A culture container includes a tube having a first and a second opening respectively provided at two opposite ends thereof, and a cover installable on and removable from the first opening of the tube, the cover including a receptacle for holding a substance consumable by an organism of interest, the receptacle being enclosed inside the tube when the cover is installed on the first opening of the tube. Moreover, a system and a method of transferring a cultured organism of interest include switching the covers between two culture containers.
