What is a cooler in a bar?

A cooler in a bar typically refers to a refrigeration unit or system used to keep and serve drinks at cold temperatures. The types of coolers used in bars can vary from a basic countertop mini-fridge to a large walk-in cooler. They are essential for storing beer, wine, liquor and other beverages at a desired temperature for optimal taste and serveability. Generally, bar coolers come equipped with adjustable temperature controls, glass doors, and shelves to accommodate different sizes and shapes of bottles. They may also be designed to be visually appealing, with lights and displays that showcase the drinks inside. The proper maintenance of a bar cooler is also important for keeping drinks fresh and preventing spoilage.