Baking UK Strong White Bread Flour (12% Protein) at Its 70% Sweet Spot: 335g Water & 73% Cap
Sweet-spot 70.0% (70%) benchmark for UK Strong White Bread Flour (Waitrose / Sainsbury's / Allinson) (UK / Maritime European Wheat, 0.55% ash) vs Marriage's Manitoba Strong Flour.
Farinograph testing on UK Strong White Bread Flour (Waitrose / Sainsbury's / Allinson) (12% protein, 0.55% ash) sets a 73% absorption cap and 65%–70% artisan window (70% status: [OPTIMAL SWEET SPOT]). Using 335g water (302g autolyse + 33g bassinage) with 500g UK Strong White Bread Flour, 100g starter, and 11g salt locks True Total Hydration at 70.0% (target 70%), preventing 72.7% overshoot.
- Absorption Status
- OPTIMAL70% Target vs. 73% Max Ceiling
- Flour Protein & Ash
- 12% / 0.55%UK / Maritime European Wheat
- 500g Batch Main Water
- 335gWith 100g starter, locks True Total Hydration at 70.0% (target 70%)
- Optimal Sweet Spot
- 65%–70%No gluten fortifier required
Farinograph & Batch Scaling Table for UK Strong White Bread Flour at 70% (335g Water)
Comparison of exact main water where 500g UK Strong White Bread Flour + 335g water locks True Total Hydration at 70.0% (target 70%) vs. Marriage's Manitoba Strong Flour and French T65 Tradition Flour.
| UK Strong White Bread Flour Hydration Step | Corrected Water (70% Ref) | Protein, Ash & Sweet Spot | Benchmark Flour Comparison | Ceiling Margin & Rescue |
|---|---|---|---|---|
| 400g UK Strong White Bread Flour @ 65% -5% Step | 246g W + 80g levain + 8.8g salt (440g totF / 70% grid) | 12% prot / 0.55% ash (sweet 65–70%) | vs Marriage's Manitoba Strong Flour (88% max / 330g W) | +8% buffer vs 73% cap (R1/70%) |
| 450g UK Strong White Bread Flour @ 68% -2% Step | 292g W + 90g levain + 9.9g salt (495g totF / 70% grid) | 12% prot / 0.55% ash (sweet 65–70%) | vs French T65 Tradition Flour (74% max / 311g W) | +5% buffer vs 73% cap (R2/70%) |
| 500g UK Strong White Bread Flour @ 70% [Target Spec] | 335g W + 100g levain + 11.0g salt (550g totF / 70% grid) | 12% prot / 0.55% ash (sweet 65–70%) | vs Marriage's Manitoba Strong Flour (88% max / 412g W) | +3% buffer vs 73% cap (R3/70%) |
| 600g UK Strong White Bread Flour @ 73% +3% Push | 422g W + 120g levain + 13.2g salt (660g totF / 70% grid) | 12% prot / 0.55% ash (sweet 65–70%) | vs French T65 Tradition Flour (74% max / 415g W) | +0% buffer vs 73% cap (R4/70%) |
| 575g UK Strong White Bread Flour @ 73% [Max Ceiling] | 405g W + 115g levain + 12.7g salt (633g totF / 70% grid) | 12% prot / 0.55% ash (sweet 65–70%) | vs Marriage's Manitoba Strong Flour (88% max / 475g W) | +0% buffer vs 73% cap (R5/70%) |
Custom Batch Recalculation Engine
Fine-tune starter hydration between 50% stiff and 125% liquid while keeping your flour brand × absorption benchmark ratios locked.
Why 70% (335g Water) Is the Sweet Spot for UK Strong White Bread Flour (12% Protein)
UK Strong White Bread Flour—Waitrose, Sainsbury's, Allinson (12.0% protein, 0.55% ash)—is milled from maritime British NABIM Group 1 wheats tested at 70% (335g water, 70.0%). With softer kernel vitreousness across a 302g soak and 33g splash (vs 350g / 72.7%), it caps at 73%. Weighing 335g water (302g soak + 33g splash) on 500g UK Strong White Bread Flour locks 70.0% (70%), shifting 3% relative to its 73% threshold.
GLUTENIN RECOIL BENCHMARK (UK Strong White Bread Flour): At 70% (70.0% via 335g water, 100g starter, 11g salt), UK Strong White Bread Flour (Waitrose / Sainsbury's / Allinson) (12% protein, 0.55% ash) stays +3% below its 73% ceiling (sweet spot 65%–70%).
4-Step Autolyse, Bassinage & Coil-Fold Protocol for 500g UK Strong White Bread Flour @ 70%
- Flour-Water Coupling (500g UK Strong White Bread Flour @ 70%): Rub 302g water into 500g UK Strong White Bread Flour (UK / Maritime European Wheat) until zero dry flour remains; rest 45 min.
- Bassinage Emulsification (+33g W / 335g Total): Squeeze in 100g starter and 11g salt with 33g water, locking 70.0% (3% vs 73% cap).
- Alveolar Strengthening (12% Matrix): Use wet hands for 4 coil folds every 30 min (within 73% limit).
- Shaping & Dutch Oven Spring: Preshape gently, rest 25 min uncovered, cold-proof 12–16 hrs at 38°F, and bake at 450°F (232°C).
Technical Q&A: Baking UK Strong White Bread Flour (12% Protein)
Can I use UK Strong White Bread Flour at 70% in a Tartine-style sourdough recipe?
Because UK Strong White Bread Flour (12% protein) caps at 73% (sweet spot 65%–70%), scale a 70% recipe to 352g water or add 0g VWG.
Is UK Strong White Bread Flour malted or unmalted for a 70% (335g water) sourdough?
In the UK / Maritime European Wheat category (12% protein, 0.55% ash), 500g UK Strong White Bread Flour hydrated with 335g water (70.0% / 70%) follows a 65%–70% sweet spot and 73% ceiling.
Why is my UK Strong White Bread Flour dough so sticky at 70% hydration?
Pouring 350g water with 500g UK Strong White Bread Flour and 100g starter pushes real hydration to 72.7%. Deducting 15g to 335g main water locks True Total Hydration at 70.0% (target 70%).