Liquor pourers are a standard item at many bars. They fit snugly into the mouths of liquor bottles and serve as control devices to maintain a smooth flow of liquor, essential for a busy bar environment where accuracy is key. Some health departments require that liquor pourers be kept covered at all times, often with items known as pourer covers. These accessories provide protection against fruit flies and dust, and may satisfy safety requirements as outlined by your health department. Spirits and liqueurs can often be sticky and sweet, not only attracting local bar flies, but worse: fruit flies. These tiny pests sneak in from the outdoors and feed on the sweet stuff in your bar. They can even fit inside liquor pourers, which can be a big problem for bar owners. Health departments often mandate the use of pourer covers to keep the pests out of your product. Typically, the pourer covers are made from plastic and simple sit atop the liquor pourers. When the bartender needs to pour a drink, he or she simply removes the cover, pours the drink, and then replaces the cover before putting it back on the shelves. One pourer cover is designed to double as a shot glass, which some bartenders, or even home bar aficionados, may find handy.