An automated brewing device featuring an integrated reservoir for holding the water necessary for coffee preparation represents a common household and commercial appliance. These devices range from simple drip brewers to more complex espresso machines, all sharing the common element of a dedicated water supply. For example, a drip coffee maker utilizes a heated element to bring water to a near-boil, which then drips over ground coffee contained in a filter.
The presence of an onboard reservoir offers convenience and efficiency, eliminating the need for manual water refills during each brewing cycle. This feature has significantly impacted the evolution of coffee brewing, transitioning from stovetop methods to automated processes. This self-contained water supply allows for consistent brewing parameters, contributing to a more predictable and often improved coffee quality. The capacity of these reservoirs varies, catering to different consumption needs from single cups to larger batches.