The furniture-cleaning reference cautions against using a powerful pressure washer on wooden and rattan pieces. Aggressive spraying can damage wood fibers and affect the structure, even when online videos show an immediate visual improvement. Joints and delicate woven areas are particularly poor targets for a concentrated jet.

Pressure Washing Can Damage Wooden Garden Furniture

A gentler wash with an appropriate soap solution or suitable furniture cleaner usually offers a more controlled approach. Identify the material and check its care instructions first. Cleaning should leave the furniture in better condition rather than trade long-term durability for the speed of the result.

A rapid visible clean may come at the expense of the timber's surface and structure.