The invention provides a season container (1) with a slim tube-like-body, used for a straw, the inner of which is suitable for including senson coneentrating agent in a scheduled amount, wherein the coneentrating agent is a solid pill (10) in basically spherical form. The pill is stored in the straw through a filter device with an end cap (11) form, wherein each end cover includes a filter screen part (12) and a cylinderical mounting part (13). The filter screen includes slightish eyelets, which are slightish, for controlling the grain of the season, but also are largish, causing the liquid to flow over the straw without any block. The liquid beverage flowing over the straw can dissolve the pill by degree, thereby releasing the active ingredient into the beverage when consuming.