What Is Baker's Hydration?
Hydration is the ratio of water to flour by weight. A 70% hydration dough has 700g water for every 1000g flour. It determines crumb, crust, and handling.
You measured wrong, your flour is extra thirsty, or the humidity is wild. Tell us what you have and what you want — we'll tell you exactly how much flour or water to add.
Adjust My DoughEnter your current dough stats and your target hydration. The adjuster will tell you exactly what to add.
Hydration is the ratio of water to flour by weight. A 70% hydration dough has 700g water for every 1000g flour. It determines crumb, crust, and handling.
Your starter may be 100% hydration (equal parts flour and water). When you mix it into a final dough, its flour and water both count toward the total dough hydration.
If your dough is too wet to handle, calculate how much flour to add to bring hydration down by 5–10 percentage points. Add gradually during stretch-and-folds.
Dry, shaggy dough needs more water. Use this tool to find the exact grams to add, then incorporate with wet hands during folding. Small adjustments make a big difference.
| Starter (g) | Flour (g) | Water (g) | Hydration | Consistency |
|---|---|---|---|---|
| 50 | 100 | 100 | 100% | Liquid levain |
| 50 | 100 | 80 | 80% | Soft paste |
| 50 | 100 | 65 | 65% | Stiff levain |
| 50 | 100 | 50 | 50% | Very stiff, pasta madre |
| 50 | 100 | 125 | 125% | Thin batter |