Egg cooker, this is the kind of artifact that has been used, and I will regret why it didn't appear in my life earlier! Very water-saving, very fast, and it will automatically cut off power. Put it on the table at night and ask my roommate who got up early to open it for me the next day, so that I can eat when I get up. And very tender, don't worry about the problem of poor control of boiling water.