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How to fix your relationship with bread by Dr Vanessa Kimbell

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Home Bakers: Learn To Bake As Lifestyle Medicine

The Classic Diversity Sourdough Baguettes – Ambient

28 January 2026 by Dr Vanessa Kimbell
Diversity Score: 14 ( Blend No 2)

The Classic Diversity Sourdough Baguettes – AmbientSourdough Baguettes

Baguettes are hard to get right. But you won't just woke up one morning being good at them you're to have to practice if you want them like mine.

Quintessentially French, I grew up eating sourdough baguettes. Morris was one of the customers I served age 11, onwards. He spoke patois and he'd eat his bread with the wine he'd trodden with is feet, and the fresh cows chase made with milk from his own herd of 4 cows - raw milk. As he got into his 80's he would fetch his bread on his tractor, refusing to use a mobility aid, he'd drive his T20 to the bakery instead and wait until someone brought his bread out to him.

Perfectly fermented, and with light, airy holes, they are heavenly when freshly baked. The ideal sourdough baguette has a caramelised, golden crust, which, when you pull it apart, reveals a soft, open, tender interior that is ideal for French-style open sandwiches. Sourdough baguettes are also one of the most challenging breads to make. I recommend that you master the classic loaves before attempting sourdough baguettes. Honestly, I am not kidding when I say that baguettes are challenging. I've suggested 2 different hydrations, according to your skill level. Please do not attempt the higher hydration unless you really are an advanced baker, or it will be too challenging to shape, and will ruin your confidence before you develop the skills needed to handle the dough.

A word about flour. Most modern baguettes — even in France — are made with white flour, and a great many commercial ones contain emulsifiers that interfere with the gut microbiome and undermine the very benefits that long fermentation works so hard to create. I personally prefer to use stoneground wholegrain flour. It increases the diversity score of the bread, feeds a broader range of gut bacteria, and allows the fermentation to work at its most powerful. France produces some of the finest milling in the world, and I spent a great deal of time there visiting bakeries. It was through those visits that I first encountered Foricher, a French mill whose flour I was so taken with that I approached them directly, put them in contact with British distributors, persuaded them to produce 1kg bags for home bakers, and introduced them to Richard Hart. Their flour is exceptional, and it is what I use here.

Here is my sourdough baguette advice:

  • Make sure you always use a long (2–3 hour) autolyse and keep your fridge temperature at 5°C.
  • When your dough is fermented and it is time to shape, you will need to both shape and pre-shape lightly. It is worth studying the shaping technique in the video below before you begin.
  • Creating steam in the oven helps with the oven spring. Place a tray full of water in the oven while it is preheating.
  • When it comes to scoring, cut deeply and confidently. In part, the tension you create when shaping will determine how well the baguettes score.
  • Don't forget that Eau de Bassinage is put in after the mix, just after you have worked the gluten.
  • You will need a couche or heavy linen tea towel dusted with flour for the final prove. Alternatively, if you are new to baguettes, you can use a baguette tray.
  • Do measure your oven before shaping the baguettes – your oven might be smaller than the one I have here and you may need to adjust the size of your baguettes to fit.

Please do not be discouraged by the challenge of shaping baguettes. In the video, Adam Pagor — who owns Grain & Hearth bakery in Whitstable — makes this look very easy. Let me tell you, it is not. Professional bakers can shape 100 baguettes a day. That is 500 a week, 2,000 a month, and 24,000 baguettes a year. If this is your first baguette, please celebrate your attempt with humour, accept that it might look like a toddler shaped it, and renew your appreciation for the craftsmanship of bakers!

Getting baguettes into the oven is a little bit tricky; I use a flipping board. If you don't have one, you could use a piece of very sturdy cardboard. It needs to be about 14–15 cm wide and as long as your oven (mine is longer, as I have a Rofco oven).

Gently place the board along the length of the baguette, just touching the couche. Take the couche and flip the baguette very gently on to the board. Now position the board about 13 cm to the right of where the baguette needs to be on the baking tray or stone, and gently flip it left to place the baguette in the right position – it almost won't know it has been moved! Take great care to avoid disturbing the dough as you move it. This move is so gentle, it reminds me of moving my babies when they were sleeping.

Remember that, by using Botanical Blend No. 2 and stoneground wholegrain flour, you are increasing the diversity score of this bread significantly. The long fermentation process also breaks down the phytic acid in the wholegrain flour, making minerals more bioavailable, and produces the short-chain fatty acids that feed the gut lining and support a healthy microbiome. To take things even further, I highly recommend that you eat this with cultured butter to increase your levels of probiotics.

