Young people in China are turning to homemade kombucha, a fermented tea drink, reviving a trend from the 1980s. This revival comes as kombucha gains global recognition as a health product. In Western countries, the drink has gone viral as a commercial beverage, with celebrities like Kourtney Kardashian and Lady Gaga endorsing it. The trend has now reached China, prompting some local drink makers to launch their own kombucha products. Meanwhile, many Chinese youngsters are making kombucha at home and sharing their recipes online. Kombucha is made by fermenting sweetened tea with a culture of bacteria and yeast. It is known for its tangy taste and potential health benefits, though these claims are not scientifically proven. The homemade trend reflects a growing interest in traditional fermentation methods and health-conscious living among Chinese youth.