Storing expressed breastmilk

Refrigerated or frozen milk can be stored in hard-sided plastic or glass containers with well-fitting tops, or breastmilk storage bags specifically designed for this purpose.
Disposable bottle liners are not recommended, as the plastic used may split or tear during freezing.
Different guidelines will apply for a premature or ill baby. If you have any concern about stored milk, discard it and do not feed it to your baby.

How to Warm Breastmilk
- Ideally, thaw in the fridge: milk thawed in this way can then be kept in the fridge unopened for up to 24 hours.
- If heating is desired, heat in a bowl of hot water, or under warm, running water.
- Gently swirl the milk before testing the temperature. Swirling will also redistribute the cream into the milk. (It is normal for stored milk to separate into a cream and milk layer.) Do not shake vigorously as this could damage some of the live components of human milk.
- Never heat or thaw in a microwave as this can destroy the beneficial properties. Heating in this way can also create 'hot spots' in the milk.
- Thawed milk should not be refrozen

My frozen milk smells 'soapy' or rancid - why is this ?
This sometimes happens if your breastmilk is high in lipase, the enzyme that breaks down fat in the milk. Depending upon the levels of lipase, you may also notice this smell after you have cooled your milk in the fridge. It is still safe for your baby, but if you are concerned, you can scald your milk to deactivate the lipase before storing. Heat the milk until small bubbles form around the edge of the pan (but not to boiling point) and then quickly cool and freeze it. However, once your milk has been frozen and acquired this smell, scalding will not help