the vessel 2 comprises an upper liquid permeable section 25 such as a net or a grid which preferably is arranged at the outlet portion the section 25 may be arranged in the conduit 5 and is preferably detachably arranged alternatively the outlet portion may be arranged with a connection device in accordance with ep1196202 which connection device is being arranged at the vessel 2 the interior peripheral walls of the vessel 2 and the lower and upper liquid permeable sections 23 25 at least partly forms a treatment zone 26 for the articles to be treated and sterilized fig2 a shows the vessel which according to this embodiment is a mobile vessel 2 the vessel or the enclosure preferably have a volume between 50 1000 liter more preferably between 50 500 liter and most preferred 50 400 liter the vessel is supported by a trolley 32 which is partly depicted in fig2 a the vessel may be docked to a treatment station 31 and which station is shown in fig2 b the treatment station 31 is preferably adapted to perform multi treatments such as wash siliconize sterilize and dry the treatments may specifically be detergent wash rinsing optionally pre vacuum liquid filling siliconizing heating sterilization cooling emptying and drying fig3.