Dishwashing machine and method for the operation thereof

摘要

A dishwashing machine is designed to perform the following process steps: Step 1: a pretreatment cycle spraying the washing goods with an alkaline, highly concentrated cleaning solution, the pH value of which is at least 1 greater than the pH value of the washing liquid of a main washing cycle; Step 2 after Step 1: a soak cycle for a soak period, during which the cleaning solution acts on the washing goods and the washing goods are additionally thermally pretreated with steam, whereby the thermal pretreatment of the washing goods is performed during at least one part of the soak period, preferably during the entire soak period; Step 3 after Step 2: a main washing cycle, comprising spraying of the washing goods with washing liquid comprising water and cleaner; Step 4 after Step 3: a clear rinse cycle, during which the washing goods are sprayed with clear rinse liquid.

主权项

1. A method for the operation of a box-type dishwasher having a treatment chamber for washing washware,
characterized by the following steps: step 1: carrying out a pretreatment cycle comprising spraying the washware with an alkaline detergent solution whose pH is at least 1 higher than a pH of a washing liquid of a main washing cycle; following step 1, step 2: carrying out an action cycle over an action time period during which the detergent solution acts on the washware and the washware is additionally thermally pretreated with steam, with the thermal pretreatment of the washware with steam being carried out over at least a portion of the action time period; following step 2, step 3: carrying out a main washing cycle comprising spraying the washware with washing liquid which contains water and detergent; and following step 3, step 4: carrying out a final rinse cycle during which the washware is sprayed with final rinse liquid; wherein thermal treatment with steam also takes place during at least a portion of step 3 such that steam is introduced into the treatment chamber during the spraying of washware with wash liquid during at least the portion of step 3.