Method for brewing beverage and cartridge containing infusible material

A cartridge for connecting to a brew chamber for brewing a beverage, comprising a first element (51) and a second element (71),

• wherein the first element (51) comprises a side wall (52) and a bottom wall (53),
• wherein the side wall (52) and bottom wall (53) are made from a water-impermeable material,
• wherein the bottom wall (53) contains a protuberance (54) that directs to the outside of the first element (51),
• wherein the bottom wall contains an opening (55),
• wherein the opening comprises a filter (56) which is permeable to water,
• wherein the top is optionally closable by a seal (58) and which is attachable to the upper rim (59) of the side wall (52),
• and wherein the bottom wall (53) comprises one or more notches (60) directed to the inside of the first element (51),
• and wherein the second element (71) comprises a bottom wall (72),
• wherein the bottom wall (72) is made from a water-impermeable material,
• wherein the bottom wall (72) comprises an opening (73) which is able to interlock with protuberance (54) in order to create a water-tight connection,
• wherein the bottom wall (72) contains one or more protuberances (74) which are able to interlock with the corresponding one or more notches (60),
• and wherein the second element (71) is moveable relative to the first element (51) about the corresponding notch (60) and protuberance (74).