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Bread hydration is the ratio of water to flour in a dough, expressed as a percentage. It is the single most important factor determining dough texture, crumb structure, and crust. Higher hydration creates more open, chewy crumbs; lower hydration creates denser, structured loaves.

公式

Baker\'s hydration = (Water weight / Flour weight) × 100

ステップバイステップガイド

1Baker's hydration = (Water weight / Flour weight) × 100
2Example: 375g water with 500g flour = 75% hydration
3Include all water sources: liquid from starter, milk, eggs (60% water)

解いた例

入力

300g water, 500g flour

結果

60% hydration

Good for bagels and pretzels — stiff, workable

入力

375g water, 500g flour

結果

75% hydration

Classic sourdough — open crumb

入力

450g water, 500g flour

結果

90% hydration

Ciabatta / focaccia — very wet, sticky dough

よくある質問

What is Bread Hydration?

Bread hydration is the ratio of water to flour in a dough, expressed as a percentage. It is the single most important factor determining dough texture, crumb structure, and crust

How accurate is the Bread Hydration calculator?

The calculator uses the standard published formula for bread hydration. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Bread Hydration calculator use?

This calculator works with inches, percentages, watts. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Bread Hydration calculator use?

The core formula is: Baker\'s hydration = (Water weight / Flour weight) × 100. Each step in the calculation is shown so you can verify the result manually.

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