Sourdough Starter Calculator

Calculate feeding ratios and predict peak time for your sourdough starter.

Starter Settings

Amount of mature starter to feed

Estimated Peak Time

4.0 hrs

Range: 3.2 - 4.8 hours

Flour Needed

100g

Water Needed

100g

Total After Feeding

300g

Starter Hydration

100%

Tips for Peak Starter

  • • Starter should double or triple in size at peak
  • • Use when domed (before it starts to fall)
  • • Float test: a spoonful should float in water