Tofu: A Quiet Revolution in Vegetarian Protein

The most widely circulated folk account of tofu's origin holds that Liu An, Prince of Huainan during the Western Han dynasty, stumbled upon the method for coagulating soy milk while pursuing alchemical immortality. This story, however, is largely a legend attributed to him by later generations; solid textual evidence for tofu does not emerge clearly until the Tang and Song dynasties. Whatever the exact origin, the spread of tofu was without question a major event in the history of Chinese food.

Why Tofu Mattered So Much

In a premodern society where meat was scarce and expensive, tofu offered a concentrated plant protein made from cheap soybeans, dramatically improving the nutritional profile of ordinary people — and especially of monks and devotees who abstained from meat over the long term. It is fair to say that the spread of tofu was one of the material foundations that allowed vegetarianism to endure as a sustainable way of life over the long run.

From a Single Dish to an Entire System

Tofu's value lies not only in itself, but in the whole processing system it gave rise to:

• Derivatives such as tofu skin, dried tofu, and yuba greatly enriched the textural range of vegetarian food
• Fermented tofu expanded the possibilities for vegetarian seasoning
• Tofu's malleability made it an ideal medium for meat-mimicking vegetarian dishes
• Tofu-making techniques spread around the world along with Chinese emigrants

A block of tofu, humble as it may look, in fact carries within it the culinary wisdom of a people responding to resource constraints while still pursuing nutritional balance — a historical weight that deserves to be recognized anew.