Tommee Tippee bottle sterilizers are designed to be fast, fuss-free and easy to use, making it almost effortless to keep bottles, nipples and feeding accessories safe and free from harmful germs. A baby's developing immune system needs to be protected, and the kit will help do just that. The chemical-free sterilizing system is designed to kill 99.9 percent of germs on bottles. Parents love the worry-free system that sterilizes without the risk of detergent chemicals and dishwasher residue. Just push the button, and 8 minutes later you are good to go. It warms up, sterilizes and cools down fast to ensure the bottle is ready whenever you are. The electric steam sterilizer holds a day's worth of bottles, up to six, and keeps them sterile all day.