Despite very strict measures controlling pathogens during manufacture powdered infant formula is not a sterile product and low levels of contamination by Cronobacter (and other pathogens) may occur.


There is also nothing intrinsic in powdered infant formula that would prevent bacterial growth if reconstituted formula is not prepared or stored correctly. Therefore, it is important that infant formula is prepared in a manner that controls pathogen growth and minimises risk of illness.


Health authorities commissioned and funded this review on the microbiological safety of reconstituting powdered infant formula. This technical report has been accepted as advice to Te Whatu Ora and will be used to inform policy development.