down so that the same volume of the main body 515 of the container which is reduced is equivalent to the volume of the content which is removed the internal pressure and external pressure of the main body 515 of the container are gradually balanced and the container is ready to remove the content for the next time the method for balancing the internal and the external pressures of the container 515 further includes disposing a piston on the main body after the content in the main body of the container is gradually removed the piston is gradually moved inward into the main body of the container under the effect of the atmosphere reducing the volume of the main body of the container a handle can also be disposed on the piston on the main body of the container and the pressure is applied to the content in the main body of the container via the handle the design not only maintains the balance of the internal and external pressures of the container after the content is removed but also allows the content to enter the content removing part fig6 shows a container for removing content easily according to a fourth embodiment fig7 is an enlarged diagram of part c in fig6 the container includes a main body 612 of the container and is provided with an opening 613 on the top thereof the opening.