You are not required to wash the dishes or glassware, but please wipe off any food with a wet cloth to avoid being charged a cleaning fee when you return the items. Your glasses should be emptied of any beverages or garnishes. Bonus Tip: our racks and crates come wrapped in plastic, open the plastic from the top and leave the plastic around the bottom and sides to help keep the drippings from getting on your floor or inside your vehicle if transporting.