The solubility of rock sugar decreases after boiling, and it is heated and crystallized after precipitation. Due to the continuous evaporation of water, the solubility of rock sugar in water is decreasing, and a large number of rock sugar is precipitated. White sugar, rock sugar and brown sugar are all extracted from sugar cane and sugar beet, and all belong to the category of sucrose. The original refining method is the same, and the reason why it becomes different colors and different kinds of sugar is because the degree of decoloration is different in the final refining.
The higher the degree of refinement, the whiter the color and the higher the purity, but the sweetness will not increase because of the high purity. Brown sugar is a mixture of sucrose and molasses, and white sugar is made of brown sugar through several processes such as washing, centrifugation, honey separation and color peeling. Rock sugar is formed by recrystallization of white sugar under certain conditions. Their chemical composition is sucrose.
Baked pear with rock sugar is a very unique food and a healthy food. This kind of food is also very simple to make. You just need to prepare a Sydney, hollow out a part, add rock sugar, and add red dates or longan according to your personal preference.