- Availability: Common
A modern commercial espresso machine pumps water at roughly 9 bars of pressure through a finely ground, tamped puck of coffee held in a portafilter. The machine also generates steam for milk texturing. Common Brooklyn café choices are the La Marzocco Linea/Strada, the Slayer, and the Modbar — each with a different temperature-and-flow profile that shapes how a shot pulls.