A rice cooker kept warm for a day does have some potential dangers. First of all, long time insulation will make the rice cooker hot, may cause circuit short circuit, fire or explosion and other safety accidents. Secondly, rice in the state of heat preservation is easy to breed bacteria in a warm and humid environment and multiply rapidly, increasing the risk of food poisoning. In addition, holding heat for a long time will also cause the water in the rice to evaporate, making the rice hard and lose taste, and the nutrients will also be lost. 12
The power consumption in the heat preservation state of the rice cooker is also a problem that users are concerned about. Indeed, the heat preservation state will consume a certain amount of electricity, especially when the heat preservation time is more than 4 hours, it is better to immediately cut off the power to let the food cool naturally, and reheat it for the next time.
Therefore, in order to avoid these potential dangers and unnecessary power consumption, it is recommended not to keep the rice cooker in the heat preservation state for a long time. If you need to keep the food warm for a long time, consider using other methods, such as storing the food in an insulated container.