An espresso machine is a device designed to brew strong coffee by forcing hot water through finely-ground coffee beans. This process creates a concentrated shot of coffee 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 consist of a water reservoir, a pump, and a brewing group. The pump generates the pressure needed to extract flavors from the coffee grounds, while the brewing group holds the coffee during the extraction process. Many espresso machines also feature steam wands for frothing milk, enhancing the versatility of coffee preparation.