The conditions of the day, such as the state of the season, the weather, and the rice, are necessary to make a rice cracker delicately adjusted. In addition to the control by the system, the sense of the person is an important factor to make use of the taste of rice which is the material and to finish it to a flavorful rice cracker. While watching the entire process, it is essential to check the five senses that are always in good shape.