A strong organic white flour for loaves, rolls, pizza and puff pastry, milled from organic wheats selected for bread making. Works in a bread machine too. Certified by the Organic Food Federation, and a three-time Great Taste Award winner.
For sourdough
This is the flour we feed our own starter on. Our 30-year culture has been kept on it for years, so if you buy a starter from us and feed it this, nothing changes for it when it arrives.
At 13.4% protein it is a good all-round choice: strong enough for a standard sourdough loaf, and mild enough that the flavour comes from the ferment rather than the grain. If you want a wetter dough and a more open crumb, the Matthews 100% Canadian at 14.5% holds more water. For more flavour, blend in some stoneground wholemeal.
Folic acid
This flour is fortified with folic acid, which UK law requires in most white wheat flour. If you would rather bake without it, the regenerative stoneground strong white has none added, or see all our flour with no added folic acid.
Ingredients
Organic Flour (Organic Wheat Flour, Calcium, Iron, Niacin, Thiamin, Folic Acid).
May contain soya. For allergens see ingredients highlighted in bold.
Nutritional information (per 100g)
| Energy | 1481kJ / 349 kcal |
| Fat | 1.3g |
| of which saturates | 0.3g |
| Carbohydrate | 72.4g |
| of which sugars | 2.3g |
| Fibre | 2.9g |
| Protein | 13.4g |
| Salt | <0.01g |
Order by 2pm Monday to Friday and your order is dispatched the same day.
- Free UK delivery on orders over £50.
- Standard UK delivery: 1-2 working days.
- You will receive tracking by email as soon as your order is dispatched.
30-day returns. You have 30 days from receiving your item to request a return. Items must be unused, with tags, and in the original packaging.
- Approved refunds are issued to your original payment method within 10 business days.
- Return postage is paid by the customer unless the item is faulty or we sent the wrong item.
- Starter cultures, perishable goods, custom items, gift cards and sale items cannot be returned.
- To start a return, email support@sourdoughsupply.co.uk. Returns sent without approval cannot be accepted.
Which one is right for me?
Match the shape and size to what you bake. Everything else is finish.

- Weight
- 1kg
- Protein
- 13.4%
- Type
- Organic strong white
- Folic acid
- Added
- Best for
- All-round sourdough, and feeding a starter
- Certification
- Organic Food Federation

Tested in our kitchen
Every tool earns its place by baking with it first. If it does not, we do not stock it.
Posted same day
Order by 2pm Monday to Friday and it leaves our UK warehouse that day.
30-day returns
Unused and in its packaging, send it back within 30 days for a refund.
Real people on email
Stuck with a bake or a basket? Ask us. A baker replies, not a bot.
Chosen by bakers, for bakers
Sourdough Supply Co. is a small UK team of home bakers. Everything we stock is used in our own kitchens before it goes on the site, and if a tool does not earn its place, we do not sell it. Questions about your bake? Email us and a real person will reply.













