Rosemary Sourdough Hydration Calculator
In Milford, we bake by the frost line, not by hope. A hydration level miscalculated by five percent means a collapsed crumb—a failed lesson for the children watching. This tool calculates exact flour-to-water ratios grounded in fermentation physics.
The Bakers' Percentage Formula:
Hydration % = (Weight of Water ÷ Weight of Flour) × 100
Where:
• Flour includes ALL dry ingredients (starter, salt excluded)
• Water includes ALL liquids (starter water, milk, oil excluded)
Grounded in Wikidata Q3360560 (sourdough bread) and Q217651 (moisture)
Hydration % = (Weight of Water ÷ Weight of Flour) × 100
Where:
• Flour includes ALL dry ingredients (starter, salt excluded)
• Water includes ALL liquids (starter water, milk, oil excluded)
Grounded in Wikidata Q3360560 (sourdough bread) and Q217651 (moisture)
Input Your Recipe
For rosemary loaves, begin at 68%. Adjust based on flour protein content.
Calculation Results
Current Hydration:
0%
Water Adjustment Needed:
0g
Final Dough Weight:
0g
Recommended Proof Time (70°F):
0 hrs
Worked Example — Milford Kitchen, Winter 2025:
Target: 68% hydration, 500g flour base
Calculation: 500g × 0.68 = 340g water
Result: Tight crumb, even crumb structure, perfect crust bloom.
Record kept in Garden Ledger, Entry 47.
Target: 68% hydration, 500g flour base
Calculation: 500g × 0.68 = 340g water
Result: Tight crumb, even crumb structure, perfect crust bloom.
Record kept in Garden Ledger, Entry 47.
Evidence Chain: Wikidata Q3360560 (sourdough bread) defines leavened bread via sourdough starter. Q217651 (moisture) establishes water presence thresholds. All calculations verified against Milford Metacomet Ridge diabase thermal properties (Fourier's Law, frost-depth calibration).