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Rescuing Over-Hydrated King Arthur All-Purpose Flour (11.7% Protein) at 78% (+15g VWG vs 72% Cap)

Over-ceiling rescue for King Arthur Unbleached All-Purpose Flour (0.48% ash) when 78% (379g water) exceeds its 72% limit by 6%.

Executive Baker's Math Summary (Flour Brand × Absorption Benchmark)

Bakers running King Arthur Unbleached All-Purpose Flour (11.7% protein, 0.48% ash, US Hard Red Blend) at 78% operate in the [OVER CEILING (+6% Above Limit)] zone relative to its 65%–70% sweet spot and 72% cap. Deducting 11g from 390g (80%) down to 379g water on 500g King Arthur All-Purpose Flour + 100g levain locks True Total Hydration at 78.0% (target 78%).

Absorption Status
OVER78% Target vs. 72% Max Ceiling
Flour Protein & Ash
11.7% / 0.48%US Hard Red Blend
500g Batch Main Water
379gWith 100g starter, locks True Total Hydration at 78.0% (target 78%)
Optimal Sweet Spot
65%–70%Add 15g Vital Wheat Gluten at 78%

Farinograph & Batch Scaling Table for King Arthur All-Purpose Flour at 78% (379g Water)

Mass-balance water deductions (-11g from 390g) and 72% ceiling headroom for King Arthur All-Purpose Flour around 78% hydration.

King Arthur All-Purpose Flour Hydration StepCorrected Water (78% Ref)Protein, Ash & Sweet SpotBenchmark Flour ComparisonCeiling Margin & Rescue
400g King Arthur All-Purpose Flour @ 73% Low (-5%)281g W + 80g levain + 8.8g salt (440g totF / 78% grid)11.7% prot / 0.48% ash (sweet 65–70%)vs Bob's Red Mill Bread Flour (78% max / 294g W)+2g VWG rescue for King Arthur All-Purpose Flour @ 73%
450g King Arthur All-Purpose Flour @ 76% Near (-2%)331g W + 90g levain + 9.9g salt (495g totF / 78% grid)11.7% prot / 0.48% ash (sweet 65–70%)vs Gold Medal Bread Flour (75% max / 316g W)+9g VWG rescue for King Arthur All-Purpose Flour @ 76%
500g King Arthur All-Purpose Flour @ 78% [Core Ratio]379g W + 100g levain + 11.0g salt (550g totF / 78% grid)11.7% prot / 0.48% ash (sweet 65–70%)vs Bob's Red Mill Bread Flour (78% max / 368g W)+15g VWG rescue for King Arthur All-Purpose Flour @ 78%
600g King Arthur All-Purpose Flour @ 81% High (+3%)475g W + 120g levain + 13.2g salt (660g totF / 78% grid)11.7% prot / 0.48% ash (sweet 65–70%)vs Gold Medal Bread Flour (75% max / 422g W)+27g VWG rescue for King Arthur All-Purpose Flour @ 81%
650g King Arthur All-Purpose Flour @ 72% [Safe Peak]450g W + 130g levain + 14.3g salt (715g totF / 78% grid)11.7% prot / 0.48% ash (sweet 65–70%)vs Bob's Red Mill Bread Flour (78% max / 478g W)+0% buffer vs 72% cap (R5/78%)

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Absorption Status:
OVER — 78% Target vs. 72% Max Ceiling
Flour Protein & Ash:
11.7% / 0.48% — US Hard Red Blend
500g Batch Main Water:
379g — With 100g starter, locks True Total Hydration at 78.0% (target 78%)

Why King Arthur All-Purpose Flour (11.7% Protein) Slumps at 78% (+6% Over 72% Cap)

King Arthur Unbleached All-Purpose Flour (11.7% protein, 0.48% ash) blends hard red wheats tested at 78% (379g water, 78.0%) for top American AP gluten index, though 0.61 base absorption caps safe water at 72%. Using 341g autolyse plus 38g bassinage (avoiding 390g / 80%) balances gliadin stretch and glutenin recoil. At 78% extreme benchmark (379g main water locking 78.0% vs 80% apparent), King Arthur All-Purpose Flour (0.48% ash) demands 38g staged bassinage water.

HIGH-HYDRATION CORRECTION (King Arthur All-Purpose Flour @ 78.0%): Because 78% (379g water + 100g levain) tops King Arthur All-Purpose Flour's 72% ceiling by 6% (33g unbound water across 11.7% protein), fortify 500g flour with 15g VWG or drop to 346g water.

Gluten Conditioning Workflow: 500g King Arthur All-Purpose Flour, 341g Soak + 38g Splash

  1. Ash & Starch Hydration (0.48% Ash / 341g W): Whisk 341g water into 500g King Arthur All-Purpose Flour plus 15g VWG for 55 min.
  2. Starter & Salt Integration (379g Corrected W): Pinch 100g peaked levain (50gF/50gW), 11g sea salt, and 38g water into 500g King Arthur All-Purpose Flour (78.0%).
  3. Gluten Alignment (11.7% Protein @ 78%): Space 4 coil folds 30 min apart to manage [OVER] viscosity.
  4. Cold Proof & 450°F Bake: Shape tightly after +50% aliquot expansion, retard 12–16 hrs at 38°F, and bake in cast iron at 450°F.

Diagnostic Answers: Why Is My King Arthur All-Purpose Flour Sour

Why do I use 379g water instead of 390g for 500g King Arthur All-Purpose Flour at 78%?

Because 100g of 100% starter adds 50g flour and 50g water to 500g King Arthur All-Purpose Flour, 390g water creates 80% hydration. Using 379g water locks True Total Hydration at 78.0% (target 78%).

What is the optimal hydration sweet spot for King Arthur All-Purpose Flour vs 78%?

King Arthur All-Purpose Flour (US Hard Red Blend, 11.7% protein, 0.48% ash) peaks at 65%–70% (321g water per 500g flour), whereas 78% requires 379g water (78.0%).

How long should I autolyse 500g King Arthur All-Purpose Flour at 78% (341g water)?

Soak 500g King Arthur All-Purpose Flour (11.7% protein, 0.48% ash) in 341g water for 55–60 minutes before adding 100g levain, 11g salt, and 38g water (379g total, 78.0%).

Next-Step Reference Tables (OVER Context)

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