Large bowl (8-9 sun)
If you can use a large bowl well, your cooking will improve at once. For example, even if it is a small portion for one person, if you put it in a large bowl with enough height and margins, the dish will shine even more.
Use a deep bowl for simmered dishes, and a shallow bowl for fish dishes.
The size is suitable for professionals. Please refer to the presentation of your favorite restaurant at home.