Sourdough Starter Refresh Calculator — Free Online Tool
Calculate flour and water quantities for your sourdough based on hydration, starter weight and desired amount. A free tool for artisan bakers.
Flour
Total flour weight (g)
g
Starter
Inoculation rate (%)20%
Starter hydration
Results
Starter weight needed200 g
Flour in the starter100 g
Water in the starter100 g
Flour added at mixing900 g
How does it work?
Sourdough starter is made of flour and water in a ratio defined by its hydration. A 100% hydration starter has equal parts flour and water (1:1 ratio). At 50%, it contains 2 parts flour to 1 part water. This calculator breaks down the total starter weight into its two components and calculates the remaining flour to add at mixing.
This tool is also built into the LogiBake app, using your own ingredients and recipes.
LogiBake does not replace your expertise.
It gives you the tools to make the most of it.