The Philips Avent 3-in-1 Electric Steam Sterilizer SCF284/05 uses natural steam to kill 99.9% of germs and bacteria in just 6 minutes. Before sterilizing, wash items in warm, soapy water or the dishwasher. When they're clean, place them in the sterilizer. Fill the sterilizer basin with 100ml of water. Plug the sterilizer in to any standard electrical outlet and switch on. The sterilizing cycle will run for 6 minutes and then the sterilizer will automatically shut off for energy savings and safety. The 3-in-1 Electric Steam Sterilizer has an adjustable modular design. This gives you the option of using a small configuration for things like pacifiers, a medium configuration for breast pumps, toddler plates and utensils, or a large configuration for up to 6 Philips Avent bottles of any size. If the lid is unopened, contents will remain sterile and ready for their next use for up to 24 hours. (Located in Merced CA)