1. Take a special mold for making ice cubes, wash it and dry it for later use.
2. Prepare a glass of mineral water or cold water.
3. Pour water into the ice compartment of the mold, be careful not to pour it too full, cover the mold and put it in the frozen layer of the refrigerator.
4. Take it out after four hours, knock on the back of ice climber, and take out the ice.
5. If it is difficult to take out the ice cubes, wash the front of the ice cubes with cold boiled water and repeat step 4.