Coffee group heads

To pull the best shots possible, baristas need to learn everything they can about coffee extraction. From grind adjustment to water temperature, these factors can all influence the flavour of coffee in the cup. However, while trying to grasp these complex concepts, many baristas can skip over a key component of espresso extraction.

Following our last Tech Talk where we discussed the huge growth in technological advancements within modern coffee machines, this time we are going back to the basics of an espresso machine and exploring the humble coffee group head.

Essentially, the group head is the part of the espresso