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45

butter knife

Skip it

Prices mostly outside the sweet spot ($2.30–$9.10) — this niche doesn't clear our bar today.

Market size 26Growth 11Conversion 62Competition 48Returns 97Price range 0Avg price 15Brand share 42Review moat 73Quality gap 78

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good580.47

avg incumbent reviews — the moat a new listing must climb

Conversion

Good5.4%

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

Competition

Okay56%

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

Brand share

Okay80%

top-5 brand share — brands hold most of the demand

Market size

Okay£104K

£104K/yr · 352K searches

Avg price

Bad£5.47

avg listing price — sweet spot $15–$100

Growth

Bad-28.8%

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

Price range

Bad£2.30–£9.10

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

According to Flapen's Amazon United Kingdom niche tracking, butter knife is a £104K/yr Amazon United Kingdom market (352K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 45/100.

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

butter knife market data

Units sold / yr
15K–20K
avg 500–750/product
Revenue / yr
£82K–£109K
units × avg price
Conversion rate
5.4%
Avg BSR
#15
Page quality
0%
Prime
100%
Sponsored
79%
Out of stock
8.8%
Avg brand age
38 months
Avg seller age
189 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

30

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

56%

Top 20: 100%

Open market

16%

  • Tala27%
  • LacusMare22%
  • Zyliss15%
  • HOMQUEN12%
  • MasterClass4%
  • ShiJiuYou4%
  • Open — no brand owns it (7 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -28.8% search growth over the last 90 days.
10K6KHoliday '24Spike '25Black Friday '25Holiday '25SepDecMarJunAugNovMarMay

Peak months: Jan, Dec · busiest ÷ quietest = 2.1×

Top butter knife search terms

  • butter knife237K/yr
  • butter knives46K/yr
  • butter knife spreader25K/yr
  • butter spreader16K/yr
  • butter knife easy spread old style7K/yr
  • spreading knife7K/yr
  • butter knives set of 65K/yr
  • bone handle knife5K/yr
  • sandwich knife4K/yr
All search terms

Top butter knife 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%£10K20%£21K30%£31K40%£42K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

What buyers say about butter knife

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

What buyers love

Quality-Overall23%

“From the listing it seems they are decent quality knives”

Size-Overall9%

“very useful size as per desription”

Value For Money9%

“Value for money”

Advertised Vs Actual Product6%

“they do the job”

Ease Of Use6%

“It is so handy”

Strength3%

“They feel sturdy”

Sharpness3%

“Good knife”

Dishwasher Safe3%

“they wash up beautifully in the dishwasher”

Weight Light3%

“They feel lightweight”

Grip3%

“A good grip”

What buyers complain about

Size-Overall37%

“Bit small”

Strength5%

“flimsy”

Quality-Overall5%

“Look cheap and feel cheap”

Handle Quality3%

“handle length means its is a no for me”

Rusts/Corrodes3%

“Rusts quickly in a dishwasher”

Dishwasher Safe2%

“Cheap construction doesnt stand up to dishwasher use”

Sharpness2%

“They are not sharp as they dont need to be as they are not for cutting”

Value For Money2%

“They do feel a little on the cheaper side though”

Grip1%

“these are so small I cant grip them by the handle without laying my index finger along the top of the blade”

Ease Of Use1%

“not easy to use”

Top return reasons

Size-Overall73%
Quality-Overall9%
Strength4%
Handle Quality2%
Scratch Resistance2%
Sharpness2%
Value For Money1%
Durability1%
Advertised Vs Actual Product1%
Rusts/Corrodes1%

Common questions

Is butter knife profitable to sell on Amazon United Kingdom?
The niche generates £104K/yr across 19 tracked products. 1 of 8 products launched in the last 360 days are still selling. 90-day search growth is -28.8%. Flapen's verdict: Skip it (45/100).
How competitive is the butter knife niche?
13 brands and 30 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in butter knife?
Top complaints mined from reviews: Size-Overall, Strength, Quality-Overall. The return rate is 0.7%.
When does demand for butter knife peak?
Demand peaks in Jan–Dec; the busiest month runs 2.1× the quietest.
What does it cost to enter the butter knife niche?
Listings span £2.30–£9.10; the average listing price is £5.47 (sweet spot $15–$100). The average incumbent carries 580 reviews — the moat a new listing must climb.