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.

kilner jars 2l

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible15.4%

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

Returns

Incredible0.9%

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

Okay2,901

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

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-26.7%

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

Competition

Bad88%

top-5 click share — a locked-up shelf

Brand share

Bad100%

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

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

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

88%

Top 20: 100%

Open market

Kilner79%
Argon Tableware11%
Rayware10%

Demand & seasonality

Weekly Amazon search volume, last 88 weeks — -26.7% search growth over the last 90 days.

Peak months: Aug, Sep, Oct, Nov · busiest ÷ quietest = 4.5×

Open Trend

Top kilner jars 2l search terms

kilner jars 2l26K/yr -36.7%12.8% conv.
large kilner jar7K/yr -18.5%11.5% conv.
2l kilner jars4K/yr -26.8%16.7% conv.
2l glass jar5K/yr -22.0%5.9% conv.
2 litre glass jar6K/yr -23.5%5.0% conv.
2l jar4K/yr -19.6%6.4% conv.
large kilner jars4K/yr -17.6%7.1% conv.
2 litre kilner jar6K/yr -3.1%17.0% conv.
2l kilner jar5K/yr -34.3%18.0% conv.

All 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.

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

Kilner Clip Top Jar 2 Litre (2000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta

Kilner£5.004.7★5,686 rev

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£12.054.5★6,026 rev

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£4.444.7★3,310 rev

Kilner Square Clip Top Jar 3L (3000ml) Airtight Glass Jar for Preserving Whole Fruits Vegetables and Storing Cereals Pasta Nests Pet Biscuits

Kilner£10.704.5★160 rev

Kilner Clip Top Square Jar Ideal for Preserving Fruit/Vegetables 2 Litre Clear (Pack of 4)

Rayware£22.214.5★114 rev

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£10.70160 rev

2y ago

Kilner Clip Top Square Jar Ideal for Preserving Fruit/Vegetables 2 Litre Clear (Pack of 4)

Rayware£22.21114 rev

5y ago

Kilner Clip Top Square Jar Ideal for preserving Fruit/Vegetables 2 Litre Clear (Pack of 2)

Rayware£13.03179 rev

5y ago

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£6.865,259 rev

10y ago

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£12.056,026 rev

11y ago

What buyers say about kilner jars 2l

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

What buyers love

Quality-Overall33%

“Good quality”

Storage Capacity14%

“great storage capacity”

Value For Money13%

“Great value”

Size-Overall10%

“they fit perfectly for me”

Ease Of Use5%

“easy to use”

Strength5%

“It's sturdy as well”

Leak-Proof4%

“Seals well”

Advertised Vs Actual Product3%

“Better than I expected”

Locking Mechanism2%

“Seals well”

Material Quality1%

“Much better than plastic containers”

What buyers complain about

Quality-Overall18%

“Not good quality, cheap imatation”

Rusts/Corrodes17%

“the next day the rust comes back”

Size-Overall16%

“Not fit for purpose”

Design-Overall8%

“Complete design fail”

Ease Of Use5%

“Removing it is difficult”

Weight Heavy3%

“Again they are heavy”

Advertised Vs Actual Product3%

“Misleading”

Smell3%

“the smell is quite strong”

Defective Material/Parts3%

“Defective”

Leak-Proof2%

“not leak proof”

Top return reasons

Size-Overall63%

Defective Material/Parts16%

Ease Of Use3%

Maintenance And Repair3%

Compatibility-Overall2%

Quality-Overall2%

Functionality-Overall1%

Shape/Style1%

Leak-Proof1%

Value For Money1%

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.