Jiayun candy. Jiayun candy has lemon flavor and is coated with a layer of white frost. It is very sour. It is a famous brand of fruit candies in Germany. So when I was a child, I ate a kind of fruit candy with white frost on it. It was imported and called Jiayun candy. Sugar, a sweet substance for consumption, is extracted from rice, wheat, sugar cane, beets, etc.