🍞SourdoughCalc
Hydration Γ— Flour Weight FormulaCalibrated Rheology Reference (Hydration Γ— Flour Weight Formula)

Country 74% Sourdough Formula for 300g Flour: 214g Water & 60g Levain (1 Small Boule)

True 73.94% vs 76.4% apparent breakdown for 300g flour (581g 1 small boule, -8g water cut).

Executive Baker's Math Summary (Hydration Γ— Flour Weight Formula)

To bake 300g flour at 74% without suffering a 76.4% (+2.4%) soupier dough from 222g water and 60g starter, subtract 8g water. Combining 214g main water, 30g+30g levain, and 6.6g salt (581g total) locks True Total Hydration at 73.94% (target 74%).

Strict True Hydration Water
214gLocks True Total Hydration at 73.94% (target 74%, -8g)
Unadjusted Apparent Water
222gPushes True Hydration to 76.4% (+2.4% surge)
20% Active Starter & Salt
60g / 6.6g30g hidden flour + 30g hidden water
Stickiness & Rheology
3 / 5 StarsModerate (High extensibility)

300g Flour at 74% Hydration: 2D Scale & Starter Sensitivity Matrix

Pre-computed gram weights around 300g main flour where 214g water locks True Total Hydration at 73.94% (target 74%).

Batch & Seed SpecFlour BreakdownLevain SplitCorrected Water (74% Ref)Salt & Dough MassApparent vs Locked
250g @ 72% (15% Seed) Compact Mix (-50g)250g + 19g = 269g (74%/300g ref)38g (19gF/19gW @ 100%)175g W (vs 180g app @ R1)5.4g salt (463g dough)74.0% drift β†’ 72.12% (72% goal)
300g @ 72% (18% Seed) Conservative Pour300g + 30g = 330g (74%/300g ref)54g (30gF/24gW @ 80%)214g W (vs 216g app @ R2)6.6g salt (568g dough)72.7% drift β†’ 72.12% (72% goal)
300g @ 74% (20% Seed) [Locked Benchmark]300g + 30g = 330g (74%/300g ref)60g (30gF/30gW @ 100%)214g W (vs 222g app @ R3)6.6g salt (574g dough)76.4% drift β†’ 73.94% (74% goal)
300g @ 76% (22% Seed) Open-Crumb Push300g + 33g = 333g (74%/300g ref)66g (33gF/33gW @ 100%)220g W (vs 228g app @ R4)6.7g salt (586g dough)78.4% drift β†’ 75.98% (76% goal)
350g @ 76% (25% Seed) Expanded Loaf (+50g)350g + 39g = 389g (74%/300g ref)88g (39gF/49gW @ 125%)247g W (vs 266g app @ R5)7.8g salt (685g dough)81.0% drift β†’ 76.09% (76% goal)

Custom Batch Recalculation Engine

Fine-tune starter hydration between 50% stiff and 125% liquid while keeping your hydration Γ— flour weight formula ratios locked.

Open Fullscreen Solver β†’
Strict True Hydration Water:
214g β€” Locks True Total Hydration at 73.94% (target 74%, -8g)
Unadjusted Apparent Water:
222g β€” Pushes True Hydration to 76.4% (+2.4% surge)
20% Active Starter & Salt:
60g / 6.6g β€” 30g hidden flour + 30g hidden water

Open Crumb & Gluten Physics at 74% Hydration (300g Flour + 214g Water)

Fermentation enzymatics inside 60g starter cleave proteins across 30g flour while releasing 30g unbound water into your 300g dough. Avoiding the 76.4% (+2.4%) slump of an unadjusted 222g pour requires 214g water (193g + 21g) and 6.6g salt, which locks True Total Hydration at 73.94% (target 74%).

Glutenin macropolymer alignment for 300g flour at 74% hydration improves when 193g water (90% of 214g) swells endosperm proteins for 45 minutes prior to adding 60g acidic levain, 6.6g salt, and 21g reserved waterβ€”preventing the 76.4% slump of 222g water.

Step-by-Step Mixing & Folding Protocol for a 581g Batch (300g @ 74%)

  1. Stage-1 Hydration (193g of 214g Water): Whisk 193g water into 300g base flour and cover for 45 min while 60g starter peaks.
  2. Stage-2 Double Hydration (+21g Splash & 6.6g Salt): Slap-and-fold 60g culture (30gF/30gW), 6.6g salt, and 21g water to lock 73.94% (74%).
  3. Gluten Organization (Moderate): Use damp fingers across 4 coil-fold sets to organize the 581g (330g total flour) matrix.
  4. Banneton Retard & Steam Bake (1 Small Boule): Shape tightly at +50% bulk volume, chill overnight at 38Β°F, and load into a 450Β°F Dutch oven.

Technical Q&A: Country 74% Sourdough Formula for 300g Flour: 21

Should I use slap-and-fold or coil folds for 300g flour at 74% (214g water)?

With 214g water (193g + 21g) and 60g starter on 300g flour (581g batch, 3/5 tack), use 4 damp-hand coil folds 30 minutes apart to align the 330g flour network.

How much water do I deduct for 60g starter in a 300g / 74% recipe?

Deduct 8g of water from the 222g apparent weight (pouring 214g main water instead) to offset the +2.4% surge (76.4%) from 60g starter (30gW/30gF).

How much water should I hold back for bassinage in a 300g flour / 74% dough?

Out of 214g corrected main water for 300g flour at 74%, mix 193g (90%) during the 45-minute autolyse and trickle in 21g (10%) with 60g starter and 6.6g salt.

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