1, plastic wrap: put some water in a fresh-keeping bag, tie it with a rope, and then fill it with water. Fill them in turn, and then put them in the refrigerator for freezing. Just break the bag when using it.

2. Jelly box/yogurt box: use the eaten jelly shell or yogurt box, clean it once, then put it in water and put it in the frozen layer of the refrigerator.

3. Beverage bottle: A beverage bottle filled with water in the freezer can also be made into good ice cubes.

4, biscuit plastic box: Many biscuit plastic boxes are divided into blocks, cleaned, and then filled with water and put in the refrigerator.