Lansinoh
Breastmilk Storage Bags (50 Pack)
7.7/10 overall£9.99
Pre-sterilised, self-standing freezer bags that each hold up to 180ml of expressed milk and write straight onto the label strip.
The verdict
Pre-sterilised, self-standing freezer bags holding up to 180ml each, with a double zip seal and built-in label strip — a low-risk, widely stocked choice for anyone building a milk freezer stash. Cost per bag adds up for frequent expressers compared with reusable storage options.
These are flat-pack bags that open into a self-standing pouch, with a double zip seal and a built-in label area for the date and volume — the basic feature set anyone freezing a stash of expressed milk needs. Each bag holds up to 180ml (6floz), which comfortably fits a full feed for most newborns without excess dead space in the freezer.
Against Haakaa's own storage bags or a similar own-brand alternative, the practical differences are the seal mechanism and shelf presence: Lansinoh's double zip is easy to feel closed one-handed, and because they're a market leader they're stocked in most UK supermarkets and pharmacies rather than needing an online order when you run low. Some cheaper alternatives use a single seal that's more prone to slow leaks in a chest freezer stood upright.
Best for anyone building a freezer stash for pumping, returning to work, or leaving milk for a partner to give — it's a low-drama, low-risk purchase since almost every parent expressing milk needs some kind of storage bag. The only real limitation is cost per bag versus reusable storage options like breastmilk storage bottles or trays, which work out cheaper if you're expressing regularly over many months rather than occasionally.
Is the Breastmilk Storage Bags (50 Pack) worth it?
- Double seal reduces leak risk in the freezer
- Self-standing design saves freezer space
- Widely stocked in UK supermarkets and pharmacies
What are the downsides of the Breastmilk Storage Bags (50 Pack)?
- Ongoing cost adds up for frequent expressers
- Single-use, more plastic waste than reusable containers
- 180ml capacity means multiple bags for a big freezer stash
Specs
- pack_size
- 50 bags
- seal_type
- Double zip seal
- freezer_safe
- Yes, self-standing
- pre_sterilised
- Yes
- capacity_per_bag
- Up to 180ml (6floz)
How we scored it
Effectiveness & Comfort
How well the product does its core job (protecting, catching, storing or covering) and how comfortable it is against skin or under clothing during real use.
Reliable double seal and freezer-friendly shape.
Value for Money
Price relative to how much product you get, how long it lasts, and whether cheaper alternatives do the job just as well.
Fine for occasional expressing, adds up for daily pumpers versus reusable bottles.
Ease of Use
How simple the product is to apply, wear, wash, fill or fit one-handed with a baby in the other arm.
Weighted by importance for this category — see our editorial policy for how we test.
How this review was done
We haven't used the Breastmilk Storage Bags (50 Pack) ourselves yet. This review is built from Lansinoh's published specifications and product information, and scored the same way as everything else on the site. We'll update it, and the badge above, once we've tested it hands-on.
How it compares
|  |  |  | |
|---|---|---|---|---|
| Price | £9.99 | £30.50 | £15.00 | £8.25 |
| Overall score | 7.7/10 | 6.7/10 | 7.1/10 | 7.4/10 |
Frequently asked questions
What makes these bags good for freezer storage?+
They open into a self-standing pouch with a double zip seal that's easy to feel closed one-handed, reducing leak risk in the freezer compared with single-seal alternatives, and each bag holds up to 180ml — enough for a full newborn feed.
Are they easy to find in the UK?+
Yes — as a market leader, they're stocked in most UK supermarkets and pharmacies rather than needing an online order when you run low.
Are they good value for regular pumping?+
They're a low-drama option for most parents, but the ongoing cost per bag adds up for frequent expressers — reusable storage bottles or trays work out cheaper if you're expressing regularly over many months.
Guides that mention this
Reviewed by
Sepehr
Software engineer, soon-to-be dad, uncle to four — the tech-obsessed half of the two of us testing this stuff. Currently building this site with my wife, ahead of our own baby arriving.