I reheat leftover rice in the microwave with a sprinkle of water (about 1 tablespoon) and I loosely cover the rice while it reheats. Don't forget to add the water, or the leftover rice will be dry and hard. If you don't have a microwave, then reheat the rice in a sauce pan with a sprinkle of water. If the rice still seems dry, then add a little oil or butter.