Pre-drying work: peeling persimmon and stringing it to dry. Adequate sunshine and ventilation are the basic conditions for drying. Tie a string on the drying rack and hang persimmons on the string one by one. There should be a certain interval between persimmons, so that each persimmon can be fully basked in the sun.
Sun-drying: Persimmons should be sun-dried for at least one month before reaching the requirement of frost. Then, the persimmons should be taken off the shelf, cut off their pedicels, spread on a sieve, and wait for frost.
Frosting: Frosting is actually the process of water evaporation and sugar evaporation in persimmon. The process of frosting should not be too harsh by the sun. It is best to dry it during the day and cover it at night, and not too dry. During the day, when the sun is too big, cover the shade cloth. The colder the weather, the faster the frost will come out. In order to make the frost evenly distributed, it is necessary to turn the persimmon from time to time and air it for about 10 days, and the persimmon with frost feet will come out.