1. Add flour and water to the fermented noodles (old noodles) to make dough, and put it in a pot or fermentation box for fermentation (the fermentation time depends on the indoor temperature and the number of old noodles);

2. Take out the fermented dough and add alkali (homemade steamed bread generally does not add alkali, and it will taste after adding alkali, which will destroy the original flavor of steamed bread) and white sugar (white sugar can be added according to your favorite taste, and northerners generally do not put sugar, but only in the south.

White steamed bread will have sugar), knead thoroughly, then knead into long strips, pick up the medicine, put it on a steamer with the mouth facing up, sprinkle with green and red silk, steam for 20 minutes on high fire, and take it out. Steamed bread in the north is usually made of long noodles.

Then knead the medicine into a steamed bread with a flat bottom and a round top. Then put it on a steamer and steam it.