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Fruit Yeast Water for Levain (Italian Starter)

Recipe by Oh my Bread Sourdough Baking School

A simple, natural fruit yeast water that jump‑starts an Italian levain (levito madre). Using ripe, unwaxed fruit (grapes, apples peel, plums, etc.) and warm water, you create a lively, yeasty liquid in 24‑48 hours that can be fed to a sourdough starter for a fast, stable fermentation.

MediumItalianServes 1

Printable version with shopping checklist

Source Video
48h 20m
Prep
0m
Cook
5h 48m
Cleanup
54h 8m
Total

Cost Breakdown

Total cost:$0.75
Per serving:$0.75

Critical Success Points

  • Crushing fruit gently without rubbing to preserve wild yeast.
  • Maintaining a steady temperature of 30‑32°C during fermentation.
  • Covering the jar loosely to allow gas exchange while keeping contaminants out.

Safety Warnings

  • Do not use fruit that has been treated with wax or pesticides.
  • Do not let the fermentation temperature exceed 35°C, which can kill the yeast.
  • Keep the jar clean to avoid pathogenic microorganisms.

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