Starterfeed

Sourdough feed ratios, levain builds and a peak-time log you fill in yourself

Starterfeed is a planner for people who keep a sourdough starter and bake with levain. It does the arithmetic for feeding and levain builds, and it learns timing from the feeds you log yourself. It never prints a fixed rise time, because every kitchen, flour and starter is different.

FEEDING CALCULATOR Pick a ratio of starter to flour to water (1:1:1, 1:2:2, 1:5:5, or your own custom numbers), enter the total you want in the jar, and get the grams of each part. Change a starter's hydration, for example from 100 percent to 75 percent, and see how much flour or water to add. Split a flour weight between two flours by percent.

LEVAIN PLANNER Enter your recipe's total flour, dough hydration and levain percentage to get the levain weight plus the flour and water still to add to the dough. Turn a levain weight into starter, flour and water for a one-stage or two-stage build. Then enter a bake time and the hours from ripe levain to the bake, and the app works backward to show when to start each stage, using the average hours to peak from your own log or a number you type.

FEEDING LOG Record each feed with its time, ratio and kitchen temperature. When the jar peaks, add the rise in percent and the hours it took. The log shows average hours to peak and average rise for each ratio and for each temperature band, and the home screen draws a jar with your rise line and peak marker.

NEXT FEED Set how many hours you feed after and see when the next feed is due, counted from your latest logged feed. This shows inside the app only. There are no notifications.

DISCARD TRACKER Add the grams you discard and see weekly totals for the last eight weeks, so you can see the waste and adjust your feeds.

BUILT-IN GUIDE AND SETTINGS A plain-English guide explains hydration, ratios, levain builds and how to use the log. Choose Celsius or Fahrenheit and a 12 or 24 hour clock. You can reset everything at any time.

The calculators are planning aids and general baking guidance. Your jar has the final word.

Starterfeed keeps your log on your own phone. It needs no account and no internet connection, so a feed noted at the kitchen counter is saved there and nowhere else.

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