Starter: White double-refreshed

Makes 4 x 500g fat baguettes > Hydration 73%

DDT: 27

Flours

The brand of flours used in this formula
  • Marriage's organic (13% protein) white roller-milled
  • Botanical Blend Flour No 2

For The Leaven

  • 25g white bubbly, lively sourdough starter (from 2nd build)
  • 100g strong white bread flour
  • 90g water at 26°C

For The Dough

  • 800g strong white flour
  • 200g Blend No 2 OR a stoneground wholegrain flour
  • 5g diastatic malt powder (optional - please only add this to your flour if you are using a slow flour such as a Canadian white bread flour with roller mixed wholegrain)
  • 735g water ( for beginners) 785g for advanced bakers
  • 215g leaven (see above)
  • 20g fine sea salt

Bake Temp

preheat oven to 230C then drop to 200C

Bake Time

30–40 minutes depending on how thick and long you make them

Equipment

  • Medium bowl for mixing leaven
  • Clean tea towel or wax cloth
  • Large mixing bowl
  • Lame
  • A dough scraper is very useful
  • A baking stone or a tray
  • Couche or a robust, heavy cotton tea towel.
  • Flipping board

Tutorials

Refresh starter – first buildDay 1, 11pm
Refresh starter – second buildDay 2, 11am
Download sourdough schedule and plan your bakeDay 2, 9pm
Make the leaven, cover & leave overnight Day 2, 10–11pm
Mix the flour, 700g of the water & the leaven into doughDay 3, 8am
Autolyse with leaven for an hour Day 3, 8.15am
Bassinage – Stretch and fold and add the remaining water incrementally ( remember this is more if you are an advanced baker) day 3 9.15am
Last stretch and fold.Day 3, 11am
Add salt mix in well & start bulkDay 3, 11am–2pm
Bulk ends – Now shape your doughDay 3, 2pm
Final proveDay 3, 2.30pm
Getting baguettes into the oven is a little bit tricky; I use a flipping board. If you don't have one, you could use a piece of very sturdy cardboard. It needs to be about 14–15 cm wide and as long as your oven (mine is longer, as I have a Rofco oven). Then score 3 times diagonally Day 3, 4.30–6pm
Preheat oven to 230°C/450°F. Drop down to 200°C/400°F to bake. Add a tray of water to the oven to create steam as the baguettes go in. Bake.Day 3, 6pm
Analyse & Recalibrate On eating

sourdough

FranceMorris NadaillacSourdough-France

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 acknowledged as one of the world’s foremost authorities on bread and human health — the first person to hold a doctorate in Baking as Lifestyle Medicine and Preventative Healthcare, and the pioneer who, long before gut health became a mainstream concern, first identified the crucial role bread plays in the gut microbiome and mental wellbeing. A fourth-generation baker of Italian descent, she has been baking sourdough since the age of 11, served her traditional apprenticeship in the Dordogne, and is a time-served, French-trained qualified baker who has worked alongside some of the world’s greatest bakers including Richard Hart and Gabriele Bonci. She has spent four decades asking the questions the food industry preferred no one asked: why was industrial mono bread slowly harming us, and what would it take to make bread that genuinely nourishes?

The answer became her life’s work. As founder and Course Director of The Sourdough School in Northamptonshire — a world-renowned centre of research and education — she has taught bakers from over 84 countries, integrated the BALM (Baking as Lifestyle Medicine) Protocol into NHS clinical practice at Bethlem Royal Hospital, and developed Proven Bread: the first bread built on clinical evidence, personalised to the individual through nutrigenetics and gut microbiome assessment. She delivered the Royal College of General Practitioners‘ approved course in the Nutrition of Bread, has been a regular contributor to BBC Radio 4’s Food Programme for many years, and collaborates with leading scientists and clinicians including Professor Tim Spector — who credits her with teaching people to make the healthiest bread in the world — and Professor David Veale. Named the Sourdough Queen by The Telegraph in 2013, her influence reaches far beyond the classroom — from artisan bakers and healthcare professionals to the world’s leading food scientists and multinational food corporations.

A bestselling international author of five books, her sixth — Proven — publishes in November 2026.

More information about Vanessa can be found at
The Sourdough School,
The Sourdough Club,
on Instagram at @SourdoughClub,
@SourdoughSchool and
@vanessakimbell,
on Facebook and
LinkedIn.

