Steamed bread can last for 30 minutes, but it must be put in a steamer to wake up for a while so that steamed bread will not die.

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);

Take out the fermented dough, add white sugar (white sugar can be added according to your favorite taste, but southerners usually put sugar, only the north will have no white sugar), knead it thoroughly, then rub it into strips, pull up the agent, put it on the steamer, sprinkle with green and red silk, with the mouth facing up, 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.