Properly stored, cooked rice will last for 4 to 6 days in the refrigerator. How long can cooked rice be left at room temperature? Bacteria grow rapidly at temperatures between 40 °F and 140 °F; rice should be discarded if left out for more than 2 hours at room temperature. To further extend the shelf life of cooked rice, freeze it; freeze rice in covered airtight containers or heavy-duty freezer bags.