baskets you can split the dough into two pieces and shape two smaller loaves. I love to do two smaller loaves to give as gifts – or to keep a little loaf in the freezer.
  • You can also make this amazing sourdough pizza dough.
Use an old cotton pillow case that has been cut into a square, flour with rice flour and use to line your Thermomix basket. It will hold half of this recipe.

Want to shape your sourdough in a batard rather than a boule? You’ll find instructions here.

Go forth and conquer your sourdough baking and I can’t wait to see your results in our Sourdough for Beginner Bakers group!

If you’re looking for some tips to improve your oven spring when baking sourdough bread, you’ll find 6 tips here.

Want to add some flavors to your sourdough bread? You’ll find the ultimate guide to adding flavors to your sourdough bread here.

Looking for an easy Sourdough Pizza Dough using your Thermomix? Check out this one!

AuthorKateCategory, DifficultyIntermediate

No matter which Thermomix model you own, this guide to making real sourdough bread in your Thermomix will see you baking a successful loaf every single time! Thermomix sourdough could not be easier!

Thermomix sourdough

Yields1 Serving
Prep Time1 dayCook Time45 minsTotal Time1 day 45 mins

 100 g Sourdough Starter (fed and active)
 380 g Cold filtered water (if you want a lower hydration dough, reduce the water to 350g)
 500 g Baker's Flour
 10 g Salt

AUTOLYSE
1

Add your sourdough starter and water to the TM bowl. Mix speed 3 for 15 seconds.

2

Add your flour and salt to the sourdough starter and water in the TM bowl. Mix for 20 seconds on Dough mode. Leave your dough in the TM bowl for 30 minutes to 1 hour.

KNEADING THE DOUGH TO DEVELOP GLUTEN
3

Mix the dough for 3 minutes on Dough mode. Leave dough to rest in the bowl for at least 10 minutes (you can leave it up to around 30 minutes if you want to). You don't want the dough to get too warm from mixing.

4

Mix the dough for another 3 minutes on Dough mode. The gluten in your dough will be well formed by now and the dough should be slapping the sides of the bowl. When you look into the bowl, you should see that there is a gap between the dough and the side of the bowl because the dough has formed a "ball". The dough will be elastic when you pull it up and have quite a bit of stretch.

5

Pour the dough into a glass bowl. It should "bounce" out in one big blob if you jiggle the TM bowl upside down. Most if it will come away from the blades in this way. You can use a silicone spatula to get the remaining dough if you need to.

If there is still a little sticky dough left on the blades, just cover with water and blitz on speed 10 to easily clean the blades. The quicker you do it, the easier they are to clean. A quick zip around with a Thermo brush and you should be good to go!

BULK FERMENT
6

Cover the dough in your bowl with plastic wrap and leave it to bulk ferment. The time you need to bulk ferment will depend on the temperature in your home. This recipe has 100g of starter so will ferment at a good rate. You can leave it overnight, but you'd need to have a cool home, so under 18 degrees. You don't want it to go over while you're sleeping.

Your dough is ready to move onto the next stage when it's doubled in size, slightly domed on top and is full of bubbles. It will be soft and pillowy and NOT sticky on top!

SHAPING YOUR DOUGH
7

Use a silicon spatula to gently ease the dough out of the glass bowl. You want it to land "upside down" with the smooth top of the dough at the bottom and the sticky underneath on the top. This will make it very easy to shape.

8

Using your hands, pull the of the dough into the centre so that it starts to form a ball. Once all the edges are in the centre, turn the dough over so that the smooth dough is at the top. Using the sticky underside, gently tension the dough so that it forms a ball. There is a video at the end of this recipe to show you how the shaping is done.

9

You will need a banneton to put your dough into. If you do not have a banneton, then a bowl or basket lined with a floured tea towel is perfectly fine. Make sure your bowl isn't too big though, you want your dough to retain some shape.

Whatever you're using needs to be liberally floured with your rice flour. If you're using a banneton - liberally sprinkle it with rice flour. If you're using a cloth or tea towel, rub the flour into it to ensure it becomes non stick.

10

Once the dough is shaped into a tight ball, place it into your banneton smooth side down, so your seam is on the top - this way the top of your dough will get the pretty lines from the banneton. If you're using a cloth or tea towel in a bowl it's ok to put your dough with the smooth side up. Just make sure the dough is tight.

