Verfahren zur Herstellung permanent geschlossener, mit schwierig handhabbaren Massen gefüllter Behälter

The method involves introducing at least part of the filling mass into the container after the base is inserted and before the cover is added. The mass is added to the container via a tubular channel which has an outer diameter similar to the distance between both parallel side walls. The channel has a length sufficient to reach almost to the base of the container.