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Best Sourdough Flour of 2026
Last updated on 04/04/2026
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1
Marriage’s Millers Manitoba Very Strong White Bread Flour – 16kg | High-Protein Canadian Wheat Flour | Ideal for Bread, Pizza & Artisan Baking
Generic
Why we love it
Professional quality for serious bakers.
Consistent results from expert millers.
Ideal for artisan bread recipes.
Main Highlights
Specially milled for professional bakers and passionate home bakers, this 16kg bulk bag is perfect for those who bake frequently or require a reliable, high-performance flour in large quantities.
With a heritage of over 200 years of milling expertise, Marriage’s Millers ensures consistent quality, making it a trusted choice for bakeries, restaurants, and home kitchens.
High-Protein Manitoba Flour – Made from premium Canadian wheat, with very high gluten content for superior baking results.
Perfect for Breadmaking – Designed for strong doughs, producing light, airy loaves with excellent rise and structure
Artisan Baking Quality – Ideal for sourdough, pizza bases, focaccia, baguettes, and other rustic breads.
Very Strong White Flour – Extra strength ensures elasticity, volume, and consistency in baking
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9.7
Exceptional
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9.7
Exceptional
Generic
Marriage’s Millers Manitoba Very Strong White Bread Flour – 16kg | High-Protein Canadian Wheat Flour | Ideal for Bread, Pizza & Artisan Baking
Check Price
Show More
Why we love it
Professional quality for serious bakers.
Consistent results from expert millers.
Ideal for artisan bread recipes.
Main Highlights
Specially milled for professional bakers and passionate home bakers, this 16kg bulk bag is perfect for those who bake frequently or require a reliable, high-performance flour in large quantities.
With a heritage of over 200 years of milling expertise, Marriage’s Millers ensures consistent quality, making it a trusted choice for bakeries, restaurants, and home kitchens.
High-Protein Manitoba Flour – Made from premium Canadian wheat, with very high gluten content for superior baking results.
Perfect for Breadmaking – Designed for strong doughs, producing light, airy loaves with excellent rise and structure
Artisan Baking Quality – Ideal for sourdough, pizza bases, focaccia, baguettes, and other rustic breads.
Very Strong White Flour – Extra strength ensures elasticity, volume, and consistency in baking
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Value for Money
2
W & H Marriage & Son 100% Canadian Very Strong White Flour 1.5kg (Pack of 5)
Marriage's
Why we love it
Milled from strong organic wheat.
Ideal for bread machines.
Consistent high quality ensured.
Main Highlights
Our White Bread Flour is milled from strong hard organic whea
ideal for use in bread machines and ovens
Allergy Advice: For allergens see highlighted ingredients Flour (Wheat Flour, Calcium, Iron, Niacin, Thiamin)
his makes the best bread I've ever done. Quality is excellent. Very consistent
Contains twenty tea bags with a string & tag.
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9.5
Superb
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9.5
Superb
Marriage's
W & H Marriage & Son 100% Canadian Very Strong White Flour 1.5kg (Pack of 5)
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Why we love it
Milled from strong organic wheat.
Ideal for bread machines.
Consistent high quality ensured.
Main Highlights
Our White Bread Flour is milled from strong hard organic whea
ideal for use in bread machines and ovens
Allergy Advice: For allergens see highlighted ingredients Flour (Wheat Flour, Calcium, Iron, Niacin, Thiamin)
his makes the best bread I've ever done. Quality is excellent. Very consistent
Contains twenty tea bags with a string & tag.
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3
Marriages Very Strong 100% Canadian White Flour - Pack Size = 5x1.5kg
Marriage's
6% Off
Main Highlights
Ideal for bread making and pasta
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9.4
Superb
Check Price
9.4
Superb
Marriage's
Marriages Very Strong 100% Canadian White Flour - Pack Size = 5x1.5kg
6% Off
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Main Highlights
Ideal for bread making and pasta
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4
W & H Marriage & Son Finest Strong (White) Breadmaking Flour 1.5kg (Pack of 5)
W & H Marriage & Son
27% Off
Why we love it
Promises superior strength and quality.
Ideal for diverse baking needs.
Optimized for bread machines.
Main Highlights
Finest Strong White Bread Flour
High Protein For Bread , Rolls , Pizza & Puff Pastry
Suitable for Bread Machine
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9.4
Superb
Check Price
9.4
Superb
W & H Marriage & Son
W & H Marriage & Son Finest Strong (White) Breadmaking Flour 1.5kg (Pack of 5)
27% Off
Check Price
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Why we love it
Promises superior strength and quality.
