The sterilization of liquids plays a large role in pharmaceutical and biotechnological production. This is just as important in research and development and in the production of sterile goods as it is in handling parenteral solutions in hospital pharmacies. The hot water cascade system developed by MMM Münchener Medizin Mechanik GmbH enables liquids in closed receptacles made of glass or other temperature resistant materials (such as ampoules) to be sterilized quickly, reliably and gently. The advantage of the hot water cascade system lies in its very short cycle times, which are achieved through a high circulation rate and cascade density in combination with short heating up and cooling down times.