A built-in wine cooler (also called an integrated wine refrigerator) is a wine storage appliance designed to fit seamlessly into kitchen cabinetry, under counters, or custom cabinetry spaces. Unlike freestanding wine coolers, built-in models vent warm air out the front, which lets them sit flush with cabinets without overheating. Built-in coolers are ideal if you want a clean, integrated look in your kitchen, home bar, or dining space.