Three types of ice are used in the making of ICE!
Clear, "crystal" ice is the most difficult to make. It is created using highly filtered de-ionized water. It takes 3 days to freeze the 45 gallons of water used to create each 400-pound ice block. By freezing it slowly, the molecules are able to line up perfectly, similar to a diamond or crystal. In fact, this ice is so flawless it is often compared to Waterford Crystal.
White ice, which looks like compacted snow, makes up a small part of the attraction, but is invaluable when carving a snowman. This ice is frozen quickly, giving it a cloudy look, much like the ice made in a home freezer. By freezing quickly, the molecules do not have time to perfectly align.
Colored ice, dyed one of nine brilliant colors, is used for highlighting and accenting many of the ice sculptures. These giant popsicle-like blocks are made with simple food coloring that is added during the freezing process. Though it may sound simple, there's a catch ... The water must be stirred constantly to ensure a consistent color throughout the block when it is cut.