Lift your dough around the edges to pop a little more rice flour if you feel it needs it. Just try to handle the dough as little as possible and be really gentle as you really want to preserve all the gases and air bubbles that have formed during your bulk ferment.

COLD RETARD
11

Now your dough is in it's "shaping container" cover it loosely with a plastic bag or damp tea towel and place into the fridge. I use a large plastic bag to cover it - I just reuse it each time. It's not totally essential to cover it - you can place it in the fridge uncovered if you'd prefer.

Try to leave it in the fridge for a minimum 5 hours up to a maximum of around 36 hours. The longer you leave it the better your bread will be! A longer cold ferment creates beautiful blisters on your crust and a deeper sourdough flavour. It will also ensure your dough forms a skin which makes it easier to score.

PREPARING TO BAKE YOUR SOURDOUGH
12

Once you're ready to bake your sourdough, you'll need to preheat your oven to 230C/450F. Place your Dutch Oven into the oven when you turn it on so it gets hot. Try to preheat for around 1 hour to ensure your oven is super hot - but you know your oven so just adjust this time if you need to.

Leave your dough in the fridge until the very last minute - placing a cold dough into a hot oven will give you a great "spring".

NOW IT'S TIME TO BAKE!
13

Now it's time to bake!

When your oven is at temperature. Take your sourdough out of the fridge. Gently place it onto a piece of baking paper. If you use a banneton, you will have a nicely rounded shape. If you used a bowl, it will still have shape but may not be as round. Make sure that you make the baking paper big enough to use the edges as a handle to lower to dough into your Dutch Oven.

Gently score your bread with a lame, clean razor blade or knife. At minimum a large cross is sufficient, but you can get as artistic as you like. Try to score it fairly deep to ensure the dough opens up.

Carefully take your dutch oven out of the oven. Place the sourdough into the pot using the baking paper as a handle. Put the lid on and place into the hot oven. If you want to you can spritz your dough with extra water before you put the lid on.

If you're worried about the base of your bread burning, place a baking sheet on shelf underneath your Dutch Oven - it works!

Bake your sourdough for 30 minutes with the lid on. Set a timer so you don't forget. At 30 minutes take the lid off and bake for a further 12-15 minutes with the lid off. This will give you a nice colour to the top of your bread and further develop the crust.

A deep score will help your dough to open up in the oven, giving a better spring.

FINISHING YOUR BAKE
14

When you remove your dough from the oven, carefully remove it from the dutch oven as soon as possible and place on a wire rack to cool. If you prefer a less crusty loaf, wrap in a tea towel and let it cool under that. The tea towel will make the bread sweat a little and soften your crust.

If you're worried about your bread not being cooked all the way through, turn the oven off and place your dough straight onto the oven rack. Leave the door ajar and let your bread rest there for a few hours.

Wait at least 90 minutes before you cut into your delicious loaf!

Ingredients

 100 g Sourdough Starter (fed and active)
 380 g Cold filtered water (if you want a lower hydration dough, reduce the water to 350g)
 500 g Baker's Flour
 10 g Salt

Directions

AUTOLYSE
1

Add your sourdough starter and water to the TM bowl. Mix speed 3 for 15 seconds.

2

Add your flour and salt to the sourdough starter and water in the TM bowl. Mix for 20 seconds on Dough mode. Leave your dough in the TM bowl for 30 minutes to 1 hour.

KNEADING THE DOUGH TO DEVELOP GLUTEN
3

Mix the dough for 3 minutes on Dough mode. Leave dough to rest in the bowl for at least 10 minutes (you can leave it up to around 30 minutes if you want to). You don't want the dough to get too warm from mixing.

4

Mix the dough for another 3 minutes on Dough mode. The gluten in your dough will be well formed by now and the dough should be slapping the sides of the bowl. When you look into the bowl, you should see that there is a gap between the dough and the side of the bowl because the dough has formed a "ball". The dough will be elastic when you pull it up and have quite a bit of stretch.

5

Pour the dough into a glass bowl. It should "bounce" out in one big blob if you jiggle the TM bowl upside down. Most if it will come away from the blades in this way. You can use a silicone spatula to get the remaining dough if you need to.

If there is still a little sticky dough left on the blades, just cover with water and blitz on speed 10 to easily clean the blades. The quicker you do it, the easier they are to clean. A quick zip around with a Thermo brush and you should be good to go!

