A fridge, short for refrigerator, is an essential kitchen appliance used to keep food and beverages cold. It works by removing heat from the interior, maintaining a temperature typically between 32°F and 40°F (0°C to 4°C). This helps slow down the growth of bacteria, preserving the freshness of perishable items like fruits, vegetables, dairy, and meats. Most fridges have a freezer compartment, which operates at a lower temperature to freeze food items. They come in various sizes and styles, including top-freezer, bottom-freezer, and side-by-side models, catering to different household needs and kitchen layouts.