The AVENT Express uses the hospital method to sterilise your baby feeding items in approximately 8 minutes. Just add 90ml of water and switch on. The intensive heat of the steam rapidly kills all the harmful bacteria that can cause tummy upsets in your precious newborn. And there's no on-going cost for sterilising solution, and no nasty after-taste or smell. The AVENT Express has been specially designed to hold 6 AVENT bottles. Transforms into dishwasher basket for small items.