2, river rice steamed rice before soaking for a period of time will be more convenient to cook, but the soaking time needs to be grasped, so as to avoid soaking time is too long, river rice and air bacteria and other microorganisms react to generate a series of harmful substances, and even the possibility of odor, acidity and other deterioration of the human body accidentally consumed, it will be the accumulation of toxins in the body, affecting their own health, and some people will also be Diarrhea, abdominal pain and other discomforts, it is generally recommended that the soaking time between 30-60 minutes.