An espresso machine is a device designed to brew coffee by forcing hot water through finely-ground coffee beans. This process creates a concentrated coffee shot known as espresso, which serves as the base for various coffee drinks like cappuccinos and lattes. Espresso machines come in various types, including manual, semi-automatic, and fully automatic, catering to different skill levels and preferences. These machines typically feature a water reservoir, a pump, and a portafilter where the coffee grounds are placed. Some models also include steam wands for frothing milk, enhancing the versatility of the machine. Overall, espresso machines are popular among coffee enthusiasts for their ability to produce rich, flavorful coffee quickly.