![]() ![]() There are no moving parts in this type of equipment, making it easier to maintain. These espresso machines use steam generated by the boiler to force water through the grinds. Steam-driven - The first type of espresso machine was a steam-driven unit.The piston may be manually or automatically driven. These machines work by using a lever to pressurize hot water and send it through a boiler to the ground beans. Piston-driven - A piston-driven machine was first developed in Italy by Achille Gaggia.What are the types of commercial espresso machines? This means that workers do not have to separately grind the coffee. Built-in grinder - A super-automatic commercial machine for espresso includes a grinder.This allows for different sized shots of espresso and for the production of other drinks made of coffee beans. Multiple group heads - Commercial machines have multiple group heads.The automation is accomplished with an in-line flow meter to the group head. The machine may be semi-automatic or fully automatic, allowing it to adjust the machine's pressure and volume. Automatic brewing - In a commercial environment, the volume of brewed espresso and the steeping time are important to customer service.What are the features of a commercial espresso machine? ![]()
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