Quick Mill made some pretty major changes to their ever popular dual boiler espresso machine - the QM67. It still has dual boilers, a vibratory pump and is draped in gorgeous stainless steel - so what's different? A good amount.
First, let's go over the benefits of a dual boiler espresso machine.
Basically, a dual boiler is ideal for someone looking to brew and steam simultaneously, brew multiple drinks back-to-back with no pressure loss or rebound time or someone that needs a fast turnaround time (coffee cart owners, perhaps).