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kilner bottles

Worth a look

Shows low returns (0.4%), but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.

Market size 15Growth 66Conversion 82Competition 46Returns 98Price range 34Avg price 43Brand share 8Review moat 75Quality gap 48

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Conversion

Great8.9%

search→purchase rate — share of searches ending in a sale

Review moat

Great495.83

avg incumbent reviews — the moat a new listing must climb

Growth

Good+44.8%

90-day search growth — must beat 0% to launch

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay57%

top-5 click share — leaders hold, buyers still browse

Avg price

Okay£11.14

avg listing price — sweet spot $15–$100

Price range

Okay£5.44–£20.02

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Bad£60K

£60K/yr · 61K searches

Brand share

Bad97%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, kilner bottles is a £60K/yr Amazon United Kingdom market (61K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Dec. Verdict: Worth a look — 50/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

kilner bottles market data

Units sold / yr
5K–6K
avg 100–250/product
Revenue / yr
£56K–£67K
units × avg price
Conversion rate
8.9%
Avg BSR
#274
Page quality
0%
Prime
43%
Sponsored
26%
Out of stock
1.4%
Avg brand age
47 months
Avg seller age
183 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 falling

Sellers

49

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

57%

Top 20: 97%

Open market

1%

  • Kilner81%
  • Eidoct5%
  • Rayware5%
  • volila3%
  • Danmu Art3%
  • HEFTMAN2%
  • Open — no brand owns it (1 brand, 1%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +44.8% search growth over the last 90 days.
3K2KSpike '24Holiday '24Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 2.6×

Top kilner bottles search terms

  • kilner bottles38K/yr
  • kilner bottle9K/yr
  • kilner bottles 1 litre5K/yr
  • kilner bottles 500ml4K/yr
  • kilner bottles 250ml4K/yr
All search terms

Top kilner 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%£6K20%£12K30%£18K40%£24K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

What buyers say about kilner bottles

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall45%

“Beautiful quality”

Strength8%

“Sturdy and strong”

Advertised Vs Actual Product7%

“As described and just what was required”

Value For Money6%

“I absolutely love these Eidoct Clip Top Preserve Bottles - they are great value for money”

Size-Overall6%

“Theyre also a really nice size”

Leak-Proof6%

“Doesn't leak”

Ease Of Use4%

“easy to use”

Ease Of Cleaning4%

“easy to clean”

Design-Overall3%

“Well designed”

Durability2%

“are very durable”

What buyers complain about

Leak-Proof31%

“These bottles leak if laid on their side”

Quality-Overall22%

“Not what I expected from a well known brand name”

Material Quality13%

“the cap is cheap plastic”

Storage Capacity7%

“They dont hold 1 litre”

Strength6%

“Extremely Fragile”

Durability3%

“Broke incredibly quick”

Value For Money3%

“Not worth the money”

Mounting3%

“Unfortunately, the swing top mounting is not mounted properly, it falls out of the mounting indent whenever I try to close the bottles”

Thickness1%

“Its thick glass so quite heavy”

Portability1%

“cant imagine many people would want to travel with this”

Top return reasons

Size-Overall38%
Defective Material/Parts15%
Compatibility-Overall12%
Leak-Proof10%
Quality-Overall5%
Water Resistance3%
Advertised Vs Actual Product3%
Ease Of Use2%
Wet Cleaning1%
Mechanism Issues1%

Common questions

Is kilner bottles profitable to sell on Amazon United Kingdom?
The niche generates £60K/yr across 23 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +44.8%. Flapen's verdict: Worth a look (50/100).
How competitive is the kilner bottles niche?
7 brands and 49 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in kilner bottles?
Top complaints mined from reviews: Leak-Proof, Quality-Overall, Material Quality. The return rate is 0.4%.
When does demand for kilner bottles peak?
Demand peaks in Dec; the busiest month runs 2.6× the quietest.
What does it cost to enter the kilner bottles niche?
Listings span £5.44–£20.02; the average listing price is £11.14 (sweet spot $15–$100). The average incumbent carries 496 reviews — the moat a new listing must climb.