People often ask why dry ice smokes. It's not smoke, it's fog. Dry ice is a solid substance formed after carbon dioxide gas is cooled and pressurized, and the temperature is MINUS 78.5 degrees. Compared with the surrounding environment, the temperature of dry ice is extremely low, and it will absorb a lot of heat when it sublimates from solid to gas. At this time, the air near the dry ice will quickly cool and condense into liquid. Because air is an invisible gas, what we see now is the water mist formed by air condensation. Compared with the surrounding air, water mist forms faster, which makes people feel the smoke of dry ice, as well as cold drinks in summer.