How do refrigerators work?

Have you ever thought about how convenient it is to have a refrigerator in your kitchen? Imagine what it would be like if you didn’t have one - it would be a lot of work to keep milk, butter, eggs, and everything else cold enough to eat! Refrigerators do not rely on ice to keep the temperature cold, like a cooler or an icebox. Instead, they use a process that involves refrigerant gas. The refrigerant gas passes through pipes in the refrigerator, becomes liquid, and evaporates, which absorbs heat from the food and makes the air cooler. This process continues over and over again, keeping the inside of the refrigerator the same cool temperature.