---
title: "Kilner Jars 2l — £98K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/kilner-jars-2l"
last_updated: "2026-08-01T05:04:02.071Z"
locale: en
meta:
description: "Niche score 34/100 · £98K/yr market · 66K searches/yr · £9.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 34/100 · £98K/yr market · 66K searches/yr · £9.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Kilner Jars 2l — £98K/yr Amazon UK Niche (2026) - Flapen"
---
# **kilner jars 2l**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 25Growth 12Conversion 97Competition 10Returns 96Price range 37Avg price 30Brand share 0Review moat 36Quality gap 24
**Conversion**
**Incredible****15.4%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.9%**
return rate — above 5% kills the launch gate
**Price range**
**Okay****£2.88–£22.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****2,901**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****£9.65**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****£98K**
£98K/yr · 66K searches
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-26.7%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****88%**
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, kilner jars 2l is a £98K/yr Amazon United Kingdom market (66K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep–Oct–Nov. Verdict: Skip it — 34/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kilner jars 2l market data**
- **Units sold / yr**
- **10K–13K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **£97K–£121K**
- units × avg price
- **Conversion rate**
- **15.4%**
- **Avg BSR**
- **#58**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **13%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **189 days**
## **Competition & brand share**
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **—flat
**Sellers**
**37**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**88%**
Top 20: 100%
**Open market**
**0%**
- Kilner79% - Argon Tableware11% - Rayware10%
## **Demand & seasonality**
Weekly Amazon search volume, last 88 weeks — -26.7% search growth over the last 90 days.
3K2KPrime Day '25Spike '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Aug, Sep, Oct, Nov · busiest ÷ quietest = 4.5×
[**Open Trend **](https://flapen.com/research/uk/home-garden/kilner-jars-2l/trend)
## **Top kilner jars 2l search terms**
- **kilner jars 2l**26K/yr-36.7%12.8% conv. - **large kilner jar**7K/yr-18.5%11.5% conv. - **2l kilner jars**4K/yr-26.8%16.7% conv. - **2l glass jar**5K/yr-22.0%5.9% conv. - **2 litre glass jar**6K/yr-23.5%5.0% conv. - **2l jar**4K/yr-19.6%6.4% conv. - **large kilner jars**4K/yr-17.6%7.1% conv. - **2 litre kilner jar**6K/yr-3.1%17.0% conv. - **2l kilner jar**5K/yr-34.3%18.0% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/kilner-jars-2l/search-terms)
## **Top kilner jars 2l 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%15%£15K30%£29K45%£44K60%£59K1001K10K 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**Kilner Clip Top Jar 2 Litre (2000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta**Kilner**£5.00**4.7★5,686 rev](https://www.amazon.co.uk/dp/B003Y7MS6U) [2**Argon Tableware Glass Jar with Airtight Metal Clip Lid - 2000ml/70.3oz - 3 Pack - 4 Colour Seals - Extra Large Storage Container Round Preserving Jar for Pickling Chutney Jam Coffee Biscuit**Argon Tableware**£12.05**4.5★6,026 rev](https://www.amazon.co.uk/dp/B0117P539O) [3**Kilner Square Clip Top Jar 2L (2000ml) Airtight Glass Jar for Pickling Large Vegetables Preserving Whole Fruits and Storing Biscuits Cereals Pasta Dry Foods**Kilner**£4.44**4.7★3,310 rev](https://www.amazon.co.uk/dp/B001DYO4KY) [4**Kilner Square Clip Top Jar 3L (3000ml) Airtight Glass Jar for Preserving Whole Fruits Vegetables and Storing Cereals Pasta Nests Pet Biscuits**Kilner**£10.70**4.5★160 rev](https://www.amazon.co.uk/dp/B0CGJ6CNG1) [5**Kilner Clip Top Square Jar Ideal for Preserving Fruit/Vegetables 2 Litre Clear (Pack of 4)**Rayware**£22.21**4.5★114 rev](https://www.amazon.co.uk/dp/B08H5MKBKC)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kilner Square Clip Top Jar 3L (3000ml) Airtight Glass Jar for Preserving Whole Fruits Vegetables and Storing Cereals Pasta Nests Pet