Previous Post:My Mincemeat Focaccia Recipe
Next Post:What is Sourdough? The Complete Guide to Real Sourdough BreadA person with dark, curly hair and a nose ring holds up a thick slice of freshly baked bread in front of their face, smiling slightly. They are wearing a black tank top and a cardigan, with flour marks on their skin, suggesting they've been baking. The background shows a cozy kitchen with rustic elements. The bread has a golden-brown crust and visible air pockets in the soft interior.

Reader Interactions

Comments

  1. Hermione Prousaef

    28 February 2022 at 9:31 am

    Hello Vanessa!
    I in the sourdough school book in page 181 that i can make the baguettes with both retarded and ambient method!
    I want to make them using the retarded method but in the book again in page 181 you said that once the bulk fermantation has finished you need to cover the dough with a damp cloth and leave overnight in the fridge and then you say bake them around 10 to 10.30.
    When should i shape them in a baguette and leave them to ferment?
    Thank you!

    Reply
    • Sophie Remer

      2 March 2022 at 2:31 am

      Hi Hermione. You can see more about using the retarded method for the baguette in the “Advice” column on page 177. For the retarded baguette, you would pop the bowl of dough in the fridge overnight, and then shape them in the morning, giving them a final ambient rise for about 1 1/2 hours.

      Reply
      • Hermione Prousaef

        20 March 2022 at 6:10 am

        Thank you very much.

        Reply
  2. SUE LEWIS

    29 December 2020 at 11:02 pm

    Hello all, can you tell me if you heat up the oblong cloche first before you transfer the loaf from the couche please?
    Many thanks,
    Sue

    Reply
  3. Miss Yasmin

    24 November 2020 at 11:29 am

    Hi! Would you be able to retard the dough overnight after the bulk ends? Then shape and proof the following morning? I’m also struggling with scoring warm ambient dough! Do you have any suggestions? Thank you!

    Reply
    • Vanessa Kimbell

      24 November 2020 at 3:40 pm

      Hi – here are some tips: https://thesourdoughclub.com/my-top-tips-to-bake-great-baguettes/ but it does take a lot of practice. We know this recipe works and sorry we don’t have a retarded baguette recipe up yet. With your scoring ambient doug you can always put the ambient dough in the fridge for about 20-30 minutes before scopring and baking.

      Reply
  4. Caroline McConnell

    3 June 2020 at 9:38 pm

    Question for you, it says only use malt if using Canadian flour… at least thats how my brain is reading it. So in Canada with me buying the flour in canada does that mean I should be sure to get and use malt?

    Reply
    • Vanessa Kimbell

      14 June 2020 at 9:49 am

      Hi Caroline,

      It’s really about enzymes.
      Flour contains a very small amount of sugar, about 1 -2 % which is not enough to make dough rise, but the starch in flour is the source of the most of the sugar for fermentation. Starch is a more stable way for a plant to store energy so to be used to feed an emerging plant must be broken down into sugar .. and it is this breakdown and availability of simple sugars that helps sourdough to ferment.

      This breakdown is the work of enzymes. In certain wholegrain flour, there are enough enzymes to do this. Often this is related to the maritime environment. Fog, and damp weather is a great place for enzymes to be in the grain. in my experience the Canadian flours are grown in dry conditions, no prairies and the flour has low enzymes. so the malt give the flour a boost too then get the bacteria going .. as they make their own ..

      So .. sometimes the mill will add amalayse and you don’t need to and sometimes you find that the mill doesn’t so your ferment is slow. Look in the side of the bag to see, although it not always clear and then experiment.

      Kind regards

      Vanessa

      Reply
  5. Carrie-Ann Smith

    29 May 2020 at 2:44 pm

    The recipe says 225g leaven but the leaven mix total is only 215g? Should it be 100g water, as well as flour in leaven or only 215g leaven in final recipe?

    And if I want to start these the day before, would I shape and then skip the final prove and put them straight into fridge to bake from cold in the morning?

    Thanks

    Reply
    • Vanessa Kimbell

      3 June 2020 at 12:05 pm

      hi – fixed this. Now says 215 on both. thank you for spotting this.

      Hi Carrie – sorry but I did mention in the newsletter that it would be later in the year before I do the retarded ones – please bear with me as I can only manageed one huge tutorial at a time!
      Vx

      Reply

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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?

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THE SOURDOUGH SCHOOL – HAND CARVED WOODEN LAME On 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.

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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.” 

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