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Sourdough - transform your bread & your health

The Healthiest Bread in the World: Science-Backed Baking for a Better Gut Heath

Vanessa Kimbell is a time-served baker who specialises in gut health and trained in the art of sourdough bread in the Dordogne. A bestselling author, she holds a doctorate in Baking as Lifestyle Medicine and Preventative Health and is a member of BANT. Vanessa combines deep expertise in sourdough with unparalleled knowledge of the science of bread and digestion. At The Sourdough School, she teaches personalised artisan bread tailored to optimise gut health and genetics. Discover healthy bread recipes, tips, and techniques featuring sourdough fermentation, wholegrain benefits, and personalised baking advice—designed to inspire a slower, healthier approach to baking, eating, and sharing bread.

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Heath Care Providers: Training In Prescribing Baking As Lifestyle Medicine

Sourdough Recipe – From Charlotte Pike’s book Fermented

26 May 2016 by Dr Vanessa Kimbell

fresh sourdough
I’m delighted to share this sourdough recipe taken from the book Fermented by Charlotte Pike; it’s a brilliant book, that is beautifully photographed by Tara Fisher, and styled by Annie Rigg.

I met Charlotte way back when I wrote my first book, when she kindly helped me test some of my recipes.  It was in the days when we had time to visit each other and have lunch.  We’d chat about our hopes and dreams.  These days we are lucky to grab five minutes to catch up on the ins and outs of life, but being short of time is sometimes the price you pay when your dreams come true.

Charlotte is now an established food writer and graduated from Ballymaloe cookery school.   I did get to spend some time with Charlotte when she spent the day here at the Sourdough School whist extensively researching for this wonderful book.

There are lots of recipes in Fermented, that go far beyond Sourdough, and include recipes on making your own yogurt, Sauerkraut, Kefir, Kimchi and vinegar.  It’s a fantastic addition to anyones bookcase.

Fermented by Charlotte Pike. Published by Kyle Books, priced £16.99. Photography by Tara Fisher

Sourdough Bread Sourdough bread is one of the most rewarding things to bake. It takes a bit of practice to get it right, but the results are delicious. Don’t be put off if it doesn’t work perfectly first time; make a note of what you did and eventually you’ll perfect your loaf, getting better every time you make it. Sourdough bread is simply made from flour, water and salt – with no added yeast, unlike ordinary bread. Instead it slowly harnesses wild yeasts in the atmosphere to activate these simple ingredients. This means conditions such as the environment you live in, and the temperature of your home, all play a part in the process – which is why you may need to tweak the method to work for you. Sourdough bread not only tastes fantastic, but it is also easier to digest than most other breads. This is because the process of fermentation digests the phytic acid in the grain. Phytic acid, or phytate, is a substance found in many plant foods, including grains. When ingested, it binds nutrients in the digestive tract, which inhibits their absorption by the body. Fermenting grains, such as wheat flour, by making a sourdough starter, breaks down the phytic acid, making vitamins and minerals in the grain more available for our bodies to absorb. Always use organic flour for best results. If you’re on mains water, it’s a good idea to use filtered water, if you can, as chlorine and chemicals could inhibit the fermentation process. To make sourdough bread, you will first need to make a starter. Sometimes people are given a starter from a friend, who already has one established. If you’re not so lucky, and don’t want to make your own starter, you could buy the starter from a specialist bakery or delicatessen.

If this is the case, you can skip to Step 2 of the recipe.

White sourdough bread MAKES APPROX. 400G STARTER

  • 250g organic strong white bread flour (added over 4 days)
  • 150ml filtered or bottled mineral water at room temperature

If you’ve never made sourdough before, this is the place to start. It can take a couple of attempts at sourdough to get it right, but that’s the same for everyone, so don’t be disheartened if your first attempt doesn’t turn out perfectly. Sourdough is a living, breathing thing, and it reacts differently, depending on the weather, where in the world you live and the ingredients you use. You can either make your starter from scratch, or use one from someone who has one already established, which saves a couple of days.

If you’re given some active starter, you can skip to Step 2.

STEP 1 – MAKING THE SOURDOUGH STARTER

Day 1 Measure out 100g of the flour and 100ml of the water in a large mixing bowl. Stir well with a wooden spoon to form a smooth paste without any lumps. Loosely cover the bowl with clingfilm or a cloth and set aside on your kitchen worksurface for 3 days. Avoid disturbing it during this time.

