---
title: "Breast Milk Storage Bag — £583K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/baby-products/breast-milk-storage-bag"
last_updated: "2026-08-10T10:22:54.939Z"
locale: en
meta:
description: "Niche score 42/100 · £583K/yr market · 536K searches/yr · £7.76 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · £583K/yr market · 536K searches/yr · £7.76 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Breast Milk Storage Bag — £583K/yr Amazon UK Niche (2026) - Flapen"
---
# **breast milk storage bag**
**Skip it**
Prices mostly outside the sweet spot ($3.68–$13.97) — this niche doesn't clear our bar today.
Market size 63Growth 22Conversion 96Competition 17Returns 98Price range 0Avg price 22Brand share 24Review moat 33Quality gap 17
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.0%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****£583K**
£583K/yr · 536K searches
**Review moat**
**Okay****3,182.18**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****90%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-5.1%**
90-day search growth — must beat 0% to launch
**Avg price**
**Bad****£7.76**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****80%**
top-5 click share — a locked-up shelf
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Price range**
**Bad****£3.68–£13.97**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, breast milk storage bag is a £583K/yr Amazon United Kingdom market (536K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 42/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **breast milk storage bag market data**
- **Units sold / yr**
- **60K–80K**
- avg 5,000–6,000/product
- **Revenue / yr**
- **£466K–£621K**
- units × avg price
- **Conversion rate**
- **14.0%**
- **Avg BSR**
- **#6**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **5.5%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▼falling
**Sellers**
**24**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**80%**
Top 20: 100%
**Open market**
**6%**
- Lansinoh26% - Medela24% - COZYPEPE18% - Nuliie15% - Oderra8% - Tommee Tippee3% - Open — no brand owns it (2 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.1% search growth over the last 90 days.
13K8KSpike '24Prime Day '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/uk/baby-products/breast-milk-storage-bag/trend)
## **Top breast milk storage bag search terms**
- **breast milk storage bag**306K/yr-4.1%13.1% conv. - **milk storage bags**73K/yr-3.0%10.7% conv. - **breastmilk storage bag**42K/yr-21.4%13.1% conv. - **breast milk bags**30K/yr+12.3%11.6% conv. - **milk bags breastfeeding**21K/yr+1.4%14.3% conv. - **breast milk storage bags**13K/yr+8.0%9.1% conv. - **milk bags**14K/yr-0.5%12.4% conv. - **breastmilk storage bags**7K/yr-2.9%10.0% conv. - **breastmilk bags**6K/yr+8.1%10.6% conv. - **breast milk freezer bags**7K/yr-20.3%15.3% conv. [**All search terms **](https://flapen.com/research/uk/baby-products/breast-milk-storage-bag/search-terms)
## **Top breast milk storage bag products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%£58K20%£117K30%£175K40%£233K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Medela Easy Pour Disposable Breastmilk Storage Bags 210 ml Capacity Leakproof Design with Milk Protection Made Without BPA Pack of 50**Medela**£6.72**4.8★1,213 rev](https://www.amazon.co.uk/dp/B0D97THKQK) [2**Lansinoh Breast Milk Storage Bags - Pre-Sterilised Leakproof & BPA/BPS-Free - Fridge & Freezer Breastmilk Pouches - Pump into bag with Lansinoh Breast Pumps - Breastfeeding Essentials - 50 Pack**Lansinoh**£6.65**4.7★7,423 rev](https://www.amazon.co.uk/dp/B0037XQT7A) [3**Nuliie 120 Pcs Breast Milk Storage Bags 250ml BPA Free Milk Storage Bags with Pour Spout for Breastfeeding Self-Standing or Flat Pre-sterilised Bag Space Saving for Fridge or Freezer Use**Nuliie**£8.41**4.6★13,108 rev](https://www.amazon.co.uk/dp/B091T8WFCW) [4**100 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer**COZYPEPE**£7.63**4.7★1,366 rev](https://www.amazon.co.uk/dp/B0DWK7FHY7) [5**Oderra 250ml Breast Milk Storage Bags 50PCS- Pre-Sterilized Freezer-Safe Breastmilk Bags with Built-In Pour Spout Double Zip Seal Hospital Bag Maternity Essentials**Oderra**£5.62**4.7★647 rev](https://www.amazon.co.uk/dp/B0DZXDTZ6B)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Oderra 