A self-contained coffee brewing appliance utilizes an internal reservoir to supply water for espresso preparation. This design eliminates the need for a direct plumbing connection, offering flexibility in placement and simplifying setup. Portable models are a prime example, enabling espresso enjoyment in various locations, from kitchens to offices, and even while traveling.
The integrated water reservoir contributes significantly to convenience and portability. This feature makes these appliances ideal for users lacking dedicated plumbing lines for coffee brewing or those desiring a compact and easily movable setup. Historically, espresso preparation required large, plumbed-in machines primarily found in commercial settings. The development of self-contained units with internal water tanks democratized espresso, bringing high-quality coffee preparation into the home and other non-commercial environments.