1, put a plate of hot water at the bottom of the oven. You can use a baking tray, put about half of the boiling water in the lower layer, and don't move until the fermentation is completed.

2. Preheat the oven with 180 for 2 to 3 minutes. Don't turn on the oven after preheating, just turn it off.

3. Then put it into the dough kneaded in the middle layer. Cover the oven and wait for about 45 minutes.

4. Turn on the oven and take out the plate with water. Then take out the dough and ferment it successfully, as shown in the figure.