Dry ice, is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice a-nd not leaving any residue (other than incidental frost from moisture in the atmosphere).

Dry ice is frequently used to package items that must remain cold or frozen, such as ice cream or biological samples, without the use of mechanical cooling.

A dry ice machine is used to make dry ice. There are dry ice pelletizer machine, dry ice block machine, a-nd etc.

One of the largest mechanical uses of dry ice is blast cleaning. A dry ice blasting machine is used for that. The new development is quickly expa-nding around the world. One syste-m uses small rice size pellets of dry ice shooting them out of a jet nozzle with compressed air. It works somewhat like sa-ndblasting or high-pressure water or steam blasting,with superior results.