180 days. The shelf life of most lactic acid bacteria products frozen at low temperature in Iraq is 2 1-30 days, while the shelf life of normal temperature lactic acid bacteria drinks is 90- 180 days. Shanghai Laiyifen Co., Ltd. was established on 1999. As the founder, practitioner and leader of China's snack food chain management mode, after 10 years of development, it has nearly 2,800 stores in 24 provinces and municipalities including Jiangsu, Zhejiang, Shanghai, Beijing and Tianjin.