Like most things, maintaining your external Aluminium plantation shutters is important too...
A quick dusting every now and then to remove built up dirt and dust works a treat. For those smudges or marks that don't come away with a duster, cleaning your shutters using a nonabrasive cloth or sponge with warm soapy water is all that's needed. A garden hose may also be used. Concentrate on the areas where there may be stainless steel hardware attached to the shutters.