---
title: "Flask for Baby Bottles — £784K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/baby-products/flask-for-baby-bottles"
last_updated: "2026-07-21T11:21:26.962Z"
locale: en
meta:
description: "Niche score 54/100 · £784K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · £784K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Flask for Baby Bottles — £784K/yr Amazon UK Niche (2026) - Flapen"
---
# **flask for baby bottles**
**Worth a look**
Shows low returns (0.3%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 72Growth 43Conversion 60Competition 7Returns 99Price range 93Avg price 95Brand share 0Review moat 40Quality gap 86
**Returns**
**Incredible****0.3%**
return rate — above 6% kills the launch gate
**Avg price**
**Incredible****£26.49**
avg listing price — sweet spot $15–$100
**Price range**
**Great****£14.33–£38.61**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****£784K**
£784K/yr · 575K searches
**Conversion**
**Good****5.1%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+14.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****2,466.25**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****92%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, flask for baby bottles is a £784K/yr Amazon United Kingdom market (575K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul. Verdict: Worth a look — 54/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **flask for baby bottles market data**
- **Units sold / yr**
- **30K–40K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **£795K–£1.1M**
- units × avg price
- **Launch success**
- **—**
- 1 of 1 new (360d)
- **Conversion rate**
- **5.1%**
- **Avg BSR**
- **#18**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **168 days**
## **Competition & brand share**
The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **—flat
**Sellers**
**171**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**92%**
Top 20: 100%
**Open market**
**0%**
- Nuby91% - Tommee Tippee6% - XAPROO2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +14.3% search growth over the last 90 days.
30K20KSpike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/uk/baby-products/flask-for-baby-bottles/trend)
## **Top flask for baby bottles search terms**
- **nuby rapid cool**312K/yr+8.8%6.7% conv. - **rapid cool**96K/yr+15.0%6.1% conv. - **breast milk cooler**32K/yr+74.4%0.8% conv. - **rapid cool baby bottle maker**34K/yr+2.0%6.1% conv. - **baby bottle cooler**21K/yr+19.0%1.5% conv. - **milk cooler**15K/yr+18.7%0.5% conv. - **breast milk cooler bag**16K/yr+15.2%0.0% conv. - **breastmilk cooler bag**12K/yr+36.1%0.0% conv. - **nubi rapid cool**11K/yr+7.0%7.3% conv. - **rapid cool nuby**6K/yr+6.5%4.9% conv. [**All search terms **](https://flapen.com/research/uk/baby-products/flask-for-baby-bottles/search-terms)
## **Top flask for baby bottles 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%£78K20%£157K30%£235K40%£314K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nuby RapidCool Portable Baby Bottle Maker Twin Pack - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes Milk Powder Dispenser Digital Lid & Flask (White)**Nuby**£28.84**4.4★4,309 rev](https://www.amazon.co.uk/dp/B0CGDJP6YK) [2**Nuby RapidCool Portable Baby Bottle Maker - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes Milk Powder Dispenser and Digital Lid | No Filter Needed (White)**Nuby**£18.68**4.4★4,309 rev](https://www.amazon.co.uk/dp/B09VH5PCCJ) [3**Nuby RapidCool Portable Baby Bottle Maker Kit - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes 2 RapidCools Milk Powder Dispensers Digital Lids & Flask (White)**Nuby**£38.61**4.4★4,309 rev](https://www.amazon.co.uk/dp/B09XMZG2M4) [4**Tommee Tippee PrepGo Formula Feed Maker Portable Cooling Flask with LED Digital Temperature Display Travel Friendly Bottle Preparation in 2 Minutes**Tommee Tippee**£18.07**3.5★1,018 rev](https://www.amazon.co.uk/dp/B0BX9YLYB1) [5**Nuby RapidSterilise Portable UV Steriliser Made for RapidCool - 70 Uses per Charge | Auto Shut-Off | Kills 99.9% of Bacteria (White)**Nuby**£14.33**3.9★228 rev](https://www.amazon.co.uk/dp/B0DPX52KH2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Xaproo 650ml Breast Milk Cooler Bottle Portable Milk Cooler for Breastmilk with 360Cooling for 24 Hours Millk Chiller with 2pcs Baby Bottles Breastmilk Storage Bags for Baby BPA-Free**XAPROO**£33.99**231 rev7mo ago](https://www.amazon.co.uk/dp/B0FJXZXCVL) [**Nuby RapidSterilise Portable UV Steriliser Made for RapidCool - 70 Uses per