Hello, yes. Red mushrooms soup after a period of time, the color of the soup will become red, and the color of the red mushrooms will naturally fade to white or white yellowish, this is a normal phenomenon, does not necessarily mean that the red mushrooms are fake. In fact, the same effect will occur in water, so it is recommended to clean the red mushrooms as long as they are washed, remove the soil can be, long-term soaking, the nutritional value will be lost it, I hope to help you.