Refrigeration refers to a process in which heat is removed from an object or space, typically using a cooling system. This can involve the use of mechanical refrigerators or natural methods such as evaporative coolers and ice houses. The goal of refrigeration is to lower the temperature of the item being cooled below its surroundings, thereby reducing its temperature to a level at which it can be preserved for an extended period without spoiling. This process is commonly used in food storage, medicine storage, and other applications where preservation is necessary.