The Espazzola fits most professional and semi-professional machines.
It is important that the portafilter used in your machine features two cams and that the diameter of the shower is between 56 mm and 58 mm. The few known exceptions to this rule are listed on our shop page.
The cleaning of group-heads in lever espresso machines with the Espazzola is very easy and efficient.
Since the rim of the group-heads of hand lever machines are narrower in most models than those of pump driven machines, mounting of the Espazzola into the group-head is somewhat more difficult during first uses, until the cams have worn out a little and adapted to the smaller diameter.
In our tests, the Espazzola shows little wear and tear after roughly one year of daily use. It seems realistic to assume a useful life span of considerably more than one year.
However, in rare cases it can happen that the membrane tears - typically when it is pinched between cup section and group-head. In most cases, though, a cracked membrane remains usable.
The cleaning agents of all common manufacturers are compatible with the materials used in the Espazzola and can be used together with our tools without any problems.
However, with the Espazzola the group-head will get clean quickly and easily even without the use of chemical agents. We therefore recommend that no additional detergents are used.
The shape of the Espazzola prevents pressure from building up inside the cup. This is intentional because the plastic would not withstand the high internal pressure and would burst. That’s why you can’t backflush with the Espazzola.
However, we do think that back-flushing with successive bursts at short intervals is not very efficient. The chemical detergents used in this process take at least several minutes, rather hours, to dissolve the stubborn coffee deposits attached to the inside of the shower screen and to the walls of the water supply pipes. In the usual back-flushing process, however, the cleaning solution only remains in the brewing group for a few seconds and is therefore largely ineffective.
We recommend cleaning the group-head daily, possibly several times a day, with the Espazzola alone. We use back-flushing with detergents only at longer intervals (approximately once a week) and we leave the water with the dissolved detergents in the group-head for at least several minutes after the first burst, then rinse thoroughly. In our experience, the group-head remains significantly cleaner with considerably less effort this way.
PLEASE NOTE: In case of prolonged exposure, lubricating greases can also be removed from the hydraulic valves. This can result in increased mechanical wear. If in doubt, please ask the manufacturer of your espresso machine.
We recommend rinsing the Espazzola with clear water after use.
If necessary, it can also be easily cleaned in the dishwasher. Alternatively, the Espazzola can be soaked in a cleaning solution with one of the usual cleaning agents for group-heads.