Refrigerators, or fridges, are common household fixtures engineered to maintain internal temperatures below the temperature of the room through the use of thermal insulation and coolant systems. For food storage, low temperatures reduce the ability for bacteria to reproduce and slow spoiling.

Refrigerators, or fridges, are common household fixtures engineered to maintain internal temperatures below the temperature of the room through the use of thermal insulation and coolant systems. For food storage, lower temperatures reduce the ability for bacteria to reproduce and slow the rate of food deterioration and spoiling. These benefits make refrigeration essential for industrial, commercial, and private home use. Today, refrigerator design has advanced to include adjustable shelving, water and ice dispensers, controlled storage zones, freezers, and may even integrate digital monitors and video displays.