100 cup of milk tea needs 200 ice cubes. Assuming that each cup of milk tea uses 500 ml cups, which need 80% ice degree, and the volume of each ice is 2 cubic centimeters, 100 cup of milk tea needs 32,000 cubic centimeters of ice. To convert 32,000 cubic centimeters into standard ice cubes with a volume of 1600 cubic centimeters, 200 standard ice cubes are needed.