Elisa,
Recommendations would vary depending on the health of the baby. For ill or
preterm infants, I recommend boiling, or following the advice of the NICU, if
any, for handling human milk. For full term, healthy babies, I recommend just
cleaning with hot soapy water. I always remind moms to wash their hands
before pumping, or handling their pump.
Catherine Watson Genna, IBCLC