Stinky tofu and fermentation
Stinky tofu is a snack made by soaking tofu in fermented brine. During fermentation, microorganisms break down proteins and change the tofu's texture and flavor, producing its characteristic aroma. Brine may ferment naturally or be inoculated with cultures; recipes, methods and colors vary by region and shop. [1]
Changsha style
Changsha stinky tofu is commonly recognized by its dark exterior. Tofu is soaked in fermented brine and deep-fried until crisp outside and tender within, then usually served with chopped chili or chili sauce. Huogongdian is one of Changsha's representative vendors. [1]
Regional styles differ in appearance and serving method. Elsewhere, tofu may remain gray-white or be made from dried tofu, with chili sauce or garlic sauce. The dark, fried Changsha style is one of several local forms. [1]
Huogongdian technique
In 2021, the “Huogongdian stinky tofu making technique” was added to China's national representative list of intangible cultural heritage as item VIII-276, nominated by Changsha, Hunan. This designation concerns a particular technique, not every regional form of stinky tofu. [1]
Where it is eaten
Stinky tofu is commonly sold at night markets and snack streets. Changsha's dark fried version, often paired with spicy seasonings, is a recognizable local street food. [1]