A biga is a dough made ahead with part of the flour, little water and a pinch of yeast. It matures for many hours, usually 16 to 24 at around 18 °C, then goes into the final dough with the rest of the flour, the water and the salt. It's drier than a poolish: it looks like loose, shaggy lumps, not a smooth paste.
The amounts
For four 250 g balls at 70% hydration: 579 g of flour in all. The biga percentage is the share of that flour that goes into the biga. The biga has 45% water and 1% fresh yeast on its own flour.
| Biga | Flour | Water | Yeast | + Flour | + Water | + Salt |
|---|---|---|---|---|---|---|
| 30% | 174 g | 78 g | 1.7 g | 405 g | 327 g | 16.2 g |
| 50% | 289 g | 130 g | 2.9 g | 289 g | 275 g | 16.2 g |
| 100% | 579 g | 260 g | 5.8 g | 0 g | 145 g | 16.2 g |
How to make it
- Dissolve the yeast in the biga water, at room temperature or cool.
- Add the flour and mix for a few minutes, just until the water is absorbed. It shouldn't turn smooth: leave it in rough lumps.
- Cover and let it mature for 16–24 hours at around 18 °C. It's ready when it smells good, slightly tangy, and has grown.
- In the final dough, break the biga up and work it with the water, then the remaining flour and, last, the salt.
How much biga to use
- 20 to 30%: more aroma without changing how you work much. A good start.
- Around 50%: a stronger aroma and a lighter dough, but you need stronger flour.
- 100%: all the flour goes through the biga. The final dough is just biga, water and salt: the most flavour, but the biga needs careful handling.
The night-time problem
With 18–24 hours of maturation, the biga often ends up needing to be made in the middle of the night. MasterPIZZA's guide spots it: if you'd have to make it between 23:30 and 7:00, it changes the maturation hours (always between 16 and 24) and alerts you at the right time.

Let MasterPIZZA do the maths
Pick your dough balls, hours and temperature: the app gives you the amounts to the gram and guides you step by step, with alerts. Free for Android.
Get it on Google Play ↗