Method of operating a beverage bottling or container filling arrangement with a filling volume correcting apparatus

A method of controlling a container filling machine, which said filling machine comprises a plurality of filling elements, each comprising a flow measuring device, said method comprising the steps of:

• opening a plurality of filling elements and thereby dispensing a predetermined volume of filling material from each filling element into its corresponding container, and then closing each filling element upon its flow measuring device detecting that said predetermined volume of filling material is dispensed, while measuring the time that each filling element is open to dispense said predetermined volume of filling material;
• calculating a time based on said measured times that each filling element was open to dispense said predetermined volume of filling material;
• and
• opening another filling element for essentially said calculated time and thereby dispensing essentially said predetermined volume of filling material into another container, only upon malfunction or failure of said flow measuring device of said another filling element.