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75% hydration sourdough with 400g flour
The answer
For a 75% hydration sourdough with 400 g flour and 20% starter: weigh 290 g water, 80 g starter and 9 g salt.
| Ingredient | Grams | % of total flour |
|---|---|---|
| Flour | 400 g | 90.9% |
| Water | 290 g | 65.9% |
| Starter (100% hydration) | 80 g | 18.2% |
| Salt | 9 g | 2% |
| Total dough | 779 g |
Total flour 440 g and total water 330 g with the starter counted: 330 ÷ 440 = 75%.
How it is worked out
80 g of a 100% starter is 40 g flour and 40 g water. With it, the dough has 440 g of flour, so 75% hydration means 330 g of water in total. The starter already brings 40 g, so you add 290 g. Salt is 2% of the total flour.
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Questions people ask
How much water for 75% hydration with 400g flour?
290 g, with 80 g of a 100% starter counted in. Without a starter it would be 300 g.
How much starter for 400g flour?
This page uses 20% of the flour: 80 g. Change the starter in the calculator and the water is worked out again.
Does the page say how long to ferment?
No. It works out weights and ratios only. Follow your recipe for timings.