Rock candy is a crystal copy of sugar. Natural rock sugar has white, yellow, light gray and other colors. In addition, there are all kinds of colored rock candy in the market (mainly for export), such as green, blue, orange, red, crimson and other colors. Because its crystal is like ice, it is named rock sugar. The composition of rock sugar is glucose containing crystallization water, which is the same as the composition of white sugar decomposed in the body; Therefore, rock sugar can replace white sugar, can be used as medicine, and can also be used as candy.
Extended data:
The raw materials are mostly turnips. Turnip pickled with salt has a strong salty taste and can be preserved for a long time. You can eat it raw. Farmers in Hetao area have been eating red pickles so far. Even children who go to school in rural areas often put it in their pockets as snacks. Red pickles are salty and can be eaten dry or soaked. They are particularly chewy.
Red kimchi is light. Red pickles weighing about 0.5 Jin are as big as four or five apples. If you eat them as pickles, a person can eat them for dozens of days. Red pickled vegetables are a kind of food to help the poor in the season when green and yellow are not available. Therefore, farmers in poor mountainous areas make red pickles every year.
References:
Baidu Encyclopedia-Red Pickles