A lever-operated espresso machine makes use of a spring-piston mechanism activated by a hand lever to generate the strain required for brewing. This direct management over strain profiling permits the barista to govern the extraction course of, influencing the flavour profile of the ensuing espresso. A traditional instance includes elevating the lever to pre-infuse the espresso grounds after which step by step reducing it to manage the circulation of water by the espresso puck.
This hands-on strategy gives a novel stage of engagement with the brewing course of and infrequently ends in a richer, extra nuanced espresso. Traditionally, lever machines have been the predominant type of espresso makers, previous automated pump-driven methods. The resurgence of their reputation displays an appreciation for the craft of espresso making and the potential for better management over taste extraction.