Pushing King Arthur All-Purpose Flour (11.7% Protein) to 72% Hydration Near Its 72% Ceiling (346g W)
Upper-limit 72% test for King Arthur Unbleached All-Purpose Flour (US Hard Red Blend, +0% margin under 72% max) with 35g bassinage.
Milled in the US Hard Red Blend class (11.7% protein / 0.48% mineral ash), King Arthur Unbleached All-Purpose Flour peaks across 65%–70% up to a 72% ceiling—placing 72% in [UPPER ARTISAN LIMIT]. Blending 500g King Arthur All-Purpose Flour, 100g levain, 11g salt, and 346g water (396g total water ÷ 550g flour) locks True Total Hydration at 72.0% (target 72%) vs 74.5% at 360g.
- Absorption Status
- UPPER72% Target vs. 72% Max Ceiling
- Flour Protein & Ash
- 11.7% / 0.48%US Hard Red Blend
- 500g Batch Main Water
- 346gWith 100g starter, locks True Total Hydration at 72.0% (target 72%)
- Optimal Sweet Spot
- 65%–70%No gluten fortifier required
5-Point Absorption & Ceiling Margin Grid Centered on King Arthur All-Purpose Flour @ 72%
Evaluating King Arthur Unbleached All-Purpose Flour (11.7% protein, 0.48% ash) across 72% ± 5% steps against its 65%–70% sweet spot and 72% ceiling.
| King Arthur All-Purpose Flour Hydration Step | Corrected Water (72% Ref) | Protein, Ash & Sweet Spot | Benchmark Flour Comparison | Ceiling Margin & Rescue |
|---|---|---|---|---|
| 400g King Arthur All-Purpose Flour @ 67% -5% Step | 255g W + 80g levain + 8.8g salt (440g totF / 72% grid) | 11.7% prot / 0.48% ash (sweet 65–70%) | vs Bob's Red Mill Bread Flour (78% max / 294g W) | +5% buffer vs 72% cap (R1/72%) |
| 450g King Arthur All-Purpose Flour @ 70% -2% Step | 302g W + 90g levain + 9.9g salt (495g totF / 72% grid) | 11.7% prot / 0.48% ash (sweet 65–70%) | vs Gold Medal Bread Flour (75% max / 316g W) | +2% buffer vs 72% cap (R2/72%) |
| 500g King Arthur All-Purpose Flour @ 72% [Target Spec] | 346g W + 100g levain + 11.0g salt (550g totF / 72% grid) | 11.7% prot / 0.48% ash (sweet 65–70%) | vs Bob's Red Mill Bread Flour (78% max / 368g W) | +0% buffer vs 72% cap (R3/72%) |
| 600g King Arthur All-Purpose Flour @ 75% +3% Push | 435g W + 120g levain + 13.2g salt (660g totF / 72% grid) | 11.7% prot / 0.48% ash (sweet 65–70%) | vs Gold Medal Bread Flour (75% max / 422g W) | +9g VWG rescue for King Arthur All-Purpose Flour @ 75% |
| 600g King Arthur All-Purpose Flour @ 72% [Max Ceiling] | 415g W + 120g levain + 13.2g salt (660g totF / 72% grid) | 11.7% prot / 0.48% ash (sweet 65–70%) | vs Bob's Red Mill Bread Flour (78% max / 442g W) | +0% buffer vs 72% cap (R5/72%) |
Real-Time Dough & Starter Scaling Sandbox
Scale this King Arthur All-Purpose Flour Sourdo specification up or down on your digital scale with zero hydration drift.
Pushing King Arthur All-Purpose Flour (11.7% Protein) to 72% (72.0%) Without Losing Tenacity
King Arthur Unbleached All-Purpose Flour (11.7% protein, 0.48% ash) blends hard red wheats tested at 72% (346g water, 72.0%) for top American AP gluten index, though 0.61 base absorption caps safe water at 72%. Using 311g autolyse plus 35g bassinage (avoiding 360g / 74.5%) balances gliadin stretch and glutenin recoil. Under a 72% (72.0%) regime using 346g water (311g + 35g) and 11g salt, 500g King Arthur All-Purpose Flour requires zero VWG below its 72% cap.
SWEET-SPOT & CEILING CALIBRATION: Using 346g main water (311g soak + 35g bassinage) on 500g King Arthur All-Purpose Flour (11.7% protein, 0.48% ash) locks 72.0% (72%) with +0% headroom below 72% vs Gold Medal Bread Flour.
Handling King Arthur All-Purpose Flour (11.7% Protein / 0.48% Ash) at 72.0% (72%)
- Stage-1 Autolyse (King Arthur All-Purpose Flour @ 0.48% Ash): Mix 500g King Arthur All-Purpose Flour with 311g water (saving 35g of 346g) and rest 45 min.
- Stage-2 Levain Lock (100g Starter + 35g W): Slap-and-fold 100g levain, 11g salt, and 35g water into 500g King Arthur All-Purpose Flour to lock 72.0% (72%).
- Coil-Fold Tenacity (11.7% Protein): Execute 4 gentle coil folds 30 min apart, respecting King Arthur All-Purpose Flour's 65%–70% sweet spot.
- Final Shape & 450°F Bake: Seal seams in a rice-floured liner at +50% rise, chill overnight at 38°F, and bake covered at 450°F.
Diagnostic Answers: King Arthur All-Purpose Flour Sourdough Hydr
Is King Arthur All-Purpose Flour malted or unmalted for a 72% (346g water) sourdough?
In the US Hard Red Blend category (11.7% protein, 0.48% ash), 500g King Arthur All-Purpose Flour hydrated with 346g water (72.0% / 72%) follows a 65%–70% sweet spot and 72% ceiling.
Can I use King Arthur All-Purpose Flour at 72% in a Tartine-style sourdough recipe?
Because King Arthur All-Purpose Flour (11.7% protein) caps at 72% (sweet spot 65%–70%), scale a 72% recipe to 346g water or add 0g VWG.
How much water do I need for 500g of King Arthur All-Purpose Flour at 72% hydration?
With 500g King Arthur All-Purpose Flour and 100g active 100% starter, weigh 346g main water (311g autolyse + 35g bassinage) and 11g salt to lock 72.0% (72%) instead of 360g (74.5%).