It's good to put rock sugar in the stewed tremella soup. Put it in before it's almost cooked. When the sugar is put in, you can cook it.

The difference between sugar and rock candy:

Rock candy is a crystal replica of sugar, which is made of white sugar by dissolving in water, removing impurities, clearing juice, evaporating, concentrating and cooling.

Crystal sugar is warm, nourishing yin and promoting fluid production, moistening lung and relieving cough, and has a good auxiliary therapeutic effect on dry lung cough, dry cough without phlegm and expectoration with blood. It has the effects of relieving cough and resolving phlegm, and is widely used in high-grade tonics and health products produced in food and pharmaceutical industries. Old people can also quench their thirst by containing rock sugar. Sweet smell, benefiting qi and moistening dryness, clearing away heat and relieving summer heat, white, yellow, red and crimson in color, crystal ice-like, hence the name rock sugar. The quality of rock candy is the best, pure and transparent.

White sugar and soft sugar are both called white sugar, and the sucrose content is generally above 95%. White sugar is uniform and neat, hard, loose and dry, without impurities. It is the purest variety with the most sucrose in sugar, and it is also an easy-to-preserve sugar. Compared with sugar, soft white sugar has fine crystal particles, high water content, soft appearance and instant melting in the mouth. It is suitable to be directly sprinkled on food and snacks, but it has high water content and is not easy to preserve. Sugar is hot and dry