The invention relates to the creation of an accommodating container for accommodating a material that makes safe use and reliable operation possible. According to the invention the accommodating container comprises an access opening, through which an interior of the accommodating container is accessible, an acting device arranged in the interior for acting on the material, and a safety device arranged in the interior for preventing access to the interior and/or the acting device, wherein the safety device can be brought from a first safety position, in which access to the interior of the accommodating container is blocked, to a second safety position, in which access to the acting device is blocked.