Select fresh and full-fledged Li Guo fruit, remove the rot and diseases and pests, and clean it. Soak the fruit with hot sodium hydroxide solution at a concentration of 2% and a temperature of about 95°C for 3 to 5 minutes. Rinse the remaining lye with water and place in a 5% salt solution for 20 minutes. Remove and then put into 0.1% sodium sulfite, 0.1% vitamin C, 0.1% citric acid and 0.1% calcium chloride mixed solution, color protection hardening for 20 minutes, clean water flush residual residual color expansion solution. The color-protected Li Guo was added to the boiled 40% sugar liquid (containing sodium benzoate and 0.5% agar), boiled for 5 minutes, and immersed at a constant temperature of 65C. Drain the sugar liquid on the surface of Li Guo and bake it at 45-55°C. During this time, it is necessary to turn over the pan to make the baking and heating even. After drying, it can be packaged. Fingerprint Recognition Time Attendance Fingerprint Recognition Time Attendance,Employee Fingerprint Attendance Machine,Wall Mounted Fingerprint Attendance Machine,Fingerprint Attendance Equipment Chongqing Huifan Technology Co., Ltd , https://www.hfsecuritytech.com