Day 4 After 3 days, the starter will be more runny and smell slightly fruity or vinegary. Stir the starter with a wooden spoon and mix in 25ml of water, stirring well to evenly incorporate, then 75g flour. Cover the bowl lightly with clingfilm or a cloth and set aside for a further day, again on the worksurface. Day 5 Weigh the mixture and throw away half. Place the remaining 200g (approx.) back in the bowl and stir in the remaining 75g flour and 25ml water. Cover with clingfilm or a cloth and set aside on the kitchen worksurface for a further day.

Day 6 Your sourdough starter is now active and ready to use. It should smell fruity and vinegary, but not excessively sour. If the starter smells very strong, and possibly unpleasant, it’s likely it has died, and you will need to start again. There are many reasons for starters dying; it can sometimes be caused by ambient temperature or the water you’re using. Later on, it can die by being fed too little. The best advice I can give you is not to worry. It happens. The hardest part of making a starter is getting it going. Just throw it away and start again. Keep a note of everything you do, as it may help identify future successes and failures further down the line. Weigh out 75g of the starter and store in a sealed plastic container in the fridge. This is your sourdough insurance policy. You can leave it indefinitely in the fridge or freezer as a back-up. Don’t worry if it separates. The vinegary layer that forms on the surface is called hooch. It’s a protective layer, and it may turn quite black in colour, but this is absolutely fine. When you are ready to use it, simply stir the hooch into the solids and use in step 2 of the recipe.

LevainStarter3196

STEP 2 – MAKING THE LEVAIN FOR THE LEVIAN

75g Sourdough Starter

200ml filtered or mineral water at room temperature

200g organic strong white bread flour

MAKES 1 LARGE LOAF (APPROX. 1.25KG)

650g organic strong white bread flour

100g dark rye flour

500ml lukewarm water

175g Sourdough Levain (see above)

15g fine sea salt

You will need a well-floured 1kg banneton a sharp knife, grignette or lame to slash the loaf

A levain is the stage between the starter and the bread dough. You take a small quantity of the sourdough starter and activate it.

Sourdough levain is what I use in all of my sourdough baking recipes. Place 75g sourdough starter in a large mixing bowl and stir in the water.

Add the flour and mix to a thick paste. Cover the bowl loosely with clingfilm and set aside at room temperature for at least 4 hours, after which time it will start to bubble. This shows it’s ready to bake with. The levain will remain active for up to 3 days, stored covered in clingfilm on the kitchen work surface; just make sure you stir it well before use.

After 3 days, it will become thin and runny again. At this point, keep back 75g to use as a starter for your next batch of levain. (As before, you will need to mix it with 200ml water and 200g flour and then set it aside on the kitchen work surface for between 4 hours and 3 days until needed.)

Sourdough16657
Put all the ingredients in a large bowl and mix together to form a wet and sticky dough using a spatula or wooden spoon

STEP 3 – MAKING THE SOURDOUGH BREAD Put all the ingredients in a large bowl and mix together to form a wet and sticky dough using a spatula or wooden spoon. Set aside at room temperature for about 20 minutes, covered lightly with clingfilm. Knead gently for 2–3 minutes and then set aside for 1 hour, covered with clingfilm. The dough will still be quite wet and sticky. It won’t increase in size yet. Don’t worry if you can still see streaks of flour through the dough.

You want to treat your sourdough gently, rather than knead it as kneading will produce a tough loaf. Turn the dough out onto a floured work surface. Lift one edge of the dough and fold it into the centre. Give the dough a quarter turn and repeat this process 4 times. This will start to bring your dough into a ball.

Sourdough

Place the dough rounded side down, seam side up into a very well-floured banneton and cover with a damp tea towel (this helps to prevent the bread from drying out). Transfer the bread to either a sunny spot or a warm cupboard and set aside to ferment for 4–6 hours, during which time the dough should rise to the top of the banneton. (You can leave the bread to ferment for up to 12 hours, which will result in a slightly more sour flavour.)

