Introduction of monascus knowledge: Monascus is Monascus purpurea, also known as Monascus, which is fermented by Monascus in rice; Monascus water is dyed with monascus rice and usually made into monascus water. The method is as follows: 50 grams of monascus rice is crushed with a stone mill or a pulverizer (it can also be used as a whole grain), then boiled in 1 liter of clean water, boiled with low fire for 5 minutes, and then filtered with gauze to remove residues to obtain monascus water; Monascus powder is prepared by pulverizing Monascus rice into Monascus powder.