The materials for koji-making are also selected nearby, generally including peach leaves, orange leaves, bamboo leaves and Polygonum hydropiper. The production of the song seems simple, but it is still difficult to do it well. Inadvertently made koji has poor activity, and the quality of the brewed wine will be greatly reduced.
As mentioned earlier, the main raw materials of koji are peach leaves, orange leaves, bamboo leaves, Polygonum hydropiper leaves and rice. Of course, the distribution of plants in different places is different, and the raw materials will be different. In some places, laurel leaves and field grass will be added.
If it is 100 kg of rice, it needs 10 kg of dried Polygonum hydropiper, while peach leaves, orange leaves and bamboo leaves are each half kg of dried products. Pick it back, clean it, dry it in the sun and grind it into powder.
Then beat the rice into powder, stir it evenly with the powder of Polygonum hydropiper leaves, and then pour in a proper amount of warm water to stir it continuously, but the amount of water should not be too much. Just hold it in your hand and knead it into balls the size of eggs.