System, set of capsules and method for preparing a beverage by centrifugation

A set of capsules for preparing beverages by centrifugation of a capsule in a centrifuging brewing device comprising:

• a set of individual capsules each for selectively delivering a beverage, each capsule containing at least one beverage substance;
• each capsule of the set comprising a body having an enclosure containing the beverage substance and an upper wall for closing the body;
• each capsule includes a flange-like rim designed to form, in cooperation with the centrifuging brewing device, a restriction valve for the centrifuged beverage coming out of the capsule;
• the geometry of the rim differs in each capsule to form, alone or in cooperation with the centrifuging brewing device, a restriction or restriction valve for the centrifuged beverage to adapt the back-pressure of the restriction valve for at least two capsules of the set.