Charge | Auto Shut-Off | Kills 99.9% of Bacteria (White)**Nuby**£14.33**228 rev1y ago](https://www.amazon.co.uk/dp/B0DPX52KH2) [**Nuby Limited Edition RapidCool Portable Baby Bottle Maker Twin Pack - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes Milk Powder Dispenser Digital Lid & Flask (Blue)**Nuby**£31.85**4,309 rev2y ago](https://www.amazon.co.uk/dp/B0D41ZX29H) [**Nuby RapidCool Portable Baby Bottle Maker Twin Pack - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes Milk Powder Dispenser Digital Lid & Flask (White)**Nuby**£28.84**4,309 rev2y ago](https://www.amazon.co.uk/dp/B0CGDJP6YK) [**Tommee Tippee PrepGo Formula Feed Maker Portable Cooling Flask with LED Digital Temperature Display Travel Friendly Bottle Preparation in 2 Minutes**Tommee Tippee**£18.07**1,018 rev3y ago](https://www.amazon.co.uk/dp/B0BX9YLYB1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Xaproo 650ml Breast Milk Cooler Bottle Portable Milk Cooler for Breastmilk with 360Cooling for 24 Hours Millk Chiller with 2pcs Baby Bottles Breastmilk Storage Bags for Baby BPA-Free**XAPROO**£33.99**4.6★**▲ 135%**](https://www.amazon.co.uk/dp/B0FJXZXCVL) [**Nuby Limited Edition RapidCool Portable Baby Bottle Maker Twin Pack - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes Milk Powder Dispenser Digital Lid & Flask (Blue)**Nuby**£31.85**4.4★**▲ 95%**](https://www.amazon.co.uk/dp/B0D41ZX29H) [**Nuby RapidSterilise Portable UV Steriliser Made for RapidCool - 70 Uses per Charge | Auto Shut-Off | Kills 99.9% of Bacteria (White)**Nuby**£14.33**3.9★**▲ 21%**](https://www.amazon.co.uk/dp/B0DPX52KH2) [**Nuby RapidCool Portable Baby Bottle Maker Twin Pack - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes Milk Powder Dispenser Digital Lid & Flask (White)**Nuby**£28.84**4.4★**▲ 13%**](https://www.amazon.co.uk/dp/B0CGDJP6YK) [**Nuby RapidCool Portable Baby Bottle Maker - Formula Feed in 2 Minutes | Ideal for Travel Bottles and Night Feeds | Includes Milk Powder Dispenser and Digital Lid | No Filter Needed (White)**Nuby**£18.68**4.4★**— 5%**](https://www.amazon.co.uk/dp/B09VH5PCCJ)
**~~View all trending →~~**
## **What buyers say about flask for baby bottles**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**26%
*“Super handy”*
**Quality-Overall**15%
*“Worth the money these bottles are very good quality”*
**Value For Money**7%
*“Great value for money”*
**Temperature Retention**7%
*“This is the perfect temperature”*
**Ease Of Feeding**7%
*“This a game changer for feeding”*
**Portability**5%
*“The compact design is perfect for travel”*
**Temperature Control**4%
*“It cools my babys 180ml bottle in around 3 minutes”*
**Advertised Vs Actual Product**3%
*“Exactly what you see in the picture”*
**Size-Overall**2%
*“Size good”*
**Weight Light**2%
*“Lightweight, easy to understand”*
### **What buyers complain about **
**Durability**23%
*“Broken”*
**Functionality-Overall**19%
*“Stopped Working”*
**Temperature Control**6%
*“The temperature display is not working we have tried the fix”*
**Charging**6%
*“not charging or turning on”*
**Defective Material/Parts**4%
*“flashes red meaning defective / broken”*
**Leak-Proof**4%
*“the bottle leaks”*
**Quality-Overall**4%
*“Poor quality”*
**Battery Life**3%
*“Faulty battery, only had it for 6 weeks”*
**Value For Money**3%
*“expensive and useless”*
**Size-Overall**3%
*“Bigger than expected”*
### **Top return reasons **
**Charging**29%
**Functionality-Overall**24%
**Defective Material/Parts**13%
**Size-Overall**11%
**Durability**10%
**Weight Heavy**3%
**Value For Money**2%
**Compatibility-Overall**2%
**Advertised Vs Actual Product**1%
**Product Condition**1%
## **Common questions**
- **Is flask for baby bottles profitable to sell on Amazon United Kingdom?**
- The niche generates £784K/yr across 8 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.3%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the flask for baby bottles niche?**
- 3 brands and 171 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in flask for baby bottles?**
- Top complaints mined from reviews: Durability, Functionality-Overall, Temperature Control. The return rate is 0.3%.
- **When does demand for flask for baby bottles peak?**
- Demand peaks in Jul; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the flask for baby bottles niche?**
- Listings span £14.33–£38.61; the average listing price is £26.49 (sweet spot $15–$100). The average incumbent carries 2,466 reviews — the moat a new listing must climb.
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