Chefs use pressure cookers to cope with high altitude, low pressure at advance camp on Mount Qomolangma (2)

A climber has food at the advance camp at an altitude of 6,500 meters on Mount Qomolangma, May 10, 2020. To cope with the high altitude and low pressure at the advance camp, chefs use pressure cookers to prepare food. (Xinhua/Sun Fei)