The reservoir that holds the water supply for brewing espresso is a crucial component of any espresso machine. This container can vary in size and material depending on the machine’s design and intended use, ranging from smaller, removable tanks in domestic models to larger, plumbed-in systems for commercial applications. Typically constructed from clear plastic or stainless steel, these reservoirs allow users to monitor the water level easily.
Maintaining an adequate water supply is essential for consistent espresso production. A properly filled reservoir ensures the machine can generate sufficient steam and hot water for brewing and other functions like milk frothing. Historically, espresso machines relied on manual filling, but modern machines often incorporate features like automatic shut-off mechanisms to prevent damage from running dry. This evolution reflects the increasing focus on convenience and safety in design.