Abstract: A capsule for preparing drinks by passing a liquid through a powdered substance (9) contained in a chamber (8) made in the capsule (1). The chamber (8) is delimited on at least one side by at least one filter element (7) having a plurality of through-holes (12) extending from a first face (13) of the filter element (7) facing the inside of the chamber (8), to a second face (14) of the filter element (7). At least at the first face (13), the through-holes (12) have inlet sections (15) extending according to a main trajectory of extension and each having a length, measured along the main trajectory of extension, greater than their width, measured transversally to the main trajectory of extension.