Generally, the water is slightly higher than the rice 1.5cm~2cm. There is a very simple way to accurately measure the amount of water. Put the ring finger into rice water, and the water should not exceed the first joint of the ring finger. The amount of water is slightly different due to the difference of rice producing area and everyone's taste. If the steamed rice is too dry, you can add a small amount of water and continue to stew for a while.