A beer tap is a device used to dispense beer from a keg or cask. It typically consists of a handle, a spout, and a mechanism that controls the flow of beer. When the handle is pulled, it opens a valve that allows the beer to flow out, making it easy to serve drinks in bars, restaurants, and at home. Beer taps come in various styles and designs, often featuring unique branding or artwork. They are commonly found in establishments that serve draft beer, and they can be connected to a refrigeration system to keep the beer cold. Proper maintenance is essential to ensure the quality and taste of the beer served.