Donor Human Milk Processing



Each pasteurization team member thoroughly scrubs his or her hands with antimicrobial soap before putting on gloves; gloves are always used when handling the human milk as part of the pasteurization process.



Human milk from a donor mom is carefully transferred from its original storage container to glass flasks.

Mixing and Pooling

Each Pool (which usually includes human milk from 3 to 5 donor mothers) is thoroughly mixed to ensure an even distribution of human milk components.

Filling Bottles

Four or eight ounce bottles are filled with human milk prior to pasteurization.

Pasteurizing using the Holder Method

The human milk is gently heated in using the Holder Method of pasteurization. Pasteurization eliminates bacteria while retaining the majority of human milk's beneficial components.


Lab Testing

Human milk samples are taken during the pasteurization process and cultured to check for bacterial growth. Any contaminated human milk is discarded.

Pasteurized Donor Human Milk

The Pasteurized Donor Human milk (PDHM) is now ready for freezing and storage. It can be dispensed after samples are cultured and show no bacteria growth.  PDHM is shipped frozen overnight to hospitals and individual recipients at home.