Ideal for diverse baking needs.
Optimized for bread machines.
Main Highlights
Finest Strong White Bread Flour
High Protein For Bread , Rolls , Pizza & Puff Pastry
Suitable for Bread Machine
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5
Matthews Cotswold Organic Strong White Flour | Baker's Grade High Protein Bread Flour | Specialty | Artisanal | Milled In Britain (1.5kg Bag (Single Bag))
MATTHEWS COTSWOLD FLOUR
Why we love it
Organic and made sustainably.
Perfect for artisan bread.
Great for long fermentation.
Main Highlights
ORGANIC STRONG WHITE. A baker’s grade strong white Organic flour, suitable for bread rolls and also multipurpose. Premium organic strong white bread flour. Milled in the Cotswolds from carefully selected, high protein, certified organic wheat. Perfect for Organic bread and sourdough recipes. Suits long fermentation and is great for making enriched doughs with a soft crumb.
MILLING & PROVENANCE. Matthews have supported organic farming for over 30 years. Baking with organic flour means you have chosen to support nature, protect the environment and promote sustainable farming. Carefully selected Organic wheat is separated from every stage of the process to ensure its certification as Organic. Free from enhances and other additives.
PERFECT FOR. Matthews Organic Strong White is perfect for artisan bread, sourdough base flour, sourdough starter, pizza dough, buns, flat breads, dinner rolls, sandwiches, white bread, bagels and any other bread recipes.
TOP TIP. 1: For yeasted breads select the right yeast fast acting is best for bread machines. 2: Use a digital scale. 3: Don’t over or under knead you should be able to stretch your dough 2 to 4 inches without breaking it apart. 4: Use the poke test, if after a poke there is a small indentation and very slow spring back you're on to a winner.
DID YOU KNOW. Matthews have supported organic farming for over 30 years. Baking with Organic flour means you have chosen to support nature, protect the environment and promote sustainable farming.
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9.2
Superb
Check Price
9.2
Superb
MATTHEWS COTSWOLD FLOUR
Matthews Cotswold Organic Strong White Flour | Baker's Grade High Protein Bread Flour | Specialty | Artisanal | Milled In Britain (1.5kg Bag (Single Bag))
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Why we love it
Organic and made sustainably.
Perfect for artisan bread.
Great for long fermentation.
Main Highlights
ORGANIC STRONG WHITE. A baker’s grade strong white Organic flour, suitable for bread rolls and also multipurpose. Premium organic strong white bread flour. Milled in the Cotswolds from carefully selected, high protein, certified organic wheat. Perfect for Organic bread and sourdough recipes. Suits long fermentation and is great for making enriched doughs with a soft crumb.
MILLING & PROVENANCE. Matthews have supported organic farming for over 30 years. Baking with organic flour means you have chosen to support nature, protect the environment and promote sustainable farming. Carefully selected Organic wheat is separated from every stage of the process to ensure its certification as Organic. Free from enhances and other additives.
PERFECT FOR. Matthews Organic Strong White is perfect for artisan bread, sourdough base flour, sourdough starter, pizza dough, buns, flat breads, dinner rolls, sandwiches, white bread, bagels and any other bread recipes.
TOP TIP. 1: For yeasted breads select the right yeast fast acting is best for bread machines. 2: Use a digital scale. 3: Don’t over or under knead you should be able to stretch your dough 2 to 4 inches without breaking it apart. 4: Use the poke test, if after a poke there is a small indentation and very slow spring back you're on to a winner.
DID YOU KNOW. Matthews have supported organic farming for over 30 years. Baking with Organic flour means you have chosen to support nature, protect the environment and promote sustainable farming.
Show More
6
Matthews Cotswold Churchill Premium White Bread Flour | Strong High Protein Bread Flour | Specialty | Artisanal | Milled In Britain | 1.5kg Bag (Single Bag)
MATTHEWS COTSWOLD FLOUR
Why we love it
High protein supports bread rise.
Locally sourced premium quality wheat.
Ideal for various bread recipes.
Main Highlights
CHURCHILL PREMIUM WHITE BREAD FLOUR. Is a strong high protein bread flour. Finely milled from a blend of high protein hard wheat sourced between Cotswold village of Churchill and Blenheim palace. Encourages beautiful gluten development and easy kneading and shaping. This flour contains a 12.8% protein which supports the rise and structure of your bread. Perfect for hand and bread machines. Blend with Stoneground wholegrain flour for a richer more complex flavour.
