What can I use in place of all-purpose flour in the United Kingdom?
The recipe asks for America's all-purpose flour. On a shelf in the United Kingdom the closest designation is plain / soft flour — workable with adjustment. Below: the figures side by side, what changes in the bake, and the standards both come from.
Find the flour to buy
Say where the recipe is from and what it calls for, then where you shop. You get the designation to buy, the figures side by side, and what might change in your bake.
all-purpose flourCommon wheat
plain / soft flourCommon wheat
Workable with adjustmentWhere the figures come from
- Much weaker, about 2.0 pp less protein. Reduce water by 4–6 %, mix briefly, shorten the proof, expect a flatter and more tender result. Not a base for long-fermented bread.
- United Kingdom: protein itself is not regulated, so two bags of the same designation can vary significantly. Read the nutrition panel for the actual number.
Higher ash content More water absorbed, faster fermentation, more flavour. The bran particles can impair the gluten network. Mix gentler, ferment shorter.
Protein up More water needed, longer mixing, better gas retention and oven spring, chewier crumb. Wrong for sponge and shortcrust.
Grind coarser Slower hydration. The dough firms up over the first twenty minutes after mixing, as the water is absorbed.
Practical implications of these numbers
Higher ash content More water absorbed, faster fermentation, more flavour. The bran particles can impair the gluten network. Mix gentler, ferment shorter.
Protein up More water needed, longer mixing, better gas retention and oven spring, chewier crumb. Wrong for sponge and shortcrust.
Grind coarser Slower hydration. The dough firms up over the first twenty minutes after mixing, as the water is absorbed.
Other options
- strong white bread flour Limited as a substitute Ash / mineral content 0.50–0.65 % Protein 11.5–13.5 % Grind / particle size fine
- very strong white Limited as a substitute Ash / mineral content 0.50–0.68 % Protein 14.0–15.5 % Grind / particle size fine
- brown flour (~85 %) Limited as a substitute Ash / mineral content 0.90–1.30 % Protein 12.0–14.0 % Grind / particle size fine
The standards behind these figures
-
US
United States
- 21 CFR 137.105 — Flour Non-durum wheat, at least 98 % through a No. 70 sieve, moisture max 15 %, and ash capped at one twentieth of the protein plus 0.35 — a formula, not a band, which is why the US ash ranges here are market practice. Chlorine bleaching is permitted.
- 21 CFR 137.220 — Durum flour Durum wheat, at least 98 % through a No. 70 sieve, moisture max 15 %, and a flat ash ceiling of 1.5 % — the only US ash figure that is neither a formula nor tied to a coarse grade. No lower bound, so the floor here is market practice.
- 21 CFR 137.300 — Farina Non-durum wheat, ash max 0.6 %, passes a No. 20 sieve with at most 3 % through a No. 100.
- 21 CFR 137.320 — Semolina Durum, ash max 0.92 %, same sieve spec as farina — the two differ by wheat species and ash, not coarseness.
- 21 CFR 137.225 — Whole durum wheat flour Whole wheat flour milled from durum: the section fixes the sieve spec and moisture only and no ash figure at all, so the band here is market practice.
-
UK
United Kingdom
- Bread and Flour Regulations 1998, Schedule 1 Fortification only — calcium carbonate 235–390 mg/100 g, iron at least 1.65, thiamin 0.24, nicotinic acid 1.60. No grades, type numbers, ash, protein or granulation are defined anywhere, so every UK band here is market practice.