To clean Portuguese limestone, start by sweeping or vacuuming the surface to remove any loose dirt or debris. Next, mix a mild detergent with warm water in a bucket and use a soft-bristled brush to gently scrub the limestone. Rinse the surface thoroughly with clean water and dry with a clean cloth. Avoid using abrasive cleaners or brushes that could scratch or damage the surface. For stubborn stains or build-up, consider hiring a professional stone cleaning service.