BULK FERMENT
6

Cover the dough in your bowl with plastic wrap and leave it to bulk ferment. The time you need to bulk ferment will depend on the temperature in your home. This recipe has 100g of starter so will ferment at a good rate. You can leave it overnight, but you'd need to have a cool home, so under 18 degrees. You don't want it to go over while you're sleeping.

Your dough is ready to move onto the next stage when it's doubled in size, slightly domed on top and is full of bubbles. It will be soft and pillowy and NOT sticky on top!

SHAPING YOUR DOUGH
7

Use a silicon spatula to gently ease the dough out of the glass bowl. You want it to land "upside down" with the smooth top of the dough at the bottom and the sticky underneath on the top. This will make it very easy to shape.

8

Using your hands, pull the of the dough into the centre so that it starts to form a ball. Once all the edges are in the centre, turn the dough over so that the smooth dough is at the top. Using the sticky underside, gently tension the dough so that it forms a ball. There is a video at the end of this recipe to show you how the shaping is done.

9

You will need a banneton to put your dough into. If you do not have a banneton, then a bowl or basket lined with a floured tea towel is perfectly fine. Make sure your bowl isn't too big though, you want your dough to retain some shape.

Whatever you're using needs to be liberally floured with your rice flour. If you're using a banneton - liberally sprinkle it with rice flour. If you're using a cloth or tea towel, rub the flour into it to ensure it becomes non stick.

10

Once the dough is shaped into a tight ball, place it into your banneton smooth side down, so your seam is on the top - this way the top of your dough will get the pretty lines from the banneton. If you're using a cloth or tea towel in a bowl it's ok to put your dough with the smooth side up. Just make sure the dough is tight.

Lift your dough around the edges to pop a little more rice flour if you feel it needs it. Just try to handle the dough as little as possible and be really gentle as you really want to preserve all the gases and air bubbles that have formed during your bulk ferment.

COLD RETARD
11

Now your dough is in it's "shaping container" cover it loosely with a plastic bag or damp tea towel and place into the fridge. I use a large plastic bag to cover it - I just reuse it each time. It's not totally essential to cover it - you can place it in the fridge uncovered if you'd prefer.

Try to leave it in the fridge for a minimum 5 hours up to a maximum of around 36 hours. The longer you leave it the better your bread will be! A longer cold ferment creates beautiful blisters on your crust and a deeper sourdough flavour. It will also ensure your dough forms a skin which makes it easier to score.

PREPARING TO BAKE YOUR SOURDOUGH
12

Once you're ready to bake your sourdough, you'll need to preheat your oven to 230C/450F. Place your Dutch Oven into the oven when you turn it on so it gets hot. Try to preheat for around 1 hour to ensure your oven is super hot - but you know your oven so just adjust this time if you need to.

Leave your dough in the fridge until the very last minute - placing a cold dough into a hot oven will give you a great "spring".

NOW IT'S TIME TO BAKE!
13

Now it's time to bake!

When your oven is at temperature. Take your sourdough out of the fridge. Gently place it onto a piece of baking paper. If you use a banneton, you will have a nicely rounded shape. If you used a bowl, it will still have shape but may not be as round. Make sure that you make the baking paper big enough to use the edges as a handle to lower to dough into your Dutch Oven.

Gently score your bread with a lame, clean razor blade or knife. At minimum a large cross is sufficient, but you can get as artistic as you like. Try to score it fairly deep to ensure the dough opens up.

Carefully take your dutch oven out of the oven. Place the sourdough into the pot using the baking paper as a handle. Put the lid on and place into the hot oven. If you want to you can spritz your dough with extra water before you put the lid on.

If you're worried about the base of your bread burning, place a baking sheet on shelf underneath your Dutch Oven - it works!

Bake your sourdough for 30 minutes with the lid on. Set a timer so you don't forget. At 30 minutes take the lid off and bake for a further 12-15 minutes with the lid off. This will give you a nice colour to the top of your bread and further develop the crust.

A deep score will help your dough to open up in the oven, giving a better spring.

FINISHING YOUR BAKE
14

When you remove your dough from the oven, carefully remove it from the dutch oven as soon as possible and place on a wire rack to cool. If you prefer a less crusty loaf, wrap in a tea towel and let it cool under that. The tea towel will make the bread sweat a little and soften your crust.

If you're worried about your bread not being cooked all the way through, turn the oven off and place your dough straight onto the oven rack. Leave the door ajar and let your bread rest there for a few hours.

Wait at least 90 minutes before you cut into your delicious loaf!

Thermomix Sourdough

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