How to make crushed ice cubes:

First, use the ice box in the refrigerator, pour water in, freeze, and pour out small square ice cubes. .

Second, make tiny crushed ice cubes. Buy some steel sheets, cut them with scissors, and fold them into a cross shape. The length is the same as the small grid of the ice box. Then put it into the grid, pour water and freeze it. The ice cubes will be smaller and thinner.

Third, put the water in the refrigerator into a pestle and mash it after it freezes.

Fourth, crush the ice cubes with a hammer. Wipe the hammer clean before striking it, and wrap it with a clean cloth so you don't have to worry about it being unhygienic.