Chinese food is the world's oyster

In Fujian, an oyster has many lives. Layered with cabbage, laver and slices of pork, then coated in rice batter and fried, it becomes a golden, crispy oyster fritter. Dropped into a bowl of laohua, a local rice-noodle soup, it adds another layer of briny sweetness.

As China's largest oyster-producing province, Fujian has developed many methods of preparing the humble shellfish, from frying and boiling to steaming and more. But the oyster is only one chapter in China's long pursuit of xian, a culinary ideal encompassing umami, freshness and a broader sense of savory deliciousness.

Generations of Chinese chefs have transformed nature's bounty through accumulated knowledge, heat and time.

Now streaming on Tencent Video, Oyster Sauce: A Drop of Umami is China's first food and culinary culture documentary devoted to oyster sauce, taking xian as the starting point for a journey across mountains and seas.

Produced by Tencent Video and co-produced by DOClabs Beijing, the documentary traces the history of oyster farming, the origins of oyster sauce and the evolution of regional flavors, while exploring how Chinese cuisine has traveled around the world.

Through fishermen, chefs, scientists, and families, the series traces Chinese food culture across generations.

"When we make food documentaries, we often use something delicious as a pretext, hoping that audiences will see richer and various ways of living," says Chen Xiaoqing, the documentary's chief producer.

"What we really hope people will learn is why people eat certain foods, why they love certain flavors, and how much love, craftsmanship and time go into creating them."

The first episode begins deep in the Cangshan Mountains in Dali, Yunnan province, where an 11-year-old girl follows her grandfather into the forest in search of black tiger's paw mushrooms.

Mushrooms have long been regarded in China as a mountain delicacy. Although ancient people did not understand the chemistry behind umami, generations of experience taught them to recognize the distinctive value of fungi. Modern food science has shown that free amino acids and taste-active nucleotides in mushrooms work together during cooking to create rich, complex flavors.

The camera then travels to Zhengzhou, Henan province, where a local restaurant offers another example of Chinese culinary ingenuity.

To make a broth that is both clear and flavorful, the cook finely minces chicken breast or lean pork, mixes it with water, and adds it to the boiling broth. The meat forms flocculent masses that absorb suspended particles, blood foam, excess fat, and other impurities.

Known in Chinese cooking as saotang, or "sweeping the broth", the technique appears to be an exercise in subtraction, but ultimately allows the broth's flavor to emerge with greater clarity.