For daily cleaning wipe the furniture with a clean cloth well wrung out in warm water - if necessary added a few drops of washing-up liquid per litre of water - followed by wiping with a clean, dry cloth.
If the surface needs a more thorough cleaning you can use a few drops of washing-up liquid directly on the spot. Wipe it afterwards with a clean, moist cloth and finally a clean, dry cloth. Or if necessary use a cleaningdetergent with the specific purpose of the type of stain.
Do not use detergent containing bleach or acid, which can damage the surface in time.