MILLING & PROVENANCE. The wheat to make Churchill needs to be of high protein strength to ensure its consistency when baking. We test all of the wheat before accepting any load into the mill. Each load is collected from one of our local Cotswold Grain Partnership farmers by Matthews and delivered direct to the mill. During harvest this can mean literally driving straight onto the field and down the hill to the Cotswold mill. The wheat is stored in our 100-year-old pine grain silos before being finely roller milled into a pure consistent strong white bread flour for home baking or professional artisan bakers around the UK.
PERFECT FOR. All bread recipes, sourdough bread recipes, sourdough starter, artisan bread recipes, bagels, no-knead bread, white bread.
TOP TIP. 1: Ask your local Artisan baker for a bit of their sourdough starter. 2: Follow a formula of a sourdough baker like Elaine Boddy. 3: Don’t forget to feed your starter. 4: Shape your loaves properly on a large work surface, rotate 90 degrees and pull back to yourself. Try not to shape to tightly as it will lose its structure. 5: Don’t over ferment your dough to the point where it becomes wet and sticky. If you find this reduce your fermentation time. 6: For improved taste, structure, flexibility and a slower rise refrigerated proofing can work wonders. Be sure the dough is in a airtight container.
DID YOU KNOW. The flour is named “Churchill” as the wheat comes from the area between the village of Churchill 4 miles to our west and Blenheim palace 10 miles to our east once home to the great Winston Churchill. In between sits a new farmer called Jeremy who supplies some very strong high protein bread wheat we used in the grist for this Churchill strong white flour seen on “Clarkson’s Farm”. This flour is then used to make sourdough bread in the mill, surrounding local bakeries. This flour is chosen as the number 1 flour for sourdough baking by Cotswold master bakers around the country.
Show More
9.2
Superb
Check Price
9.2
Superb
MATTHEWS COTSWOLD FLOUR
Matthews Cotswold Churchill Premium White Bread Flour | Strong High Protein Bread Flour | Specialty | Artisanal | Milled In Britain | 1.5kg Bag (Single Bag)
Check Price
Show More
Why we love it
High protein supports bread rise.
Locally sourced premium quality wheat.
Ideal for various bread recipes.
Main Highlights
CHURCHILL PREMIUM WHITE BREAD FLOUR. Is a strong high protein bread flour. Finely milled from a blend of high protein hard wheat sourced between Cotswold village of Churchill and Blenheim palace. Encourages beautiful gluten development and easy kneading and shaping. This flour contains a 12.8% protein which supports the rise and structure of your bread. Perfect for hand and bread machines. Blend with Stoneground wholegrain flour for a richer more complex flavour.
MILLING & PROVENANCE. The wheat to make Churchill needs to be of high protein strength to ensure its consistency when baking. We test all of the wheat before accepting any load into the mill. Each load is collected from one of our local Cotswold Grain Partnership farmers by Matthews and delivered direct to the mill. During harvest this can mean literally driving straight onto the field and down the hill to the Cotswold mill. The wheat is stored in our 100-year-old pine grain silos before being finely roller milled into a pure consistent strong white bread flour for home baking or professional artisan bakers around the UK.
PERFECT FOR. All bread recipes, sourdough bread recipes, sourdough starter, artisan bread recipes, bagels, no-knead bread, white bread.
TOP TIP. 1: Ask your local Artisan baker for a bit of their sourdough starter. 2: Follow a formula of a sourdough baker like Elaine Boddy. 3: Don’t forget to feed your starter. 4: Shape your loaves properly on a large work surface, rotate 90 degrees and pull back to yourself. Try not to shape to tightly as it will lose its structure. 5: Don’t over ferment your dough to the point where it becomes wet and sticky. If you find this reduce your fermentation time. 6: For improved taste, structure, flexibility and a slower rise refrigerated proofing can work wonders. Be sure the dough is in a airtight container.
DID YOU KNOW. The flour is named “Churchill” as the wheat comes from the area between the village of Churchill 4 miles to our west and Blenheim palace 10 miles to our east once home to the great Winston Churchill. In between sits a new farmer called Jeremy who supplies some very strong high protein bread wheat we used in the grist for this Churchill strong white flour seen on “Clarkson’s Farm”. This flour is then used to make sourdough bread in the mill, surrounding local bakeries. This flour is chosen as the number 1 flour for sourdough baking by Cotswold master bakers around the country.
