Overnight soymilk can be heated and drunk if it is well preserved and not spoiled. If it is not properly preserved and the nature of the soy milk has changed or has a sour taste, it is not recommended to drink it at this time. If you don’t finish the soymilk, you can seal it up and store it in the refrigerator. Because the temperature inside the refrigerator is relatively low, it is not easy to breed bacteria, usually can still be heated to drink after the overnight, but should be heated at high temperatures before drinking. If you make a good soybean milk at night at room temperature, no refrigeration, soybean milk directly in contact with the air, it is easy to breed some bacteria, is not recommended to heat and then drink, so as to avoid diarrhea, abdominal pain and other gastrointestinal symptoms. Soymilk is recommended to be consumed on the same day, if you drink it overnight, keep it well, do not put it at room temperature, if the next day the soybean milk has deteriorated, you should stop drinking it immediately.