A capsule for preparing beverages, in particular coffee, is described, comprising a containing body having a first portion, the containing body defining an internal volume adapted to contain a substance to be infused, the first portion being composed of: a first perimeter edge; a first central portion onto which at least one external pressing force is applied; a first crown portion collapsible towards inside the containing body under the action of the pressing force exerted at least on the first central portion and/or on the first crown portion, the first crown portion being interposed between the first perimeter edge and the first central portion, the first crown portion being connected on its perimeter to the first perimeter edge by interposing a first bending line and being connected to the first central portion by interposing a second bending line.