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How much starter for 400g flour?
The answer
Starter is usually given as a percentage of the flour. For 400 g flour with a 100% hydration starter:
| Starter | Grams | Its flour | Its water |
|---|---|---|---|
| 10% | 40 g | 20 g | 20 g |
| 15% | 60 g | 30 g | 30 g |
| 20% | 80 g | 40 g | 40 g |
| 25% | 100 g | 50 g | 50 g |
How it is worked out
Multiply the flour by the percentage: 400 g × 20% = 80 g. A 100% starter is equal weights of flour and water, so each gram of it adds half a gram of each to the dough. The calculator below starts at 20% and 70% hydration as an example.
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Questions people ask
How much starter for 400g flour?
At 10% it is 40 g, 15% it is 60 g, 20% it is 80 g, 25% it is 100 g.
Does the starter change the hydration?
Yes, if you count it. 80 g of a 100% starter adds 40 g flour and 40 g water to the dough.
Which percentage should I use?
Use the one in your recipe. This page only turns a percentage into grams.