A lever-operated espresso machine makes use of a spring-piston mechanism activated by a hand lever to generate the stress required for brewing. This direct management over stress profiling permits the barista to control the extraction course of, influencing the flavour profile of the ensuing espresso. A basic instance entails elevating the lever to pre-infuse the espresso grounds after which step by step decreasing it to regulate the circulation of water by the espresso puck.
This hands-on strategy presents a singular degree of engagement with the brewing course of and infrequently ends in a richer, extra nuanced espresso. Traditionally, lever machines have been the predominant model of espresso makers, previous automated pump-driven methods. The resurgence of their recognition displays an appreciation for the craft of espresso making and the potential for higher management over taste extraction.