250ml Breast Milk Storage Bags 50PCS- Pre-Sterilized Freezer-Safe Breastmilk Bags with Built-In Pour Spout Double Zip Seal Hospital Bag Maternity Essentials**Oderra**£5.62**647 rev1y ago](https://www.amazon.co.uk/dp/B0DZXDTZ6B) [**100 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer**COZYPEPE**£7.63**1,366 rev1y ago](https://www.amazon.co.uk/dp/B0DWK7FHY7) [**200 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer**COZYPEPE**£13.97**1,381 rev1y ago](https://www.amazon.co.uk/dp/B0DWKCY6QD) [**Medela Easy Pour Disposable Breastmilk Storage Bags 210 ml Capacity Leakproof Design with Milk Protection Made Without BPA Pack of 50**Medela**£6.72**1,213 rev2y ago](https://www.amazon.co.uk/dp/B0D97THKQK) [**Medela Easy Pour Disposable Breastmilk Storage Bags 210 ml Capacity Leakproof Design with Milk Protection Made Without BPA Pack of 100**Medela**£10.25**1,698 rev2y ago](https://www.amazon.co.uk/dp/B0D97R57G3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Oderra 250ml Breast Milk Storage Bags 50PCS- Pre-Sterilized Freezer-Safe Breastmilk Bags with Built-In Pour Spout Double Zip Seal Hospital Bag Maternity Essentials**Oderra**£5.62**4.7★**▲ 37%**](https://www.amazon.co.uk/dp/B0DZXDTZ6B) [**Lansinoh Breast Milk Storage Bags - Pre-Sterilised Leakproof & BPA/BPS-Free - Fridge & Freezer Breastmilk Pouches - Pump into bag with Lansinoh Breast Pumps - Breastfeeding Essentials - 50 Pack**Lansinoh**£6.65**4.7★**▲ 12%**](https://www.amazon.co.uk/dp/B0037XQT7A) [**Lansinoh Breast Milk Storage Bags - Pre-Sterilised Leakproof & BPA/BPS-Free - Fridge & Freezer Breastmilk Pouches - Pump into bag with Lansinoh Breast Pumps - Breastfeeding Essentials - 25 Pack**Lansinoh**£3.68**4.7★**— 8%**](https://www.amazon.co.uk/dp/B0000BYAG5) [**200 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer**COZYPEPE**£13.97**4.7★**— 6%**](https://www.amazon.co.uk/dp/B0DWKCY6QD) [**100 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer**COZYPEPE**£7.63**4.7★**— 4%**](https://www.amazon.co.uk/dp/B0DWK7FHY7)
**~~View all trending →~~**
## **What buyers say about breast milk storage bag**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“higher quality than I expected”*
**Ease Of Use**18%
*“Easy to use”*
**Storage Capacity**16%
*“Good storage”*
**Leak-Proof**11%
*“Leak proof”*
**Value For Money**10%
*“Good for the price”*
**Durability**4%
*“Very durable material”*
**Advertised Vs Actual Product**3%
*“Will do the job”*
**Strength**2%
*“Sturdy material”*
**Size-Overall**2%
*“good size”*
**Breastfeeding Friendly**1%
*“Great for breastfeeding mums”*
### **What buyers complain about **
**Measurement/Reading Accuracy**23%
*“incorrect measure lines”*
**Leak-Proof**12%
*“Dont buy they leak”*
**Ease Of Use**12%
*“Dont open easily”*
**Temperature Control**4%
*“No temperature sensor”*
**Quality-Overall**4%
*“Ive had better quality ones before from other brands these feel flimsy”*
**Thickness**2%
*“the plastic feels much thicker”*
**Design-Overall**2%
*“Poor design causes milk to spill and waste”*
**Flatness**2%
*“as the bags are flat”*
**Natural Resource Wastage**1%
*“This really wasted so much of the milk”*
**Strength**1%
*“the nails were too flimsy for me”*
### **Top return reasons **
**Breastfeeding Friendly**35%
**Size-Overall**10%
**Quality-Overall**9%
**Functionality-Overall**5%
**Value For Money**5%
**Product Condition**4%
**Leak-Proof**4%
**Temperature Control**4%
**Moist/Dry**3%
**Compatibility-Overall**3%
## **Common questions**
- **Is breast milk storage bag profitable to sell on Amazon United Kingdom?**
- The niche generates £583K/yr across 11 tracked products. 90-day search growth is -5.1%. Flapen's verdict: Skip it (42/100).
- **How competitive is the breast milk storage bag niche?**
- 8 brands and 24 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in breast milk storage bag?**
- Top complaints mined from reviews: Measurement/Reading Accuracy, Leak-Proof, Ease Of Use. The return rate is 0.5%.
- **When does demand for breast milk storage bag peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the breast milk storage bag niche?**
- Listings span £3.68–£13.97; the average listing price is £7.76 (sweet spot $15–$100). The average incumbent carries 3,182 reviews — the moat a new listing must climb.
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