450g Flour at 65% Low-Hydration Sourdough: 277g Water, 90g Starter & 9.9g Salt (1 Standard Loaf)
Stiff 65% formula for 450g flour (827g dough, 1 standard loaf), deducting 16g starter water from 293g.
Because 90g of 100% levain supplies 45g water and 45g flour to 450g main flour (495g system flour), adding 293g water spikes dough hydration to 68.3% (+3.3%). Using 277g water (249g + 28g) and 9.9g salt (827g yield) locks True Total Hydration at 65.05% (target 65%).
- Strict True Hydration Water
- 277gLocks True Total Hydration at 65.05% (target 65%, -16g)
- Unadjusted Apparent Water
- 293gPushes True Hydration to 68.3% (+3.3% surge)
- 20% Active Starter & Salt
- 90g / 9.9g45g hidden flour + 45g hidden water
- Stickiness & Rheology
- 1 / 5 StarsBeginner Friendly (Low extensibility)
True (65.05%) vs Apparent (68.3%) Matrix for 450g Flour
System flour (495g) and total water (322g) mass-balance rows around 450g flour at 65% (65.05%).
| Batch & Seed Spec | Flour Breakdown | Levain Split | Corrected Water (65% Ref) | Salt & Dough Mass | Apparent vs Locked |
|---|---|---|---|---|---|
| 400g @ 63% (15% Seed) Lean Seed (-50g) | 400g + 30g = 430g (65%/450g ref) | 60g (30gF/30gW @ 100%) | 241g W (vs 252g app @ R1) | 8.6g salt (701g dough) | 65.6% drift → 63.02% (63% goal) |
| 450g @ 63% (18% Seed) Low Inoc (-2% Hyd) | 450g + 45g = 495g (65%/450g ref) | 81g (45gF/36gW @ 80%) | 276g W (vs 284g app @ R2) | 9.9g salt (807g dough) | 64.6% drift → 63.03% (63% goal) |
| 450g @ 65% (20% Seed) [Target Baseline] | 450g + 45g = 495g (65%/450g ref) | 90g (45gF/45gW @ 100%) | 277g W (vs 293g app @ R3) | 9.9g salt (817g dough) | 68.3% drift → 65.05% (65% goal) |
| 450g @ 67% (22% Seed) High Inoc (+2% Hyd) | 450g + 50g = 500g (65%/450g ref) | 99g (50gF/49gW @ 100%) | 286g W (vs 302g app @ R4) | 10.0g salt (835g dough) | 70.2% drift → 67.0% (67% goal) |
| 500g @ 67% (25% Seed) Scaled Batch (+50g) | 500g + 56g = 556g (65%/450g ref) | 125g (56gF/69gW @ 125%) | 304g W (vs 335g app @ R5) | 11.1g salt (929g dough) | 72.7% drift → 67.09% (67% goal) |
Real-Time Dough & Starter Scaling Sandbox
Scale this Stiff 65% Low-Hydration Sourdough Re specification up or down on your digital scale with zero hydration drift.
Why 65% Low-Hydration Sourdough (450g Flour / 277g Water) Holds Spring
Precision scaling for a 827g (1 Standard Loaf) bake starts with 495g system flour (450g main + 45g levain). Instead of pouring 293g water (68.3% actual), deducting 16g to 277g main water (249g + 28g) and 9.9g salt locks True Total Hydration at 65.05% (target 65%).
Rated 1/5 for surface tack (Beginner Friendly), a 450g batch mixed with 277g corrected water and 9.9g salt (2.0% of 495g total flour) shows low alveolar stretch. Trickling 28g bassinage water after a 249g rest stabilizes the 65.05% (65%) gluten film.
Double-Hydration (249g + 28g) Mixing Steps on 450g Flour
- Initial Water Binding (249g W on 450g F): Hydrate 450g flour using 249g water (leaving 28g for stage 2 of 277g) for 45 min.
- Levain & Salinity Lock (90g Starter + 9.9g Salt): Fold in 90g 100% starter and 9.9g salt with 28g water, avoiding 293g (68.3%) drift.
- Fold Cadence for 65% (1/5 Stickiness): Space 4 wet-hand tuck-and-folds across 2 hours to reinforce the 827g (495g flour) network.
- Final Proof & Oven Spring (1 Standard Loaf): Cut bulk at +50% aliquot rise, cold-retard at 38°F overnight, and steam-bake in heavy cast iron at 450°F.
Diagnostic Answers: Stiff 65% Low-Hydration Sourdough Recipe for
What is the true flour weight in a 450g flour + 90g starter dough at 65%?
Combining 450g main flour with 90g of 100% starter (45g flour + 45g water) yields 495g total system flour, paired with 322g total water (277g main + 45g starter) for 65.05% (65%).
Why does unadjusted 293g water cause a +3.3% surge on 450g flour at 65%?
Because 65% is below 100% starter hydration, 90g starter (45gW / 45gF) raises 293g water to 338g over 495g flour (68.3%). Cutting 16g to 277g locks 65.05%.
How much water do I need for 450g of flour at 65% hydration?
Multiplying 450g by 65% gives 293g apparent water, which drifts to 68.3% (+3.3%) with 90g starter. Weighing 277g main water (-16g cut) locks True Total Hydration at 65.05% (target 65%).