A virtual restaurant, also known as a ghost kitchen, cloud kitchen or dark kitchen, is a food service business that serves customers exclusively by delivery and pick-up based on phone and online ordering.[1] Virtual restaurants are stand-alone businesses that either operate out of an existing restaurant's kitchen or from a separate kitchen set-up away from a restaurant.[2][3][4] By not having a full-service restaurant with a storefront and dining room, virtual restaurants can economize by occupying cheaper real estate.[5][6] The reduced space lowers overall overhead and operational costs, thus yielding higher profit margins, as the price of the food provided is typically not changed.[7] The virtual restaurant's single kitchen format allows for multiple brands to share kitchen space.[2][8][9]