FGE Power subsidiary to build a new 726 MW combined-cycle natural gas-fired power plant near the community of Westbrook, Mitchell County, Texas. FGE Power subsidiary to build a new 726 MW combined-cycle natural gas-fired power plant near the community of Westbrook, Mitchell County, Texas.
Preparing the Machine and Portafilter. 1  1. Heat the espresso machine. 2  2. Fill the machine's tank with water. 3  3. Remove the portafilter and put it on a scale.  4. Dose the 1  espresso. 5. Tamp the espresso in the portafilter.
Mechanically, there are two basic types of espresso machines: steam-driven and pump-driven. Steam-driven machines. The very first espresso machines worked on a steam-pressure basis, and theyâre still in use today.With this type of machine, steam or steam pressure is used to force water through the coffee grounds and produce espresso.echanically, there are two basic types of espresso machines: steam-driven and pump-driven. Steam-driven machines. The very first espresso machines worked on a steam-pressure basis, and theyâre still in use today.