Rescuing Over-Hydrated King Arthur Bread Flour (12.7% Protein) at 85% (+13g VWG vs 80% Cap)
Over-ceiling rescue for King Arthur Unbleached Bread Flour (0.52% ash) when 85% (418g water) exceeds its 80% limit by 5%.
At 85% hydration ([OVER CEILING (+5% Above Limit)]), King Arthur Unbleached Bread Flour (US Hard Red Winter/Spring, 12.7% protein, 0.52% ash) sits 5% above its 80% ceiling (sweet spot 72%–77%). Weighing 418g main water (rather than 425g / 86.4%) with 500g King Arthur Bread Flour, 100g levain, and 11g salt locks True Total Hydration at 85.09% (target 85%).
- Absorption Status
- OVER85% Target vs. 80% Max Ceiling
- Flour Protein & Ash
- 12.7% / 0.52%US Hard Red Winter/Spring
- 500g Batch Main Water
- 418gWith 100g starter, locks True Total Hydration at 85.09% (target 85%)
- Optimal Sweet Spot
- 72%–77%Add 13g Vital Wheat Gluten at 85%
King Arthur Bread Flour 2D Hydration & Benchmark Matrix Around 85% (85.09%)
Mass-balance water deductions (-7g from 425g) and 80% ceiling headroom for King Arthur Bread Flour around 85% hydration.
| King Arthur Bread Flour Hydration Step | Corrected Water (85% Ref) | Protein, Ash & Sweet Spot | Benchmark Flour Comparison | Ceiling Margin & Rescue |
|---|---|---|---|---|
| 400g King Arthur Bread Flour @ 80% Stiff (-5%) | 312g W + 80g levain + 8.8g salt (440g totF / 85% grid) | 12.7% prot / 0.52% ash (sweet 72–77%) | vs King Arthur All-Purpose Flour (72% max / 268g W) | +0% buffer vs 80% cap (R1/85%) |
| 450g King Arthur Bread Flour @ 83% Pre-Target (-2%) | 366g W + 90g levain + 9.9g salt (495g totF / 85% grid) | 12.7% prot / 0.52% ash (sweet 72–77%) | vs Central Milling ABC+ Flour (77% max / 326g W) | +7g VWG rescue for King Arthur Bread Flour @ 83% |
| 500g King Arthur Bread Flour @ 85% [Locked Point] | 418g W + 100g levain + 11.0g salt (550g totF / 85% grid) | 12.7% prot / 0.52% ash (sweet 72–77%) | vs King Arthur All-Purpose Flour (72% max / 335g W) | +13g VWG rescue for King Arthur Bread Flour @ 85% |
| 600g King Arthur Bread Flour @ 88% Stretch (+3%) | 521g W + 120g levain + 13.2g salt (660g totF / 85% grid) | 12.7% prot / 0.52% ash (sweet 72–77%) | vs Central Milling ABC+ Flour (77% max / 435g W) | +24g VWG rescue for King Arthur Bread Flour @ 88% |
| 725g King Arthur Bread Flour @ 80% [Threshold] | 566g W + 145g levain + 16.0g salt (798g totF / 85% grid) | 12.7% prot / 0.52% ash (sweet 72–77%) | vs King Arthur All-Purpose Flour (72% max / 487g W) | +0% buffer vs 80% cap (R5/85%) |
Live Parameter Solver for Rescuing Over-Hydrated King Arthur Bread F
Dial in custom baker's percentages and export your adjusted OVER formula for bake day.
Why King Arthur Bread Flour (12.7% Protein) Slumps at 85% (+5% Over 80% Cap)
King Arthur Unbleached Bread Flour (12.7% protein, 0.52% ash) is roller-milled for 85% (418g water) sourdough from unmalted US Hard Red wheat with high Alveograph P/L tenacity (85.09% true hydration). With zero malted barley amylase across a 376g autolyse and 42g bassinage, its starch resists liquefaction vs 425g (86.4%). At 85% extreme benchmark (418g main water locking 85.09% vs 86.4% apparent), King Arthur Bread Flour (0.52% ash) demands 42g staged bassinage water.
FREE-WATER SYNERESIS ALERT: Pushing King Arthur Bread Flour (0.52% ash, 12.7% protein) to 85% (418g main water / 85.09%) surpasses its 80% ceiling by 5% (28g unbound water). Blend 13g VWG or 15% Central Milling ABC+ Flour, or cut water to 390g.
Bench & Cold-Retard Execution for King Arthur Bread Flour Near Its 80% Ceiling
- Autolyse Soak (King Arthur Bread Flour @ 376g W): Mix 500g King Arthur Bread Flour (12.7% protein) with 376g water for 60 min.
- Levain & 42g Bassinage (418g Total W): Dimple 100g starter and 11g salt with 42g water to lock 85.09% (85%).
- Rheological Folds (US Hard Red Winter/Spring): Execute 4 wet-hand coil folds every 30 min vs 80% cap.
- Preshape & 38°F Retard (King Arthur Bread Flour): Bench rest 25 min at +50% bulk rise, stitch into a rice-floured banneton, and chill 14 hrs at 38°F.
Cereal Chemistry & Bench Execution FAQs
Can I substitute Central Milling ABC+ Flour for King Arthur Bread Flour at 85% hydration?
Swapping 500g King Arthur Bread Flour (80% cap, 72%–77% sweet spot) for Central Milling ABC+ Flour (77% cap, 11.5% protein) at 85% (418g water) shifts ceiling margin by -3%.
What happens if King Arthur Bread Flour goes 5% past its 80% limit at 85%?
At 85% (418g water, 85.09%), 500g King Arthur Bread Flour sits 5% over its 80% (390g water) ceiling, leaving 28g unbound water unless 13g VWG is added.
Can I use King Arthur Bread Flour at 85% in a Tartine-style sourdough recipe?
Yes—King Arthur Bread Flour (12.7% protein, 80% cap) supports 85% when 418g water (376g + 42g) locks 85.09% with 100g starter.