Pack any leftover rice in a glass container. Spread it evenly and don't press it down. Ideally, you want to pack the rice with steam and cover it with the lid immediately to trap the steam and moisture.
Let cool completely before storing them in the freezer. You do not want to spoil your food in the freezer with your hot/warm rice.
Put in the freezer. The rice quality will stay well for up to 1 month!
To Reheat the Frozen Rice in a Microwave
If you are using the glass container to store the leftover rice: Take out the frozen rice container from the freezer. Open the lid and loosely cover it with a paper towel. Microwave until the rice is hot all the way through. This particular 4-cup container requires microwaving for 4 minutes (1100 w). You might want to experiment with your microwave to see how long it takes to defrost properly.
If you are using the plastic wrap/bag to store the leftover rice: Defrost the rice package in the refrigerator or on the counter until the plastic wrap comes off. Transfer to a bowl/plate. Sprinkle a little bit of water to add some moisture. Loosely cover it with a paper towel. Microwave for 1½ to 2 minutes, or until hot all the way through.
To Reheat the Frozen Rice on the Stove
Take out the rice from the freezer and open the lid. Prepare the steamer using a large pot with aluminum foil balls. Add 1 inch (2.5 cm) of water.
Place a plate on top or put the glass container that has leftover rice on top of the aluminum foil balls.
Bring the water to a boil and steam the frozen rice in the glass container until the rice is defrosted and warm.