Cooked rice when left exposed to the air for a day turns hard. So in order to prevent cooked rice from turning hard, if you want to keep rice for longer period of time, what you need to do is to first let the cooked rice cool down for about 4 hours. But before you allow the rice to cool down, you need to scoop them out of the rice cooker inner pot as soon as the rice is done cooking. This is done because it will still be hot and soft to scoop out the rice. If you decide to scoop out the rice from the inner rice bowl of the rice cooker when it cools down, you are making a mistake. The rice would have turned hard and you will find it very tough to scoop them out.
You then put the rice in a container like this one below:
Allow the rice to cool for about 4 hours or more.
Just before you put the rice into the fridge, take a spatula and loosen the rice throughout inside the storage container. Then you put the container into the fridge. In case if you don't know what a rice spatula looks like:
When you need to warm the rice to eat, you can simply pour a small amount of water into the rice container and use the rice spatula to scoop out whatever amount that you want to eat. Pouring water helps to loosen up the rice further.