An espresso machine is a device designed to brew strong coffee by forcing hot water through finely-ground coffee beans. It typically consists of a water reservoir, a pump, and a brewing group. The machine can produce a concentrated shot of coffee known as espresso, which serves as the base for various coffee drinks like cappuccino and latte. Espresso machines come in various types, including manual, semi-automatic, and fully automatic models. Each type offers different levels of control over the brewing process, allowing users to customize their coffee experience. Many machines also feature steam wands for frothing milk, enhancing the versatility of coffee preparation.