Donor human milk (DHM) is key to helping infants in neonatal intensive care units grow, fight infection, and thrive. Existing methods of DHM preparation struggle to create products of high nutritional value while remaining affordable for widespread use. LacNation brings a new pasteurization technique to the table that more selectively eliminates pathogens while sparing important nutrients for growth and infection prevention. Moreover, this system has the potential to reduce costs of safe DHM production and allow hospitals to expand coverage to more infants thereby.