A novel procedure conceived by engineers of the School of Engineering of the Canton of the Valais makes it possible to do the stirring via the front hole, without the need to open the cask. In four to-and-fro movements, taking no more than twenty seconds, the system puts all the lees back into suspension. Once the cask is empty the stirring device can be withdrawn and used again. Stirring can be effected nonetheless using your existing method and equipment (stick, rod, chain…) and does not require any special handling since the top bung is accessible from the front of the cask.