Biscuits**Kilner**£10.70**160 rev2y ago](https://www.amazon.co.uk/dp/B0CGJ6CNG1) [**Kilner Clip Top Square Jar Ideal for Preserving Fruit/Vegetables 2 Litre Clear (Pack of 4)**Rayware**£22.21**114 rev5y ago](https://www.amazon.co.uk/dp/B08H5MKBKC) [**Kilner Clip Top Square Jar Ideal for preserving Fruit/Vegetables 2 Litre Clear (Pack of 2)**Rayware**£13.03**179 rev5y ago](https://www.amazon.co.uk/dp/B08H5LH45S) [**Kilner Universal Jar Push-Top Lid 2 Litre Glass Food Container with Silicone Seal Kitchen Pantry Storage for Dry Food Biscuits Sweets and Treats**Kilner**£6.86**5,259 rev10y ago](https://www.amazon.co.uk/dp/B01BF6RZZ0) [**Argon Tableware Glass Jar with Airtight Metal Clip Lid - 2000ml/70.3oz - 3 Pack - 4 Colour Seals - Extra Large Storage Container Round Preserving Jar for Pickling Chutney Jam Coffee Biscuit**Argon Tableware**£12.05**6,026 rev11y ago](https://www.amazon.co.uk/dp/B0117P539O)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kilner Square Clip Top Jar 3L (3000ml) Airtight Glass Jar for Preserving Whole Fruits Vegetables and Storing Cereals Pasta Nests Pet Biscuits**Kilner**£10.70**4.5★**▲ 57%**](https://www.amazon.co.uk/dp/B0CGJ6CNG1) [**Argon Tableware Glass Jar with Airtight Metal Clip Lid - 2000ml/70.3oz - 3 Pack - 4 Colour Seals - Extra Large Storage Container Round Preserving Jar for Pickling Chutney Jam Coffee Biscuit**Argon Tableware**£12.05**4.5★**▲ 44%**](https://www.amazon.co.uk/dp/B0117P539O) [**Kilner Clip Top Jar 2 Litre (2000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta**Kilner**£5.00**4.7★**▲ 28%**](https://www.amazon.co.uk/dp/B003Y7MS6U) [**Kilner Universal Jar Push-Top Lid 2 Litre Glass Food Container with Silicone Seal Kitchen Pantry Storage for Dry Food Biscuits Sweets and Treats**Kilner**£6.86**4.6★**▲ 26%**](https://www.amazon.co.uk/dp/B01BF6RZZ0) [**Kilner Preserve Jar 1L (1000ml) Round Glass Screw Top Lid Preservation Storage Jar for Pickling Vegetables Whole Fruits Chunky Chutneys**Kilner**£2.88**4.6★**— 0%**](https://www.amazon.co.uk/dp/B007FT5C5W)
**~~View all trending →~~**
## **What buyers say about kilner jars 2l**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**33%
*“Good quality”*
**Storage Capacity**14%
*“great storage capacity”*
**Value For Money**13%
*“Great value”*
**Size-Overall**10%
*“they fit perfectly for me”*
**Ease Of Use**5%
*“easy to use”*
**Strength**5%
*“It's sturdy as well”*
**Leak-Proof**4%
*“Seals well”*
**Advertised Vs Actual Product**3%
*“Better than I expected”*
**Locking Mechanism**2%
*“Seals well”*
**Material Quality**1%
*“Much better than plastic containers”*
### **What buyers complain about **
**Quality-Overall**18%
*“Not good quality, cheap imatation”*
**Rusts/Corrodes**17%
*“the next day the rust comes back”*
**Size-Overall**16%
*“Not fit for purpose”*
**Design-Overall**8%
*“Complete design fail”*
**Ease Of Use**5%
*“Removing it is difficult”*
**Weight Heavy**3%
*“Again they are heavy”*
**Advertised Vs Actual Product**3%
*“Misleading”*
**Smell**3%
*“the smell is quite strong”*
**Defective Material/Parts**3%
*“Defective”*
**Leak-Proof**2%
*“not leak proof”*
### **Top return reasons **
**Size-Overall**63%
**Defective Material/Parts**16%
**Ease Of Use**3%
**Maintenance And Repair**3%
**Compatibility-Overall**2%
**Quality-Overall**2%
**Functionality-Overall**1%
**Shape/Style**1%
**Leak-Proof**1%
**Value For Money**1%
## **Common questions**
- **Is kilner jars 2l profitable to sell on Amazon United Kingdom?**
- The niche generates £98K/yr across 8 tracked products. 90-day search growth is -26.7%. Flapen's verdict: Skip it (34/100).
- **How competitive is the kilner jars 2l niche?**
- 3 brands and 37 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in kilner jars 2l?**
- Top complaints mined from reviews: Quality-Overall, Rusts/Corrodes, Size-Overall. The return rate is 0.9%.
- **When does demand for kilner jars 2l peak?**
- Demand peaks in Aug–Sep–Oct–Nov; the busiest month runs 4.5× the quietest.
- **What does it cost to enter the kilner jars 2l niche?**
- Listings span £2.88–£22.21; the average listing price is £9.65 (sweet spot $15–$100). The average incumbent carries 2,901 reviews — the moat a new listing must climb.
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