A bottle drying rack will need to be cleaned at least weekly so that you have a tidy space to dry your baby’s clean bottles. You can wipe down a drying rack with a dry cloth after each use to ensure that all parts are dry and prevent build up from unevaporated moisture. You can also hand wash any of these drying racks in a sink with warm soapy water. Make sure that you are cleaning all parts of the drying rack. You will need to clean the posts, tray, and water reservoir of the drying rack weekly. If your rack had removable or adjustable parts make sure that you are cleaning the crevices. Some of these bottle drying racks are top rack dishwasher safe. Please read your manufacturer's directions before you place any of these racks in the dishwasher.