Proof the dough in a lightly oiled bowl, and cover with plastic wrap at room temperature until biga is bubbly and has tripled in size, 2-4 hours.

• 将其放到抹油的碗里，盖上塑料保鲜膜室温发酵2-4个小时直到酵头产生丰富泡泡且体积胀大3倍。