Group Head

Short Description:
Component of an espresso machine where coffee extraction occurs; holds the portafilter in place.

Long Description:
The group head or "extraction head" is the part of the espresso machine (coffee maker) where the extraction takes place. It holds the portafilter and ensures that the water passes evenly through the ground coffee. This component is often made of metal for optimum temperature distribution and must be cleaned regularly to maintain the quality of the coffee.