A used capsule moving assembly includes a capsule blocking device leaving a capsule opening accessible, a used capsule moving device supporting the capsule blocking device and moving the capsule blocking device by taking it in front of a cutting device to partially open a capsule lid, in front of an emptying device to empty a used or extracted or exhausted substance, including used ground coffee, from a capsule body without breaking or destroying the capsule body, and in front of a capsule collection device to collect the capsule body emptied of the used or extracted or exhausted substance. The used capsule moving device displaces the capsule blocking device along a linear path at least when the capsule blocking device is placed so as to take the capsule body with the longitudinal capsule axis thereof in front of each of the cutting, emptying, and collection devices.