It is normal for black rice to lose color when soaked in water. The color of natural black rice is the water-soluble pigment anthocyanin, so it is normal for the color to fade during the washing process and it can be eaten with confidence. When cooking black rice, due to the high water temperature, the melanin in black rice is unstable, so it is normal for black rice to lose color during the cooking process. When washing rice, you can wash it gently with cold water to prevent black rice from fading too much. The color of black rice will only fade slightly in cold water. If the black rice discolors seriously immediately after being put into cold water, it means that there may be something wrong with the black rice. Black rice contains a large amount of protein and amino acids, as well as a variety of vitamins, iron, selenium, etc. It has a very good nourishing effect. It can be eaten by the general population, chronic patients, and those who are weak after illness. It helps to strengthen the body and recover from diseases. .