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51

small glass jars with lids

Worth a look

Shows low returns (0.9%), but a small market ($66K/yr) keeps it on the watch list.

Market size 17Growth 20Conversion 57Competition 78Returns 96Price range 26Avg price 28Brand share 83Review moat 77Quality gap 38

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Brand share

Great52%

top-5 brand share — no brand owns this niche

Competition

Great37%

top-5 click share — an open shelf

Review moat

Great459.94

avg incumbent reviews — the moat a new listing must climb

Conversion

Good4.9%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay£9.34

avg listing price — sweet spot $15–$100

Price range

Okay£1.43–£19.88

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

Growth

Bad-10.4%

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

Market size

Bad£66K

£66K/yr · 146K searches

According to Flapen's Amazon United Kingdom niche tracking, small glass jars with lids is a £66K/yr Amazon United Kingdom market (146K searches/yr). The top 5 brands hold 52% of demand. Demand peaks in Sep–Nov–Dec. Verdict: Worth a look — 51/100.

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

small glass jars with lids market data

Units sold / yr
6K–8K
avg 100–250/product
Revenue / yr
£56K–£75K
units × avg price
Conversion rate
4.9%
Avg BSR
#170
Page quality
0%
Prime
94%
Sponsored
86%
Out of stock
2.6%
Avg brand age
35 months
Avg seller age
185 days

Competition & brand share

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

35 rising

Sellers

74

Top-5 brand share

52%

Top 20: 89%

Top-5 click share

37%

Top 20: 78%

Open market

42%

  • Kilner21%
  • U-Pack9%
  • GEEZY8%
  • Udewo7%
  • JJA7%
  • ComSaf6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -10.4% search growth over the last 90 days.
9K7KSpike '25SepDecMarJunAugNovMarMay

Peak months: Sep, Nov, Dec · busiest ÷ quietest = 2.4×

Top small glass jars with lids search terms

  • mini jars19K/yr
  • small jar20K/yr
  • small jam jars14K/yr
  • mini glass jars11K/yr
  • mini jar11K/yr
  • small mason jars with lids9K/yr
  • small jam jars with lids13K/yr
  • small mason jars8K/yr
  • mini jars with lids8K/yr
  • small storage jars6K/yr
All search terms

Top small glass jars with lids 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%3%£2K6%£4K9%£6K12%£8K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about small glass jars with lids

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

What buyers love

Quality-Overall25%

“Good quality jar”

Size-Overall20%

“The lids fit properly”

Value For Money15%

“Good price”

Advertised Vs Actual Product9%

“As advertised”

Ease Of Cleaning5%

“Keeps whatever is inside fresh and clean”

Storage Capacity5%

“easy to store”

Leak-Proof4%

“Does not leak”

Ease Of Use4%

“Easy to use”

Strength3%

“sturdy”

Gifting Purpose2%

“They look lovely as presents”

What buyers complain about

Size-Overall34%

“Small jars”

Quality-Overall13%

“three broke during use so not the best quality”

Rusts/Corrodes7%

“the lid has seriously corroded”

Durability6%

“Broke after 2 uses”

Smell5%

“I was led to believe these were smell proof, they are not”

Advertised Vs Actual Product5%

“Wrong size stated”

Leak-Proof3%

“The two-piece lid system is supposed to be leak-proof”

Jamming/Clogging2%

“already 2 of them started chipping pretty badly when closing”

Value For Money2%

“a waste of money”

Natural Resource Wastage1%

“Waste of everything”

Top return reasons

Size-Overall79%
Defective Material/Parts6%
Advertised Vs Actual Product3%
Quality-Overall2%
Leak-Proof1%
Functionality-Overall1%
Compatibility-Overall1%
Rusts/Corrodes1%
Weight Heavy1%
Maintenance And Repair1%

Common questions

Is small glass jars with lids profitable to sell on Amazon United Kingdom?
The niche generates £66K/yr across 49 tracked products. 2 of 9 products launched in the last 360 days are still selling. 90-day search growth is -10.4%. Flapen's verdict: Worth a look (51/100).
How competitive is the small glass jars with lids niche?
35 brands and 74 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 52% of demand.
What do buyers complain about in small glass jars with lids?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Rusts/Corrodes. The return rate is 0.9%.
When does demand for small glass jars with lids peak?
Demand peaks in Sep–Nov–Dec; the busiest month runs 2.4× the quietest.
What does it cost to enter the small glass jars with lids niche?
Listings span £1.43–£19.88; the average listing price is £9.34 (sweet spot $15–$100). The average incumbent carries 460 reviews — the moat a new listing must climb.