What are the main characteristics of grain culture?

First, diet thought, consciousness and spirit: for example, China's consciousness of saving grain in ancient times;

2. Tangible items related to food: such as agricultural tools, food processing tools, cookers, storage tools/buildings, bills, books, poems, paintings and calligraphy, etc.;

Third, food-related organizations, systems, customs, beliefs, holiday norms and extended social functions, such as the ancient regular warehouse, compulsory warehouse and social warehouse system, Zhu Xi's social warehouse method, relief system, food processing and cooking methods, eating new festivals, and agricultural gods.