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Sourdough Starter Feeding Calculator

Enter how much starter you're keeping and your feeding ratio to calculate flour and water needed.

How to use this tool

  1. 1Enter the amount of starter you're keeping.
  2. 2Enter your feeding ratio (starter:flour:water).
  3. 3See flour and water needed.

Frequently asked questions

What ratio should I use?+

1:1:1 is common for twice-daily feeding of an active starter; 1:5:5 or higher is common for once-daily feeding or a slower rise.

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