REO / All-in-one Steamer

There are some obvious problems with existing steamers. The following is about Chinese Traditional Steamers: Firstly, users have to put an extra bowl/container into the steamer and then take it out after cooked. Secondly, the time duration is controlled by the amount of water added, however, it is not clear that how long exactly the process would be; users had to wait for the sign. And western steamer baskets also have similar problems.
Therefore, this piece of design targets to solve the problems, and the outcome is "REO", the all-in-one steamer.