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How to clean kitchen cabinet knobs
Remove the knobs from the cabinets with a screwdriver.
Many cleaning detergents and hard scrubbing can damage the wood of the cabinets. The backs of the knobs can also be an area where grime builds up; removing the knobs allows you to clean all of these areas.
Hold the knob tightly in one hand while turning the screwdriver counterclockwise in the screw on the back of the door. Remove the screws from the backs of the doors and set them aside for later.