With a history of 1300 years, it is the local food of Changning. It is made from the fruit of ficus pumila. Method: peel the fruit, cut it, insolate it and put it inside a hop-pocket, marinate and rub it again and again to squeeze all the juice out; take out the pocket and wait for half an hour; the water has become crystal cool agar jelly. Cut it into pieces or sticks and add sugar, vinegar, garlic, capsicum, etc. The cool agar jelly is also called “snow in June”, “crystal jelly”.