1. Generally speaking, when steaming rice, the ratio of rice to water is 1: 1.2 or 1: 1.5. When the moisture content exceeds 1: 1.2, the steamed rice is softer and lower than 1. If there is no special water measuring instrument, it can be used in the rice cooker to make the water less than 1 cm.
There is a particularly simple method to measure the amount of steamed rice water. Put your forefinger into rice washing water as long as the water exceeds the first joint between your forefinger and rice.