Here are several tips to help you clean your outdoor cafe or restaurant furniture. Don’t forget to wipe down the tables and chairs. Remember that the chairs get more wear and tear than any other part of the coffee shop's furniture. When dealing with stains, use a damp cloth dipped in dish soap to scrub away grime. Rinse it out before proceeding with anything else. You can also steam clean your surfaces using an upright or hand steamer or purchase a cleaning machine for this task.