Show More
7
Shipton Mill Strong White Bread Flour 1kg - High-Protein Flour for Artisan Bread, Rolls & Sourdough - Milled from The Finest Wheat for A Superior Rise & Texture
Generic
Why we love it
Perfect for artisan bread baking.
Crafted from premium English wheat.
Strong gluten for excellent elasticity.
Main Highlights
High-Protein Bread Flour for Perfect Baking – Designed for artisan bread, sourdough, baguettes, and rolls, this premium flour delivers a superior rise, chewy texture, and crisp crust for homemade and bakery-quality results.
Milled from the Finest English Wheat – Crafted using traditional techniques to ensure rich flavor, excellent gluten development, and a robust dough structure. Ideal for bread-making enthusiasts and professional bakers alike.
Strong Gluten Content for Superior Elasticity – The high gluten level in this flour creates the perfect balance of stretch and strength, making it easier to knead, shape, and bake consistently great bread every time.
Vegan & Vegetarian Friendly – Completely free from animal products, this flour is suitable for a range of dietary preferences, making it a great choice for ethical and plant-based bakers.
Easy to Store & Use – Keep in a cool, dry, airtight container to maintain freshness. Perfect for all types of bread, including sourdough starters, pizza dough, ciabatta, and rustic loaves.
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9.0
Superb
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9.0
Superb
Generic
Shipton Mill Strong White Bread Flour 1kg - High-Protein Flour for Artisan Bread, Rolls & Sourdough - Milled from The Finest Wheat for A Superior Rise & Texture
Check Price
Show More
Why we love it
Perfect for artisan bread baking.
Crafted from premium English wheat.
Strong gluten for excellent elasticity.
Main Highlights
High-Protein Bread Flour for Perfect Baking – Designed for artisan bread, sourdough, baguettes, and rolls, this premium flour delivers a superior rise, chewy texture, and crisp crust for homemade and bakery-quality results.
Milled from the Finest English Wheat – Crafted using traditional techniques to ensure rich flavor, excellent gluten development, and a robust dough structure. Ideal for bread-making enthusiasts and professional bakers alike.
Strong Gluten Content for Superior Elasticity – The high gluten level in this flour creates the perfect balance of stretch and strength, making it easier to knead, shape, and bake consistently great bread every time.
Vegan & Vegetarian Friendly – Completely free from animal products, this flour is suitable for a range of dietary preferences, making it a great choice for ethical and plant-based bakers.
Easy to Store & Use – Keep in a cool, dry, airtight container to maintain freshness. Perfect for all types of bread, including sourdough starters, pizza dough, ciabatta, and rustic loaves.
Show More
8
Marriages Finest Strong White Bread Flour, 1.5kg (Pack of 3)
Hot Shot Tools
8.8
Excellent
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8.8
Excellent
Hot Shot Tools
Marriages Finest Strong White Bread Flour, 1.5kg (Pack of 3)
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9
Certified Organic Live Sourdough Starter, Very Old and Mature - 46 year old Lake District Starter, Bread Starter - 80g for all types of flour with printed instruction by Kombuchaorganic®
Kombuchaorganic
5% Off
Why we love it
Certified Organic for healthy baking.
Vintage 44-year Lake District starter.
BPA-free, eco-friendly packaging.
Main Highlights
We are leading supplier of sourdough to bakers/trade. What we have here is very old and mature (this is a live starter - not freeze dried cheap starter which will likely fail) - 45 year old Lake District Sourdough Starter- Can be used with ANY TYPE OF FLOUR (not gluten free).
No activation needed - Fed daily and made fresh to order using traditionally crafted ORGANIC stone ground rye flour from Shipton Mill (certified Organic Flour).
Certified ORGANIC and QUALITY ASSURED and tested by UKAS LAB (ALS Global) 80g Organic Starter with FULL PRINTED INSTRUCTION - more than enough for your base.
Manufactured in our specialist unit with love and care. Perfect for Artisan Breads, Rye Breads, Spelt Breads, Wheat Breads, Pizza.
Started in 1979 in one of the Lake District Organic small bakers - one purchase is a supply for life!
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8.7
Excellent
Check Price
8.7
Excellent
Kombuchaorganic
Certified Organic Live Sourdough Starter, Very Old and Mature - 46 year old Lake District Starter, Bread Starter - 80g for all types of flour with printed instruction by Kombuchaorganic®
5% Off
Check Price
Show More
Why we love it
Certified Organic for healthy baking.
