Rural big-mat steaming bowl is a special bowl for cooking food, which is usually used for cooking rice and steaming steamed bread in rural families. There are several factors to consider when choosing the appropriate bowl size:

1. Family population: If the family population is small, choosing a smaller steaming bowl can better adapt to the food quantity. Generally speaking, families with 2-3 people can choose bowls with a diameter of 20-22 cm, and families with 4-6 people can choose bowls with a diameter of 24-26 cm.

2. Cooking food types: If you often cook large pieces of fish, meat and other ingredients, it will be more suitable to choose a steaming bowl with a larger diameter, which can accommodate more food. If you mainly cook snacks, steamed bread, etc., choose a steaming bowl with a smaller diameter.

3. Kitchen utensils and steamer size: When choosing the steamer size, you also need to consider the steamer size of your own kitchen. Generally speaking, the size of the steamer will also limit the size of the steamer bowl, so pay attention to the matching with the existing steamer when buying the steamer bowl.

It should be noted that the above are just some general suggestions, and the specific steaming bowl size needs to be decided according to personal circumstances and preferences. We can comprehensively consider the family population, food types and actual use, and consult the relevant sales staff when purchasing to get more accurate suggestions.