Do you use the rice cooker to steam things or keep them warm? How do you know the steam is ready?
See how much the amount of the steamed food (Hou Bo) to determine the time: steamed fish shrimp 8~10 minutes, 5~6 minutes, steamed 15 minutes or more, with about 25 minutes.
I can only tell you how many kinds of food I usually steam here, and I should also accumulate experience in my daily life. Ha-ha！
With rice cooker steaming food, be sure to press the cooking, boil the steam steamed food, so there must be sufficient water to ensure that, otherwise, the water burned dry, and food is not cooked.
