What are the best methods to clean bird droppings from natural rattan outdoor sofas?

Bird droppings can be a nuisance on natural rattan outdoor sofas, but cleaning them properly ensures longevity and aesthetics. Start by gently scraping off dried droppings with a soft brush or plastic scraper to avoid scratching the rattan. Mix a solution of mild soap (like dish soap) and warm water, then use a soft cloth or sponge to dab the affected area—avoid rubbing to prevent fiber damage. For tougher stains, a diluted vinegar solution (1:1 water and white vinegar) can help disinfect and break down residues. Rinse with clean water and let the sofa air-dry completely. Avoid harsh chemicals or pressure washers, as they can weaken rattan fibers. Regular maintenance, such as covering the sofa when not in use, minimizes future messes. For deep cleaning, consider professional rattan-safe cleaners.