Put it on the bottom of the in-barrel and use it as steaming pot.
There is quite a lot of height of this steaming dish itself, so you can put more moisture.
There are 20 and 22 dual use, but for 20 cm perfectly. When used in a 22 cm pot, there is a considerable gap around.
If it is potatoes or vegetables, it will not be a problem, but in the case of beans or rice ×.
I feel that I can use it in combination with steamed cloth.