A brewpub array is a combination of ales, taps, and kegs that are used to serve beer. Ales are beers that are brewed with top-fermenting yeast, which gives them a unique flavor. Taps are the devices used to dispense beer from a keg. Kegs are large metal containers that hold beer and are connected to the taps. Together, these three components make up a brewpub array, which is used to serve beer in pubs and restaurants.