A disposable container is provided for mixing media. The container has at least one closable opening for introducing and/or removing media and has sensor mounts at spaced apart locations on the wall of the container. Each sensor mount has a front surface facing into the container and a rear surface sealed against the wall of the container. Sensors are embedded in the respective sensor mounts at positions adjacent the front surfaces. The sensors measure at least one specified parameter of the media at spaced apart locations in the container. The seals between the rear surfaces of the sensor mounts and the wall of the container ensure sterility for the media in the container.