Rice is a kind of food easily contaminated by bacteria, so special attention should be paid to preservation. Putting cooked rice in the refrigerator can prolong the shelf life, but it is recommended to eat it within 1-2 days. Rice stored for a long time is easy to breed bacteria, especially in high temperature environment, bacteria multiply faster. If it needs to be preserved for a longer time, the rice can be divided into small portions, placed in sealed bags or containers, and frozen. In the frozen state, rice can be stored for 1-2 months.