Cooked chestnuts can be eaten overnight, depending on whether the cooked chestnuts after overnight spoilage. If there is no deterioration can be eaten, if it has been deteriorated can not be eaten, need to be discarded in a timely manner. 1. can eat: cooked chestnuts if not eaten, timely chestnuts in the refrigerator inside the refrigerator, or placed in the lower temperature indoor, overnight, cooked chestnuts basically does not appear to deteriorate, cooked chestnuts did not occur when the deterioration, you can eat normally. 2. can not eat: if there is no cooked chestnuts in the refrigerator inside the refrigerator, or placed in the temperature is relatively high indoor preservation, overnight, cooked chestnuts may be deterioration, such as mold, rot, etc., need to promptly discard the deterioration of the chestnuts, can not continue to eat, so as not to induce physical discomfort. Chestnuts are relatively common food, but when eating chestnuts, you need to combine the temperature, choose the appropriate preservation method.