Vintage 44-year Lake District starter.
BPA-free, eco-friendly packaging.
Main Highlights
We are leading supplier of sourdough to bakers/trade. What we have here is very old and mature (this is a live starter - not freeze dried cheap starter which will likely fail) - 45 year old Lake District Sourdough Starter- Can be used with ANY TYPE OF FLOUR (not gluten free).
No activation needed - Fed daily and made fresh to order using traditionally crafted ORGANIC stone ground rye flour from Shipton Mill (certified Organic Flour).
Certified ORGANIC and QUALITY ASSURED and tested by UKAS LAB (ALS Global) 80g Organic Starter with FULL PRINTED INSTRUCTION - more than enough for your base.
Manufactured in our specialist unit with love and care. Perfect for Artisan Breads, Rye Breads, Spelt Breads, Wheat Breads, Pizza.
Started in 1979 in one of the Lake District Organic small bakers - one purchase is a supply for life!
Show More
10
Dehydrated Sourdough Starter San Francisco Sourdough Culture for Artisan Bread, 24 Hour Activation, Easy Kit for Beginners, 15 g Dried Sourdough Starter Packet
Dough Dough at home
Why we love it
Ready to bake in 24 hours.
Authentic San Francisco style flavor.
Perfect for all skill levels.
Main Highlights
FAST 24 HOUR ACTIVATION - Specially prepared sourdough starter culture hydrates quickly so you can go from first feeding to baking a tangy loaf in around one day, ideal for busy home bakers who want real fermented flavor with minimal waiting and maximum satisfaction
CONSISTENT ARTISAN RESULTS - Carefully balanced sourdough starter for baking produces a mild tang, rich aroma, and open crumb that echo classic San Francisco sourdough, helping you turn simple pantry ingredients into bakery style loaves in a standard home oven, again and again
EASY FOR NEW BAKERS - Step by step instructions turn this sourdough bread starter into a simple project, explaining each feeding, rise, and bake so beginners gain confidence while experienced bakers enjoy a reliable, low stress way to keep dough ready for fresh bread on their schedule
4 LONG LASTING CULTURE - Once established, this active sourdough starter can be maintained with straightforward flour and water feedings, giving you a reusable supply for loaves, pizza, pancakes, and more, so one small packet supports months of creative baking and reduces food waste
TRAVEL FRIENDLY AND GIFT READY - Compact 15 g dried sourdough starter arrives sealed for shelf stable storage, perfect to pack for holidays, share with friends, or tuck into a bread making gift set so delicious homemade loaves are always within reach in any kitchen you visit
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8.7
Excellent
Check Price
8.7
Excellent
Dough Dough at home
Dehydrated Sourdough Starter San Francisco Sourdough Culture for Artisan Bread, 24 Hour Activation, Easy Kit for Beginners, 15 g Dried Sourdough Starter Packet
Check Price
Show More
Why we love it
Ready to bake in 24 hours.
Authentic San Francisco style flavor.
Perfect for all skill levels.
Main Highlights
FAST 24 HOUR ACTIVATION - Specially prepared sourdough starter culture hydrates quickly so you can go from first feeding to baking a tangy loaf in around one day, ideal for busy home bakers who want real fermented flavor with minimal waiting and maximum satisfaction
CONSISTENT ARTISAN RESULTS - Carefully balanced sourdough starter for baking produces a mild tang, rich aroma, and open crumb that echo classic San Francisco sourdough, helping you turn simple pantry ingredients into bakery style loaves in a standard home oven, again and again
EASY FOR NEW BAKERS - Step by step instructions turn this sourdough bread starter into a simple project, explaining each feeding, rise, and bake so beginners gain confidence while experienced bakers enjoy a reliable, low stress way to keep dough ready for fresh bread on their schedule
4 LONG LASTING CULTURE - Once established, this active sourdough starter can be maintained with straightforward flour and water feedings, giving you a reusable supply for loaves, pizza, pancakes, and more, so one small packet supports months of creative baking and reduces food waste
TRAVEL FRIENDLY AND GIFT READY - Compact 15 g dried sourdough starter arrives sealed for shelf stable storage, perfect to pack for holidays, share with friends, or tuck into a bread making gift set so delicious homemade loaves are always within reach in any kitchen you visit
Show More
