Cleaning breast pump parts: Building a Reliable Routine

Milk residue can support the growth of germs on pump parts. Cleaning after use is part of feeding, even when a kit looks clear or will be needed again soon. A routine that includes drying and storage is easier to follow than deciding what to do with wet equipment at each session.

Learn which parts need which care

Read the instructions for your exact pump. Separate the pieces that contact the breast or milk, such as the flange, connector, valve and collection bottle. Small membranes may need careful handling, and not every part can go in a dishwasher or steam system.

The motor unit should never be submerged. Tubing that stays free of milk generally does not need routine washing. Replace tubing contaminated with milk or mould as advised by CDC guidance, and check why it happened. Follow the maker’s instructions for condensation and other maintenance.

Wash after each use

Wash your hands before handling equipment. Rinse milk contact parts and wash them separately with dishwashing soap and water, using a dedicated clean basin rather than placing them directly in a sink. Rinse thoroughly. A dishwasher can be an option for compatible parts; contain small pieces so they are not lost.

Rinse and dry the basin and brush after use, and clean them regularly. For babies under two months, babies born prematurely or babies with weakened immunity, wash the basin and brush after each use.

Allow equipment to air dry completely in a protected place. Do not rub it dry with a used kitchen towel. Keep clean, dry parts covered or in a clean container until needed. Our milk storage guide covers handling the milk while the equipment is being cleaned.

Add the appropriate sanitizing step

Sanitizing provides extra germ reduction after washing. CDC recommends doing this at least daily, especially for babies under two months, babies born prematurely and babies with weakened immunity. Older healthy babies may not need daily sanitizing when parts are carefully cleaned after every use. NHS advice uses a stricter sterilizing routine, so follow the local plan and any hospital instructions for your baby.

Use a method compatible with the equipment, such as a suitable steam system or boiling when permitted. A dishwasher cycle with the specified hot wash and heated drying or sanitizing setting may already provide this step. Sanitizing does not replace removal of milk residue first.

Plan around difficult settings

If cleaning facilities are limited, bringing enough clean collection kits for separate sessions can help. Store used parts separately for cleaning afterwards. Our returning to work guide helps you plan the space and supplies.

Keeping used parts in a fridge does not clean them, and its safety as a replacement for washing between sessions has not been established. Wipes alone also do not replace the required wash. Inspect parts for damage and replace them according to the maker’s instructions; a deteriorating component can affect hygiene and pump performance.