A little science. A lot of good food.
Know your dough by heart.
Calculate baker’s percentages and dough hydration, including the flour and water in your sourdough starter. Export your formula for free.

THE SECRET INGREDIENTA little precision.
Every percentage starts with the flour.
Starter flour and water count, too.
02 / Inside your dough
Baker’s percentages use all flour as 100%, not total dough weight. The percentages need not add up to 100. Sources & assumptions ↗
A pinch of know-how
Bread is
a balance.
Every number is measured against the flour.
01
Remember the starter.
100 g of starter at 100% hydration contributes 50 g flour and 50 g water. Both belong in the hydration calculation.
See a worked example ↗02
Percentages aren’t portions.
Flour is 100%. Water, salt and other ingredients are percentages of flour, so the formula adds up to more than 100%.
Scale ingredient weights ↗