Chicco 4-Bottle Digital Sterilizer is easy to use. It can hold 4 Chicco bottles with their accessories. The sterilization cycle lasts 12 minutes water heating 7 minutes 5 minutes sterilization. The display will indicate how many minutes are left for the cycle to end, which will be marked by a 5 beep sound. If the device is not turned off at the end, the cycle will be repeated every 5 hours while there is water in the reservoir to ensure that the products are always sterile.