6 ideas
Dense populations on limited arable land forced Chinese agriculture to maximize calories per acre, which meant prioritizing grain crops like rice, millet and wheat over livestock. Raising animals for meat converts plant calories inefficiently, so meat became a scarce flavoring rather than a centerpiece, and the cuisine was built around a grain staple supplemented by small amounts of other foods.
The Chinese meal is organized around fan (grain or starch staple) and cai (dishes of vegetables, meat or fish that accompany it). Cai exist to make large quantities of fan palatable, so strong flavors, sauces and small cut pieces serve the function of helping a starch-heavy diet go down.
Deforestation and scarce firewood made fuel expensive, which rewarded cooking techniques that use heat briefly and efficiently. Cutting food into small pieces and cooking them fast in a thin-walled wok over intense heat minimizes fuel use, so a signature technique of the cuisine is partly an adaptation to an energy constraint.
Rather than treating a cuisine as an expression of arbitrary cultural preference, read its features as solutions to environmental and demographic constraints: land, water, fuel, labor and population density. Taste and tradition then look like adaptations that stuck, which explains why certain foods dominate and others are marginal or absent.
Chinese agriculture achieved high yields by tightly integrating components: pigs and poultry fed on scraps and wastes, their manure and human night soil fertilized fields, and fishponds were linked to mulberry trees and silkworms. Recycling nutrients back into the land sustained high yields on the same plots over centuries without external inputs.
Chinese dietary medicine classifies foods as heating or cooling (a folk extension of yin–yang), independent of actual temperature, and people balance these qualities to maintain or restore health. Food choices, including what to eat during illness, pregnancy or particular seasons, are decided by this balance, making the diet a daily form of preventive medicine.