---
title: "Sterilising Bags — £89K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/baby-products/sterilising-bags"
last_updated: "2026-08-11T10:37:38.791Z"
locale: en
meta:
description: "Niche score 45/100 · £89K/yr market · 82K searches/yr · £8.22 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · £89K/yr market · 82K searches/yr · £8.22 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sterilising Bags — £89K/yr Amazon UK Niche (2026) - Flapen"
---
# **sterilising bags**
**Skip it**
Prices mostly outside the sweet spot ($5.20–$13.59) — this niche doesn't clear our bar today.
Market size 22Growth 20Conversion 96Competition 21Returns 97Price range 0Avg price 23Brand share 39Review moat 61Quality gap 77
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.1%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,043.75**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Bad****£8.22**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****£89K**
£89K/yr · 82K searches
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-9.6%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£5.20–£13.59**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, sterilising bags is a £89K/yr Amazon United Kingdom market (82K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 45/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sterilising bags market data**
- **Units sold / yr**
- **10K–13K**
- avg 750–1,000/product
- **Revenue / yr**
- **£82K–£103K**
- units × avg price
- **Conversion rate**
- **13.1%**
- **Avg BSR**
- **#39**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**11 **▲rising
**Sellers**
**35**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**13%**
- Medela28% - Bimirth22% - Max Strength Pro16% - ARDO9% - haakaa7% - Vital Baby5% - Open — no brand owns it (5 brands, 13%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -9.6% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/baby-products/sterilising-bags/trend)
## **Top sterilising bags search terms**
- **sterilising bags**23K/yr-15.0%10.1% conv. - **microwave steriliser bag**21K/yr+2.9%12.6% conv. - **sterilising bags microwave**12K/yr+9.2%13.5% conv. - **steriliser bags**9K/yr-8.8%10.1% conv. - **steriliser bags for baby bottles**5K/yr+9.7%11.3% conv. - **microwave steriliser bags**3K/yr-8.9%10.1% conv. - **medela sterilising bags microwave**4K/yr-11.8%25.4% conv. - **medela microwave steriliser bags**2K/yr-3.2%25.8% conv. - **medela sterilising bags**2K/yr-82.1%19.9% conv. [**All search terms **](https://flapen.com/research/uk/baby-products/sterilising-bags/search-terms)
## **Top sterilising bags 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%£9K20%£18K30%£27K40%£36K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Medela Quick Clean MicroSteam and Sterllising Microwave Bags for Bottles Breast Pump & Parts | Eliminates 99.9 of Common Bacteria Germs 5 Count**Medela**£9.85**4.7★2,428 rev](https://www.amazon.co.uk/dp/B001KVK4OA) [2**Microwave Steriliser Bags Premium 10pc Pack by Max Strength Large & Durable Steam Bags for Baby Bottles Soothers Teethers & Training Cups 20 Uses Per Bag Marking System Chemical Free**Max Strength Pro**£8.12**4.5★942 rev](https://www.amazon.co.uk/dp/B072LB5MYT) [3**Bimirth Microwave Steriliser Bags Pack of 16 Reusable Only 3 Minutes Cleaning Baby Bottles Pacifier Teethers & Training Cup Breast Pump Parts or Accessories 20 Uses Per Bag Chemical Free**Bimirth**£7.89**4.3★119 rev](https://www.amazon.co.uk/dp/B0D4LBP1N6) [4**ARDO Microwave Bottle Steriliser Bag. Fast Easy Cleaning of Breast Pumps**ARDO**£8.39**4.7★274 rev](https://www.amazon.co.uk/dp/B00IOO2MK0) [5**Bimirth Microwave Steriliser Bags Steam Steriliser Bags Pack of 16 Reusable Cleaning Baby Bottles Pacifier Teethers & Training Cups 20 Uses Per Bag Only 3 Minutes Marking System Chemical Free**Bimirth**£8.09**4.4★510 rev](https://www.amazon.co.uk/dp/B08QJDQP2Q)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Microwave Steriliser Bags Large 10pcs Chemical-Free Steam Bags for Baby Bottles Teethers & Accessories 20 Uses Each Marking System Included**ZOPPER**£6.11**13 rev8mo ago](https://www.amazon.co.uk/dp/B0FY74Z115) [**Bimirth Microwave Steriliser Bags Pack of 16 Reusable Only 3 Minutes Cleaning Baby Bottles Pacifier Teethers & Training Cup Breast Pump Parts or Accessories 20 Uses Per Bag Chemical Free**Bimirth**£7.89**119 rev2y