Air leakage loses protection. According to the query of Kyushu Drunk Catering Network, the packaging bag of ice powder bag has become flat, which proves that ice powder loses its protection due to air leakage and there is a risk of deterioration or deterioration. Please don't eat or buy it. Ice powder, also known as bean jelly in some areas, is a famous snack that originated in Yunnan and Guizhou and then introduced to Pengshan, Sichuan. It is quite popular in Yunnan, Guizhou, Sichuan and Chongqing, and it is a famous summer snack.