Someone posted to lactnet the results of their study on partly used bottles of ebm a few years ago. Her results showed no increase in bacterial growth after 24 hours in the refrigerator after baby drank from the bottle of previously frozen breast milk. I am not concerned about reusing a bottle of ebm ONCE for the next feeding. Some moms can interpret being able to reuse a bottle as never ever having to clean it. -- Catherine Watson Genna, IBCLC New York City mailto:[log in to unmask] *********************************************** The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(TM) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html