Porcelain tiles are extremely durable; however, there are a few things you should avoid when cleaning them. Never use harmful chemicals, bleach or acid-based cleansers, and avoid abrasive tools like steel wool or scrub brushes. You should also avoid oil-based cleaners for safety's sake. Cleaning porcelain tiles is easy- give them a good power washing at the beginning of the season to restore them to their freshly installed good looks.