Or chaff, or rice, the high probability is to weigh a catty of rice first and then grind it into rice. How much does rice weigh at this time? For example, when rice comes out, it is 8 Liang, 7 Liang and 6 Liang. Generally speaking, it can be 6/7 meters, that is, 6 or 7 meters. Then the rice chaff is 3/4. Generally, rice milling is calculated like this! ! !