Researchers have discovered and analyzed DNA from the world's oldest cheese, found with the Tarim Basin mummies in China, dating back 3,600 years. The study revealed that the cheese is a type of kefir,

When the 3,600-year-old coffin of a young woman was excavated in northwestern China two decades ago, archeologists discovered a mysterious substance laid out along her neck like a piece of jewelry.

A 3,600-year-old coffin was opened in the Xiaohe Cemetery in Xinjiang, China, during an excavation in 2003 - 21 years later, a team found a substance identified as kefir cheese.