Please help me look at the big black spots on the bottom cover disk inside the rice cooker. Maybe the heat preservation time is too long, or the cooking is too hot, so you can't buy it.
The black spots on the disc of the rice cooker are caused by the unclean bottom of the inner liner of your rice cooker, which will lead to poor contact between the inner liner and the disc and damage the rice cooker, so when cooking, you must pay attention to the cleanliness of the bottom of the inner liner to avoid any impurities including water. These will affect the service life of rice cookers. In this case, the black ball can be cleaned with detergent and pot ball, and there is no problem in use.