The milton cold water steriliser has been specifically designed for use with the milton method of cold water sterilisation as recommended by professionals its large 5 litre capacity allows 6 bottles of any brand to be sterilised and can also be used for sterilising breastfeeding equipment and baby accessories including teething rings plastic toys soothers and weaning items used with milton sterilising tablets or fluid the milton method kills all harmful viruses fungi spores and bacter