Sourdough shpaing

Preheat the oven to 200°C fan/220°C electric/gas mark 7 and place a baking tray or baker’s stone inside the oven to heat up. Just before you are about to bake your loaf, remove the tray or stone from the oven and dust it liberally with flour. Turn the bread out onto the floured tray or stone and deeply score the surface with a sharp blade. Bake for 40–50 minutes until the crust is brown and firm, and the loaf feels lighter. Remove from the oven and transfer to a wire rack to cool completely.

This bread keeps very well, and is delicious toasted when a few days old.

SourdoughBanetton16793

( Please note that both the recipe and the photographs have been shared with kind permission from the publishers Kyle Cathie.)

All reasonable care is taken when writing about health aspects of bread, but the information it contains is not intended to take the place of treatment by a qualified medical practitioner. You must seek professional advice if you are in any doubt about any medical condition. Any application of the ideas and information contained on this website is at the reader's sole discretion and risk.

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About Dr Vanessa Kimbell

Dr. Vanessa Kimbell is a leading expert in nutrition and the digestibility of bread. Her doctorate focuses on Baking as Lifestyle Medicine and preventative health, specialising in personalising bread for gut health and genetics. She is the Course Director at The Sourdough School, a world-renowned centre of research and education in bread, the gut microbiome, and the impact of bread on health, based in Northamptonshire. She is currently writing her 6th book and is a best-selling international author.

More information about Vanessa can be found:
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Reader Interactions

Comments

  1. Andrew

    23 June 2020 at 6:13 pm

    Has anyone else had problems with the dough being too wet to put a slash in? I only wanted to use a total of 500g of flower so just applied a two thirds ratio to everything. The rise during proving was really good but the dough was still very wet and sticky and stuck to bottom of bonnet on. As soon as I took it out it went flat and tried to put a slash in but it just joined back together. I put in a heated casserole dish to keep the shape and the bread was nice but you could tell it was just a bit too moist.

    Reply
  2. Jane

    9 May 2020 at 8:03 am

    Can any help with the missing amount of water to add please.

    Reply
    • Lucy JenningsLucy Jennings

      2 June 2020 at 9:54 am

      HI Jane it is 500ml lukewarm water, it was next to the rye flour by mistake. I have now corrected this. 🙂

      Reply
  3. Matthew Ford

    2 May 2020 at 3:30 pm

    How much water should I add when making the sourdough loaf?

    Reply
    • Chrissy

      1 June 2020 at 7:55 am

      It’s 500ml. I struggled with this too. It is on the list of ingredients just next to the rye flour but not on a separate line so it’s easy to miss!

      Reply
      • Lucy JenningsLucy Jennings

        2 June 2020 at 9:53 am

        Thanks Chrissy yes you are right it is 500ml lukewarm water, it was next to the rye flour by mistake. I have now corrected this. Thank you for letting us know 🙂

        Reply
  4. Kirsty

    1 May 2020 at 11:37 pm

    I am having trouble following this recipe. How much of the prepared levain do I use in the dough? 175g or 100g? (100g = 175g, less 75 g for the next starter).
    I ended up using 750g flour , 175g levain and 500ml water. The dough seems quite dry. Fingers crossed it turns out OK.

    Reply
  5. Lisa Guia

    1 March 2020 at 7:27 am

    Hi!
    I have a well established rye starter. Could i use this in the recipe?

    Reply
    • Dr Vanessa KimbellVanessa Kimbell

      2 April 2020 at 1:39 pm

      Yes.
      Vx

      Reply
  6. Louisa

    21 February 2018 at 1:30 pm

    I followed this recipe .

    Reply
  7. Louisa

    29 January 2018 at 7:49 am

    hi Vanessa thanks for your unbelievable website… I am a fan!
    Can I leave the dough for the second proof (4-6 hours) in a bowl rather than the banneton and shape it afterwards? It got stuck quite terribly in the banneton even though I really floured it well.

    Reply
    • Dr Vanessa KimbellVanessa Kimbell

      19 February 2018 at 12:52 am

      Did you follow my recipe or this one?
      Vanessa

      Reply
    • Jodie

      14 November 2018 at 12:52 pm

      Have you tried rice flour in the banneton? This helps a lot!

