1. Wrap the ice powder seeds with gauze, tie them tightly, and hydrate the lime with 50g of water.

2. Knead the gauze bag in cold boiled water. While rubbing, slippery juice will flow out of the gauze, and the rubbing will stop in about 5 minutes.

3. Slowly pour in lime water and stir with a big spoon.

4. Let it stand for two hours and solidify into ice powder.

5. Scoop the frozen ice powder into a bowl, open it with a spoon, melt the brown sugar with boiling water, let it cool, add a proper amount of brown sugar water to the ice powder, and stir well.