Pulverize 50g of red rice with a stone mill or a pulverizer (it can also be used as a whole), then put it into1000g of clean water to boil, boil it with low fire for 5min, and then filter it with gauze to remove residues, thus obtaining red rice water. In addition, Redmi can also be made into red rice noodles. When using Redmi, you should pay attention not to use too much, otherwise it will taste bitter, but you can add some sugar to remove the acid and bitterness.