Tag Archives: VBM

Customer issue: Why do the pump and respective brew pressure gauge oscillate during an espresso extraction on traditional espresso machines (not super automatics)? This is typically for vibration pump espresso machines, not rotary ones. The usual suspect is the grind fineness not being consistent or coffee beans that are too fresh (not degassed, but to […]

How to Maintain your VBM E61 Grouphead Some dual boiler espresso machines and heat exchange espresso machines feature an E61 grouphead, which defines a modern size and fitting of a portafilter (typically 58mm) to hold your ground coffee. One of the espresso machine brands, Faema, created the original E61 grouphead, but some espresso machine manufacturers […]