Abstract: A device and to the use thereof for mixing material to be mixed. A method for providing material to be mixed has the following steps: ? provision of a container with a single container opening and an inner chamber which contains an initial filling, ? surrounding the container with a jacket, ? introduction of a mixer such that the mixer protrudes into the inner chamber of the container, wherein the mixer is connected to a drive unit or the mixer can be connected to a drive unit in a subsequent step, ? rotary driving of the mixer using the drive unit in order to provide the material to be mixed by mixing the initial filling, ? removal of the mixer from the inner chamber of the container, ? separation of container and jacket in order to provide the container with all of the material to be mixed located inside, for consumption.