Is grinder profitable to sell on Amazon United Kingdom?

The niche generates £785K/yr across 24 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.1%. Flapen's verdict: Worth a look (56/100).

How competitive is the grinder niche?

21 brands and 61 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 62% of demand.

What do buyers complain about in grinder?

Top complaints mined from reviews: Size-Overall, Jamming/Clogging, Durability. The return rate is 0.3%.

When does demand for grinder peak?

Demand peaks in Dec; the busiest month runs 1.8× the quietest.

What does it cost to enter the grinder niche?

Listings span £2.29–£28.76; the average listing price is £9.69 (sweet spot $15–$100). The average incumbent carries 1,088 reviews — the moat a new listing must climb.

grinder

Worth a look

Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Market size

Good£785K

£785K/yr · 1.7M searches

Brand share

Good62%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Good1,087.54

avg incumbent reviews — the moat a new listing must climb

Conversion

Good4.7%

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

Price range

Good£2.29–£28.76

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

Competition

Okay61%

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

Avg price

Okay£9.69

avg listing price — sweet spot $15–$100

Growth

Bad-9.1%

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

According to Flapen's Amazon United Kingdom niche tracking, grinder is a £785K/yr Amazon United Kingdom market (1.7M searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Dec. Verdict: Worth a look — 56/100.

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

grinder market data

Units sold / yr: 80K–100K; avg 2,000–2,500/product
Revenue / yr: £775K–£969K; units × avg price
Conversion rate: 4.7%
Avg BSR: #38
Page quality: 0%
Prime: 96%
Sponsored: 63%
Out of stock: 16.5%
Avg brand age: 40 months
Avg seller age: 167 days

Competition & brand share

The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 falling

Sellers

Top-5 brand share

62%

Top 20: 99%

Top-5 click share

61%

Top 20: 95%

Open market

33%

PPpanda23%
Blazed16%
NCS3512%
Anpro6%
no15%
Spespo5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.1% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 1.8×

Open Trend

Top grinder search terms

grinder582K/yr -5.6%3.8% conv.
grinder for weed339K/yr -16.9%5.1% conv.
grinders256K/yr -7.0%0.2% conv.
herb grinder202K/yr -4.5%4.1% conv.
weed grinder125K/yr -17.0%3.9% conv.
metal grinder64K/yr -18.0%2.9% conv.
grinders for cannabis24K/yr -13.3%2.0% conv.
herb grinder weed20K/yr -10.3%4.9% conv.
weed grinders for smoking weed20K/yr +15.0%3.8% conv.
small grinder14K/yr -2.9%0.4% conv.

All search terms

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

Top sellers

by 90-day click share

Herb Grinders Grinder for Dry Herb Portable Zinc Alloy Metal Grinder Black 5x4cm/2x1.6inch

PPpanda£5.284.5★7,354 rev

Blazed Large Aluminium Herb Grinder (Red)

Blazed£8.654.6★697 rev

NCS35 1x Premium 3 Part Plastic Salt Herb and Spice Grinder 60mm Magnetic Shark Teeth Assorted Colours Portable Herbal Dispoable & Reuseable Durable Pocket Sized Unisex Gift

NCS35£2.724.3★299 rev

Anpro Herb Grinder Premium Zinc Alloy Portable Herbal Grinders with Sifter and Magnetic Top for Dry Herb and Spices - 2.15 Inches

Anpro£6.494.5★8,590 rev

Plastic Herb Grinder 3 Part Magnetic Shark Teeth Assorted Colours

no1£2.294.2★1,798 rev

Newest

by launch date

LegalEyes Herb Grinder Zinc Alloy 4 Piece 50mm Grinder Metal Crusher for Spice- Big Lezz Sassy

LegalEyes£10.083 rev

4mo ago

Geebymol Herb Grinder 61mm(2.4 inch) Large Spice Grinder 4 Layers Portable Zinc Alloy Metal Grinders with Sifter Pollen Scraper and Cleaning Brush for Dry Herb and Spices

Geebymol£7.4320 rev

10mo ago

Grinder Herb Large 63mm 4 Piece Purple Grinder with 40 Sharp Shark Teeth Cool Fantasy Metal Grinders for Kitchen Spice & Herbal Tea Gift Set for Boyfriend & Girlfriend Man & Women(Tree of Life)

Astriva£8.5722 rev

11mo ago

Viberium Metal Grinder 1.8 Inch - Herb Grinder Grinders Crusher Accessories Gifts Cool Dry Herb Mill Big Large Premium Steel Novelty Ginder 4 Piece 4 Chamber XXL Geinder Red

Viberium£13.4996 rev

1y ago

4-Piece Herb Grinder 1.9 Inch (48 mm) Metal Grinder Black

COAST ANGELS£5.4341 rev

1y ago

What buyers say about grinder

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

What buyers love

Quality-Overall29%

“Excellent quality”

Value For Money15%

“Excellent value for money”

Advertised Vs Actual Product5%

“As described”

Ease Of Use5%

“Easy to use”

Size-Overall5%

“Good size”

Design-Overall4%

“it makes a stylish”

Durability3%

“very durable and very easy to use”

Grip3%

“Its 63mm size offers a comfortable grip”

Material Quality3%

“Nice materials good grip”

Strength3%

“the magnets are strong”

What buyers complain about

Size-Overall16%

“Not fit for purpose”

Jamming/Clogging12%

“ffs gets stuck n cant open it for a while all the time”

Durability10%

“it breaks after a month or two”

Quality-Overall7%

“feels cheap”

Value For Money5%

“Could be a couple of quid cheaper”

Strength5%

“Not tough”

Ease Of Use4%

“Wouldn't use”

Advertised Vs Actual Product3%

“Awful grinder, not the same as photo”

Design-Overall3%

“Stupid design”

Ease Of Cleaning2%

“It's also terrible to clean”

Top return reasons

Size-Overall35%

Functionality-Overall20%

Quality-Overall10%

Defective Material/Parts7%

Adhesion/Stickiness4%

Ease Of Use3%

Color2%

Value For Money2%

Mechanism Issues2%

Advertised Vs Actual Product2%

Common questions

Is grinder profitable to sell on Amazon United Kingdom?: The niche generates £785K/yr across 24 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.1%. Flapen's verdict: Worth a look (56/100).
How competitive is the grinder niche?: 21 brands and 61 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 62% of demand.
What do buyers complain about in grinder?: Top complaints mined from reviews: Size-Overall, Jamming/Clogging, Durability. The return rate is 0.3%.
When does demand for grinder peak?: Demand peaks in Dec; the busiest month runs 1.8× the quietest.
What does it cost to enter the grinder niche?: Listings span £2.29–£28.76; the average listing price is £9.69 (sweet spot $15–$100). The average incumbent carries 1,088 reviews — the moat a new listing must climb.