ago](https://www.amazon.co.uk/dp/B0D4LBP1N6) [**haakaa Silicone Microwave Steriliser Bag for Baby Bottles Grey (1PC)**haakaa**£13.59**59 rev2y ago](https://www.amazon.co.uk/dp/B0CXSCS2HS) [**ECOOPTS 12 Count Microwave Steam Sterilizer Bags Reusable Micro-Steam Bags for Baby Bottles and Breast Pump Sterilizer Parts Microwave Steam Bags**ECOOPTS**£6.70**92 rev4y ago](https://www.amazon.co.uk/dp/B09LYJ1T68) [**Bimirth Microwave Steriliser Bags Steam Steriliser Bags Pack of 16 Reusable Cleaning Baby Bottles Pacifier Teethers & Training Cups 20 Uses Per Bag Only 3 Minutes Marking System Chemical Free**Bimirth**£8.09**510 rev5y ago](https://www.amazon.co.uk/dp/B08QJDQP2Q)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Microwave Steriliser Bags Large 10pcs Chemical-Free Steam Bags for Baby Bottles Teethers & Accessories 20 Uses Each Marking System Included**ZOPPER**£6.11**3.5★**▲ 104%**](https://www.amazon.co.uk/dp/B0FY74Z115) [**Munchkin 6 Pack Cool Touch Baby Microwave Steriliser Bags**Munchkin**£7.11**4.8★**▲ 12%**](https://www.amazon.co.uk/dp/B019YJS09K) [**Medela Quick Clean MicroSteam and Sterllising Microwave Bags for Bottles Breast Pump & Parts | Eliminates 99.9 of Common Bacteria Germs 5 Count**Medela**£9.85**4.7★**▲ 10%**](https://www.amazon.co.uk/dp/B001KVK4OA) [**haakaa Silicone Microwave Steriliser Bag for Baby Bottles Grey (1PC)**haakaa**£13.59**3.7★**— 7%**](https://www.amazon.co.uk/dp/B0CXSCS2HS) [**Microwave Steriliser Bags Premium 10pc Pack by Max Strength Large & Durable Steam Bags for Baby Bottles Soothers Teethers & Training Cups 20 Uses Per Bag Marking System Chemical Free**Max Strength Pro**£8.12**4.5★**— 4%**](https://www.amazon.co.uk/dp/B072LB5MYT)
**~~View all trending →~~**
## **What buyers say about sterilising bags**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**39%
*“Theyre very simple to use and I like that theres a clear way to keep track of how many times each bag has been used, which is a thoughtful and practical feature”*
**Value For Money**11%
*“Great value for busy parents”*
**Quality-Overall**10%
*“Great product”*
**Portability**7%
*“Very useful for travelling”*
**Size-Overall**6%
*“Ideal size”*
**Storage Capacity**4%
*“Easy to store”*
**Leak-Proof**2%
*“Plus, I really like the fact that you can pour the water away in a hole on the side and not end up accidentally spilling water everywhere”*
**Durability**2%
*“They also last a very long time as long as you don't overload them - if they are too full the zip lock can pull off from the plastic in the microwave even on the 1st use”*
**Compactness**1%
*“Compact and easy to use”*
**Add-Ons/Attachments**1%
*“I can easily fit 2 bottle in one bag with all the attachments”*
### **What buyers complain about **
**Quality-Overall**20%
*“Not as good as Munchkin brand”*
**Size-Overall**20%
*“Small”*
**Leak-Proof**14%
*“Leaks”*
**Durability**10%
*“Seal breaks after only few uses”*
**Functionality-Overall**5%
*“Opens during sterilisation”*
**Instructions/User Manual/Troubleshooting**5%
*“Instructions are also conflicting/vague”*
**Ease Of Use**4%
*“the steam hole was in an awkward place”*
**Strength**2%
*“The item does what its supposed to do however I do find it is quite flimsy”*
**Zipper Quality**2%
*“Can't even open the bqg mouth fully answer zipper comes out from the broken line”*
**Value For Money**2%
*“Don't waste your money”*
### **Top return reasons **
**Size-Overall**79%
**Durability**3%
**Leak-Proof**3%
**Functionality-Overall**2%
**Advertised Vs Actual Product**2%
**Locking Mechanism**1%
**Smell**1%
**Ease Of Use**1%
**Unsustainable Design**1%
**Breastfeeding Friendly**1%
## **Common questions**
- **Is sterilising bags profitable to sell on Amazon United Kingdom?**
- The niche generates £89K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -9.6%. Flapen's verdict: Skip it (45/100).
- **How competitive is the sterilising bags niche?**
- 11 brands and 35 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in sterilising bags?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Leak-Proof. The return rate is 0.5%.
- **When does demand for sterilising bags peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the sterilising bags niche?**
- Listings span £5.20–£13.59; the average listing price is £8.22 (sweet spot $15–$100). The average incumbent carries 1,044 reviews — the moat a new listing must climb.
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