      Reply
      • Dr Vanessa KimbellVanessa Kimbell

        23 November 2018 at 7:12 am

        I’m personally very allergic to rice .. but I still prefer the flour as it’s more attractive on the finished loaf ..but for digestibility rice can be better

        Reply
  8. Mo Quill

    30 October 2017 at 9:02 am

    I have always used a finely grated organic apple picked same day from my garden for my starter. Your recipe states just flour and water…why? I assume the apple speeds up and makes a livelier starter…and it certainly activates much quicker during every process.
    Many thanks for your reply.

    Reply
    • Dr Vanessa KimbellVanessa Kimbell

      16 November 2017 at 8:54 pm

      I use just flour and water. Apple acidifies the dough and bring ready available sugar to the microbes. That said it also can bring in other unwelcome microbes and the dough will ferment anyway .. with or without apple given warmth and regular refreshment.

      Reply

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In their 6pm live session, we help keep our students on track with the syllabus and discuss the application of Baking As Lifestyle Medicine to the 6 pillars of Lifestyle medicine, applying the research papers, application of the Research, and how this ties into prescribing, along with guest lecturers, discussions and sharing knowledge.

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✏️ In this weekly live session, we cover technical baking questions. Students can submit their Baking Record Sheets in advance of the session.

📋 We look at the details of our student's bakes - the specifics of the flour, timings and temperatures. Using our sourdough record sheets Vanessa will make suggestions on how they might modify, or recalibrate the next time they bake.

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IBS AWARENESS MONTH Do you suffer from irritable IBS AWARENESS MONTH

Do you suffer from irritable bowel syndrome (IBS)? It can be tough to deal with the uncomfortable symptoms of stomach cramps, constipation, diarrhoea and bloating. But did you know that making dietary changes, such as incorporating sourdough bread into your diet, could help alleviate some of those symptoms?

Studies have shown that sourdough's long, slow fermentation process can reduce IBS symptoms. Plus, during #ibsawarenessmonth, we're exploring how adding different herbs and spices to your sourdough can further improve both the flavour and the digestion of your bread.

Let's talk about gut health, fermentation, and how sourdough can be a delicious and healthy addition to your diet. Join the conversation and share your experiences with IBS and sourdough.

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THE SOURDOUGH SCHOOL – HAND CARVED WOODEN LAME THE SOURDOUGH SCHOOL – HAND CARVED WOODEN LAME

One of the biggest issues around using a plastic lame to score sourdough, of course, is that eventually the blade will become blunt and the lame could end up in landfill.  So several years ago I talked to my dear friend EJ about developing a lame with a replaceable blade. And he came up with this very beautiful hand carved wooden lame.

Very sadly EJ is no longer with us. Recently a friend of EJ’s who is also a wood turner and carver offered to make these again for us in remembrance of our dear friend.

Follow the link in the bio to our shop where you can find our full selection of wooden sourdough tools 👆

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The Baking As Lifestyle Medicine (BALM) Protocol The Baking As Lifestyle Medicine (BALM) Protocol

The current food system is broken at multiple levels, from the pesticides used in our soils to the emulsifiers and additives adulterating industrially-processed foods. Nowhere is this more apparent than in the bread we eat.  The figures reported by the UK Flour Millers say that bread is bought by a staggering “99.8% of British households” and that “the equivalent of nearly 11 million loaves are sold each day. Approximately 60-70% of the bread we eat is white and sandwiches are thought to account for 50% of overall bread consumption. Average bread purchases are the equivalent of 60.3 loaves per person per year.” 

Most bread sold is made by modern processing methods that strip heart-healthy whole grains of their nutrient contents, resulting in low-fibre bread with a high glycemic index. Over time, white processed bread can increase a person’s risk of insulin resistance alongside other lifestyle diseases.

We’re on a mission to revolutionise the bread making process at every level – from soil to slice. The rules governing this are laid out in our Baking As Lifestyle Medicine protocol. 

#lifestylemedicine #health #functionalmedicine #nutrition #integrativemedicine #healthylifestyle #wellness #lifestyle #rcgp #dietitian #nutritionist #healthcareprofessional #holistichealth #healthyliving #plantbased #guthealth #naturopathicmedicine #selfcare #functionalnutrition  #naturopathicdoctor #foodasmedicine #foodismedicine #lifestylegoals #cpd #lifestylechange #mentalhealth #sourdough #sourdoughschool #bakeforhealth
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