Both sizes of pots are good.
1. 32cm steamer: The 32cm steamer has a larger capacity and can accommodate more ingredients. This is useful for occasions where large amounts of food need to be steamed, such as family meals or banquets. Ability to process more ingredients at one time, saving time and energy. And it can not only be used to steam food, but also can be used to stew soup, steam cakes, etc., and its functions are more diverse.
2. 30cm steamer: The 30cm steamer has a moderate capacity, which can meet the daily cooking needs of the family without being too bulky, and can easily steam various ingredients. Due to its moderate size, the 30cm steamer is relatively convenient to move and clean.