Ilene, I think everyone should consider what the composition of BM is and then answer your question. There are sugars and fat in this lovely liquid. I think the question should be degree of staining. Formula stains are darker and harder to clean, but breast milk will also stain. Warmly, Ann Perry RN IBCLC Boston, MA *********************************************** 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