Filter and sort 2 products
Breast milk storage bags, disposable or reusable
If you're expressing, you need bags that seal well, stack in the freezer and pour without spilling. How often you pump mostly decides which of our two kinds suits you.
The disposable bags hold up to 180ml, stand up while you fill them and close with a double zip seal. Each has a temperature strip that changes colour as the milk warms, and they're pre-sterilised, so there's nothing to wash: use one, then throw it away.
The silicone bags hold up to 240ml and go in the dishwasher. The wide opening takes milk straight from the pump, and a capped spout pours it into a bottle. Both kinds lie flat in the freezer and stack neatly, and both come with a pen for writing on the date and amount.
Questions, answered.
How long can I keep expressed milk?
The NHS says expressed milk keeps at the back of the fridge for up to 8 days at 4°C or lower, or 3 days if your fridge runs warmer or you're not sure. It keeps for 2 weeks in the ice compartment of a fridge and up to 6 months in a freezer at -18°C or lower, so write the date on each bag as you fill it.
Should I choose disposable or reusable bags?
Reusable bags suit daily pumping, though you'll want more than five in rotation. Disposables suit occasional pumping and travel, with nothing to wash or sterilise.
How do I defrost and warm milk from a bag?
Slowly in the fridge is best, or stand the sealed bag in a jug of warm water, never boiling. Don't use the microwave, which heats milk unevenly and can leave hot spots. On the disposable bags, the strip turns blue when the milk is about right.
Can I refreeze milk once it has thawed?
No, the NHS says not to re-freeze milk once it's been defrosted. Use it straight away, and once your baby has drunk from a bottle, use what's left within an hour and throw the rest away.
How do I stop bags leaking in the freezer?
Don't fill past the top line, and squeeze the air out before you seal. Leave a little room at the top, because milk expands as it freezes.








