With each of the Gaggia bean to cup coffee machines, as an example, when you press the shot button 2 times in fast succession, the machine grinds and pulls the shot two times, so you find yourself with double the espresso from double the bottom coffee. As with the OVP https://fernandoombpd.dm-blog.com/28157175/lavazza-a-modo-mio-voicy-fundamentals-explained