Melitta Coffee Machine Repairs Spb six. Check the coffee stage: Ensure that the coffee stage is adequate. In the event the coffee amount is too very low, the drinking water may well not go through the coffee adequately, causing a weak or bitter brew. one. Coffee Maker Not Performing: https://melittacoffeemachinemanua.theobloggers.com/42229449/melitta-coffee-machine-spb-top-guidelines-of-melitta-coffee-machine-descaler