Home espresso grinders play an important role in the final result of an espresso. Depending on the needs, there is the choice of classic models with dosing, or on demand for fresh coffee. The houses Gaggia and Belogia are excellent choices in both cases. Home espresso grinders must be kept clean so that the coffee oils do not "stick" to the blades. This is important for the longevity of the knives, but also for the correct grinding grain size. We should either loosen and clean them once a month or so, or sooner, use PulyGrind, without having to disturb anything in the grinder. The cleaner is in powder form and cleans the knives as it grinds coffee. Knives must be changed once a year, depending on the use of course.