This group can be found on many machines today and is a very temperature stable brew group, thus its popularity. Introduced by Faema in 1961 on the E61 machine, this group head revolutionized the espresso industry by providing a thermically stable method of espresso preparation.

Today the E61 group or versions of it can be found on several brands of machines and still manages to be one of the best groups available. This is a case of technology being way ahead of its self I suppose, and the fact that "If it's not broke don't fix it".

The E61 group is a massive chunk of brass, when assembled and ready to place on a machine it weighs in at 9 lbs. This weight mass contributes to its ability to maintain a consistent temperature. The other function that helps with this temp stability is the thermo syphon function; this is a function of water circulation that reduces hot spots within the group head. A very simple system that is worth its weight in creama.