We see in a lot of things, used for various purposes. But have you ever asked what is dry ice is made of? Because of its unique characteristics, dry ice is used in a lot of different things. What are these characteristics? There are basically three that are noteworthy. One, dry ice is much colder than regular ice and thus is a more efficient and faster cooling agent. Two, it does not leave any liquid or chemical residue, which means that it can cool items that would not do well with contact with water or other chemicals. Three, it displaces oxygen, one of the main agents in decomposition without affecting taste, texture and smell of the items that it is stored with, making it perfect for any kind of food.
But just what is it? Basically, dry ice is solid carbon dioxide. The same gas that we exhale. The process of making dry ice entails collecting, pressurizing and refrigerating carbon dioxide until it becomes liquid. After this, the liquid is depressurized, allowing for some of it to vaporize, lowering the temperature of the remaining liquid even further, transforming it into a snow like solid that can be further pressurized to be molded to shapes ready for commercial or industrial use. So there, that is the basics of understanding dry ice, a commodity that is used in food preservation, frozen goods transportation, smoke machines, even in plumbing projects, one of the most visually appealing things to be so useful in so many ways.