Rinse the rice and whole grains thoroughly.
Soak the rice and whole grains in water for about 30 minutes.
Put the soaked rice and whole grains into a pot or electric rice cooker.
Pour water (1.2 to 1.5 times the amount of rice and grains).
Add a suitable amount of salt (optional).
Cook the rice.
Once done, let the rice steam for 5 minutes.