- 1 cup flour (usually soft wheat flour is used, though this may vary depending on local traditions, which can affect the final result. In general, a refined flour with a protein content of 10–12% is preferred) (120 g)
- 4 tbsp lukewarm water (60 g)
- 1 tbs honey, malt, sugar, yogurt, or fruits, but also selected microorganisms from laboratories or already mature starters may be used (optional, as they facilitate the fermentation process)
For each feeding, you need to add an amount of flour equal to the total weight of the dough and half that weight in water, so the quantities may vary.