Dry ice is only useful when it's still frozen, so make sure you know how much time you have before it evaporates. Luckily, ...

Dry ice is a great way to keep food cold, but it isn't without some safety concerns. Before you pack a cooler with dry ice, here's how to do it safely.

How Dry Ice Is Made. The short answer is that dry ice is the solid form of carbon dioxide. That would be CO2, for all you scientists out there, the stuff we exhale or put into water to make ...

Dry ice is solid carbon dioxide. At its surface temperature of -109.3 degrees Fahrenheit (-78.5 degrees Celsius), a frozen block of dry ice transforms directly into a gas, skipping the liquid ...