Fermented Tofu

Fermented tofu, also known as *furu* or *doufuru*, is a preserved Chinese condiment made by fermenting fresh tofu in a brine of rice wine, salt, and spices. Its origins trace back to the Wei dynasty, where it was developed as a method to preserve tofu in regions without refrigeration. The process involves air-drying tofu cubes, allowing mold to develop, then submerging them in the brine for several months. Key ingredients include firm tofu, salt, rice wine or grain alcohol, and seasonings such as chili, sesame oil, or fermented red rice for color.

A great version is distinguished by its creamy, spreadable texture and a complex umami flavor that balances saltiness with subtle sweetness and a hint of alcohol. The aroma should be pungent but not overwhelmingly ammoniacal. Regional variations abound: white fermented tofu is mild and common in northern China, while red fermented tofu uses red yeast rice for a sweeter, richer taste. In Sichuan, chili oil and Sichuan peppercorns create a spicy version. Mark Wiens, while visiting the Hanzhong Rice Noodle Stall in Han Zhong Shi, China, noted that the local fermented tofu served alongside rice noodles had a "deep, savory punch" that elevated the entire dish. In Taiwan, fermented tofu is often paired with stinky tofu or used as a dipping sauce for blanched vegetables.